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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240814T110000
DTEND;TZID=America/New_York:20240814T130000
DTSTAMP:20260420T160743
CREATED:20240813T164542Z
LAST-MODIFIED:20240813T164542Z
UID:10001438-1723633200-1723640400@asrc.gc.cuny.edu
SUMMARY:Neuroscience Special Seminar: Hala Harony-Nicolas\, PhD
DESCRIPTION:
URL:https://asrc.gc.cuny.edu/event/neuroscience-special-seminar-hala-harony-nicolas-phd/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Neuroscience
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/neuroscience-special-seminar-hala-harony-nicolas-phd/Hala-Harony-Nicolas-Special-Seminar-Flyer_.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240827T110000
DTEND;TZID=America/New_York:20240827T123000
DTSTAMP:20260420T160743
CREATED:20240821T144041Z
LAST-MODIFIED:20240821T144041Z
UID:10001440-1724756400-1724761800@asrc.gc.cuny.edu
SUMMARY:Guest Speaker: Dr. King Hang Aaron Lau\, PhD
DESCRIPTION:Peptoid Self-Assembly: from Minimal Peptoids to Cell Membrane Interactions\n  \nKing Hang Aaron Lau\, PhD\nAssociate Professor (Senior Lecturer) in Materials and Bionanotechnology\nDepartment of Pure and Applied Chemistry\, University of Strathclyde\, Glasgow\, UK \n  \nAbstract- N-substituted glycine “peptoids” are close structural isomers of peptides and can be synthesized with both natural and non-natural sidechains. Their self-assembly is of great interest not only because they represent a “control set” to probe the fundamental requirements of peptide assembly but also because\, firstly\, they expand the range of assembled structures possible\, and secondly\, they can exhibit simplified sequence design rules due to the elimination of intra-backbone hydrogen bonding. This presentation will introduce our work in recent years to investigate the behavior and biofunctionality of peptoid assemblies based on a range of sequence lengths and chain-end modifications. In terms of “minimal” peptoids\, we recently discovered that certain single C-amidated monomers may form novel 2D crystalline layers at the water-air or water-oil interface that we term interfacial crystals. We were also the first to report the ability of water-soluble peptoid trimers to assemble into pH stable\, sequence-dependent morphologies\, including uniform nanofibers. The unique π-interactions originally observed in fluorescence spectroscopy are now supported by atomistic computation studies. For longer sequences\, by introducing a backbone bending linker in lipo-peptoid amphiphiles and by balancing the peptoid and hydrophobic tail lengths\, we have been able to modify the cytotoxicity of antibacterial sequences. Finally\, with free-floating peptoid nanosheets assembled from long amphiphilic alternating sequences\, we recently are also observing the potential to direct stem cell osteogenesis based simply on physical contact interactions. Based on these synthetic peptoid assemblies\, we hope to demonstrate the expanded possibilities in bioinspired materials enabled by non-canonical sequence-specific polymers and considerations of biophysical effects more generally. \n  \nBIO– Aaron is associate professor in materials chemistry at the University of Strathclyde. He obtained his ScB and ScM at Brown\, PhD at the Max Planck Institute for Polymer Research\, and postdoctoral training at Northwestern. He then started his lab at Strathclyde as a founding member of its Bionanotechnology initiative. Aaron’s experimental research seek to deepen our biophysical chemistry understanding of macromolecules at surfaces and interfaces\, including self-assembly and membrane interactions. This fundamental knowledge is applied to the development of novel bio-\, nano-\, and sustainable bioinspired materials. The main molecular platforms are “peptoids”\, a highly convenient and designable peptide-mimetic synthetic platform\, and tannic acid\, a versatile and multifunctional molecular “integrator”. Current projects include peptoid self-assembly\, antimicrobial peptoids\, acoustically functional structures\, and polyphenol water remediation sorbents. \n 
URL:https://asrc.gc.cuny.edu/event/guest-speaker-dr-king-hang-aaron-lau-phd/
LOCATION:ASRC 1st Floor Seminar Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240905T120000
DTEND;TZID=America/New_York:20240905T140000
DTSTAMP:20260420T160743
CREATED:20240821T145931Z
LAST-MODIFIED:20240821T145931Z
UID:10001441-1725537600-1725544800@asrc.gc.cuny.edu
SUMMARY:Neuroscience Iniative Special Seminar: "Episodic Memory Mechanisms in Aging and Alzheimer's Disease"
DESCRIPTION:
URL:https://asrc.gc.cuny.edu/event/neuroscience-iniative-special-seminar-episodic-memory-mechanisms-in-aging-and-alzheimers-disease/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Neuroscience
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/neuroscience-iniative-special-seminar-episodic-memory-mechanisms-in-aging-and-alzheimers-disease/Michael-Yassa-Seminar-Abstract.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240909T120000
DTEND;TZID=America/New_York:20240909T130000
DTSTAMP:20260420T160743
CREATED:20240905T153603Z
LAST-MODIFIED:20240905T153603Z
UID:10001448-1725883200-1725886800@asrc.gc.cuny.edu
SUMMARY:SBI Special Seminar: Addressing Sensor-Effector Modularity in  Light-Regulated Diguanylate Cyclases
DESCRIPTION:To attend via Zoom\, please use this link.
URL:https://asrc.gc.cuny.edu/event/sbi-special-seminar-addressing-sensor-effector-modularity-in-light-regulated-diguanylate-cyclases/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/sbi-special-seminar-addressing-sensor-effector-modularity-in-light-regulated-diguanylate-cyclases/20240909_winkler_flyer.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240910T120000
DTEND;TZID=America/New_York:20240910T140000
DTSTAMP:20260420T160743
CREATED:20240821T151522Z
LAST-MODIFIED:20240821T151522Z
UID:10001442-1725969600-1725976800@asrc.gc.cuny.edu
SUMMARY:Neuroscience Initiative Special Seminar: "Elucidating Mechanisms of Neuroglia Homeostasis and Metabolism"
DESCRIPTION:
URL:https://asrc.gc.cuny.edu/event/neuroscience-initiative-special-seminar-elucidating-mechanisms-of-neuroglia-homeostasis-and-metabolism/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Neuroscience
ATTACH;FMTTYPE=image/jpeg:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/neuroscience-initiative-special-seminar-elucidating-mechanisms-of-neuroglia-homeostasis-and-metabolism/Aiman-Saab-Special-Seminar-Flyer-3-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240911T113000
DTEND;TZID=America/New_York:20240911T130000
DTSTAMP:20260420T160743
CREATED:20240905T154054Z
LAST-MODIFIED:20240905T154054Z
UID:10001449-1726054200-1726059600@asrc.gc.cuny.edu
SUMMARY:Seminar in Biochemistry\, Biophysics & Biodesign
DESCRIPTION:To attend via Zoom\, please use this link.
URL:https://asrc.gc.cuny.edu/event/seminar-in-biochemistry-biophysics-biodesign/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/seminar-in-biochemistry-biophysics-biodesign/20240911_mcnulty_flyer.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240913T110000
DTEND;TZID=America/New_York:20240913T123000
DTSTAMP:20260420T160743
CREATED:20240905T132525Z
LAST-MODIFIED:20240905T132525Z
UID:10001447-1726225200-1726230600@asrc.gc.cuny.edu
SUMMARY:Guest Speaker: Dr. Ayala Lampel\, PhD
DESCRIPTION:Charge-Mediated Interactions Affect Enzymatic Reactions in Peptide Condensates\nAyala Lampel\, PhD\nShmunis School of Biomedicine and Cancer Research\, George S. Wise Faculty of Life Sciences\, Tel Aviv University\, Tel Aviv\, Israel. Center for Nanoscience and Nanotechnology Tel Aviv University\, Tel Aviv\, 69978\, Israel Sagol Center for Regenerative Biotechnology Tel Aviv University\, Tel Aviv\, 69978\, Israel Center for the Physics and Chemistry of Living Systems Tel Aviv University\, Tel Aviv\, 69978\, Israel \nAbstract- Biomolecular condensates\, formed through liquid-liquid phase separation (LLPS)\, act as enzymatic reaction centers in cells by increasing the local concentrations of enzymes and substrates\, thus facilitating reaction kinetics and regulatory mechanisms. Inspired by these natural systems\, synthetic condensates are increasingly being developed for diverse applications\, including payload delivery\, sensing\, and as microreactors where enzymatic reaction kinetics can be modulated by factors such as pH\, viscosity\, and enzyme-substrate co-localization. We investigated how the physicochemical properties of enzymes and substrates influence condensate formation and their function as microreactors. For this\, we employed a minimalistic complex coacervation system of oppositely charged LLPS-promoting peptides\, and focused on two simple enzymatic model systems\, cellulase and alkaline phosphatase\, which differ in molecular weight and isoelectric point. Our findings demonstrate how electrostatic forces within condensates influence their role as microreactors. Specifically\, the ability of condensates to encapsulate or exclude phosphatase\, cellulase\, and their substrates—which is pivotal for the regulation of reaction kinetics—is determined by enzyme surface charge\, substrate charge\, and condensate charge stoichiometry. These results highlight the potential of utilizing electrostatic forces within condensates to modulate enzymatic reactions\, providing critical insights for the development of synthetic condensates as microreactors in biotechnology and materials science. \nBIO– Ayala Lampel is an assistant professor (senior lecturer) at Tel Aviv University. She obtained a BSc in Neuroscience and a PhD in Biotechnology at Tel Aviv University\, where she worked on virus protein self-assembly in the group of Prof. Ehud Gazit. Ayala performed her postdoctoral research in the group of Prof. Rein Ulijn at the Advanced Science Research Center (ASCR) of the City University of New York (CUNY) between 2015-2019\, where she developed bioinspired peptide-based materials. In 2019\, she started her independent research group at Tel Aviv University. Her group develops synthetic cells and biomolecular condensates.
URL:https://asrc.gc.cuny.edu/event/guest-speaker-dr-ayala-lampel-phd/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240919T100000
DTEND;TZID=America/New_York:20240919T110000
DTSTAMP:20260420T160743
CREATED:20240815T134940Z
LAST-MODIFIED:20240831T192502Z
UID:10001436-1726740000-1726743600@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Michael Scalora
DESCRIPTION:Light-Matter Interactions at the Nanoscale: Harmonic Generation from Metal/Vacuum Interfaces and Novel Aspects of Radiation Reaction \nAbstract – In noble metals a patina of free electrons extends out into free space and vanishes within a fraction of an atomic diameter. We discuss the possibility and consequences of the existence of such a free electron layer\, acting as an epsilon-near-zero medium. Just as classical macroscopic electrodynamics cannot discern either individual atoms or field fluctuations between atoms\, it is similarly unable of discriminating the rapid decay of the free electron spill-out density within a distance that is less than an atomic diameter. The best one can do is treat the boundary as a layer of free charge density having thickness equal to a single spatial discretization step of unknown average density\, equivalent to a delta-function. Under these conditions we predict that if this boundary layer exists it will display enhanced pump absorption and decreased nonlinear thresholds. Finally\, we will discuss a new formulation of radiation reaction that supplants the Abraham-Lorenz classical theory and applies to non-relativistic electrons of finite size. The introduction of an explicit reaction force in the Newtonian equation of motion leads to a new hydrodynamic equation that offers novel insight on the influence of damping in generic plasmas\, metal-based and dielectric nanostructures. \nBio – Michael Scalora received a B.S. degree in physics from Montclair State College\, Montclair\, NJ\, and M.S. and Ph.D. degrees from Rensselaer Polytechnic Institute\, Troy\, NY. From 1991 to 1994\, he was a National Research Council Research Associate at the U.S. Army Aviation and Missile Command\, Redstone Arsenal\, AL. From 1996 to 2001\, he was with Time Domain Corporation\, Huntsville\, AL. In 2001\, he became a Research Physicist for the U.S. Army Aviation and Missile Command. His research interests include integrated photonics\, nonlinear and quantum optics\, beam propagation effects\, and photonic band gap structures. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID 876 7781 9037 Passcode 372485
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-fall-2024-seminar-series-michael-scalora/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240925T113000
DTEND;TZID=America/New_York:20240925T130000
DTSTAMP:20260420T160743
CREATED:20240919T180514Z
LAST-MODIFIED:20240919T180514Z
UID:10001452-1727263800-1727269200@asrc.gc.cuny.edu
SUMMARY:Seminar in Biochemistry\, Biophysics\, and Biodesign
DESCRIPTION:Please use this link to access Zoom.
URL:https://asrc.gc.cuny.edu/event/seminar-in-biochemistry-biophysics-and-biodesign/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/seminar-in-biochemistry-biophysics-and-biodesign/20240925_schuster_flyer-2.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20240930T100000
DTEND;TZID=America/New_York:20240930T110000
DTSTAMP:20260420T160743
CREATED:20240831T130534Z
LAST-MODIFIED:20240831T192439Z
UID:10001444-1727690400-1727694000@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Guancong Ma
DESCRIPTION:Non-Abelian Braiding with Sound and Light\nAbstract – Many physics laws and mathematical rules are insensitive to order. For example\, the addition of numbers disregards the sequence order\, e.g.\, 1+2+3=3+1+2. However\, such a commutative property does not always hold. When the outcomes of a set of operations depend on the execution order\, they can become “non-Abelian.” In the 20th century\, non-Abelian mathematical frameworks have played profound roles in formulating many fundamental laws of modern physics. Famous examples include the classification of hadrons and the unification of electro-weak interactions. Classical physics\, such as mechanics\, electromagnetism\, and optics\, were well established before non-Abelian theories came into play. However\, this does not mean non-Abelian effects are absent in the classical world. One prominent example is a Rubik’s Cube—the moves made on the cube do not always commute: two sequential moves done in different orders do not necessarily get the color palettes to the same layout. We then ask: how and when non-Abelian phenomena arise in classical waves? Delving into this question\, our recent works leverage Berry-phase matrices\, which capture the adiabatic evolution of multiple states\, to realize non-Abelian braiding in acoustics [1] and photonics [2]. Here\, the braiding operations are implemented using coupled waveguide arrays\, which are adiabatically modulated along the guiding direction to enforce a multi-state Berry-phase matrix that swaps the modal dwell sites. The evolution of the guiding modes maps to the generators of braid groups. The non-Abelian characteristics are revealed by switching the order of two distinct braiding operations involving at least three modes. Our results offer new perspectives in exploring novel wave-controlling schemes for future technological applications [3]. \n[1] Z.-G. Chen\, R.-Y. Zhang\, C. T. Chan\, and G. Ma\, Classical Non-Abelian Braiding ofAcoustic Modes\, Nat. Phys. 18\, 179 (2022).\n[2] X.-L. Zhang\, F. Yu\, Z.-G. Chen\, Z.-N. Tian\, Q.-D. Chen\, H.-B. Sun\, and G. Ma\, Non-Abelian Braiding on Photonic Chips\, Nat. Photon. 16\, 390 (2022).\n[3] Y. Yang\, B. Yang\, G. Ma\, J. Li\, S. Zhang\, and C. T. Chan\, Non-Abelian Physics in Light and Sound\, Science 383\, eadf9621 (2024). \nBio – Dr. Guancong Ma is currently a professor of physics at Hong Kong Baptist University. He received B.Sc. in applied physics at the South China University of Technology in 2007 and then Ph.D. in physics at the Hong Kong University of Science and Technology in 2012. After that\, he became a postdoc fellow at the Institute for Advanced Study and the Department of Physics at the same institution until 2017\, when he joined the Department of Physics at Hong Kong Baptist University. He now serves as a member of the Executive Committee of the Physics Society of Hong Kong. Dr. Ma was awarded the “Young Investigator Award 2021” by the International Phononics Society\, and was selected as one of the “Top 10 Rising Stars in Science and Technology 2021” by the China Association for Science and Technology. He is the recipient of the “C. N. Yang Award” in 2022\, awarded by the Association of Asia Pacific Physical Societies and the Asia Pacific Center for Theoretical Physics. Dr. Ma has obtained support from the National Natural Science Foundation of China’s Excellent Young Scientists Scheme (Hong Kong & Macao). Dr. Ma’s research currently focuses on studying topological physics and non-Hermitian physics in using acousticwave and mechanical platforms. He is also interested in metamaterials and complex waves. He has published over 50 papers in peer-reviewed journals\, including Science\, Nature\, Nature research journals\, Physical Review X\, Physical Review Letters. His papers have received over 9100 citations\, which\, according to Charivate\, makes him one of the “World’s Top 2% Scientists.” Dr. Ma also holds 8 US patents\, 2 WIPO patents\, and 9 Chinese patents. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID 869 2924 6949 Passcode 292829
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-guancong-ma/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241002T120000
DTEND;TZID=America/New_York:20241002T140000
DTSTAMP:20260420T160743
CREATED:20240930T162946Z
LAST-MODIFIED:20240930T162946Z
UID:10001453-1727870400-1727877600@asrc.gc.cuny.edu
SUMMARY:Structural Biology SuperGroup
DESCRIPTION:
URL:https://asrc.gc.cuny.edu/event/structural-biology-supergroup/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ORGANIZER;CN="Denise Favaro":MAILTO:dfavaro@gc.cuny.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241009T160000
DTEND;TZID=America/New_York:20241009T170000
DTSTAMP:20260420T160743
CREATED:20240901T011439Z
LAST-MODIFIED:20240919T165614Z
UID:10001446-1728489600-1728493200@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Jonathan Pelliciari
DESCRIPTION:Co-sponsored with CCNY. \nUsing Resonant Inelastic X-Ray Scattering to study quantum materials \nAbstract – Modern light sources like the NSLS-II at Brookhaven National Lab deliver bright tunable photons in a wide range of energies from the THz regime up to 100 keV. This allowed the development of scattering techniques relying on the use of atomic resonances enabling the access to the electronic degrees of freedom in materials. Resonant Inelastic X-Ray Scattering (RIXS) is one of these techniques and thanks to the massive development in instrumentation and theory is playing a significant role in the study of quantum materials with contributions in multiple fields such as superconductivity\, quantum magnetism\, 2D materials\, and lately single photon emission. The sensitivity of RIXS to bosonic excitations of different nature (spin\, orbital\, lattice\, and charge) can provide microscopic information on materials as a function of energy and momentum. In my seminar I will start by introducing RIXS its capabilities and limitations\, followed by a description of the experimental components needed to perform high-resolution RIXS and the solution that we developed at BNL. I will then move forward by highlighting three scientific cases in different fields. The first will involve our investigations on superconducting infinite layer nickelates where we studied the evolution of the spin dynamics across the superconducting dome akin to past studies on the cuprates. The second case regards the study of quantum emitters in hBN where in collaboration with CUNY we could unveil vibronic states and connect them to the signals detected in photoluminescence possibly identifying N2 molecular vibrations as the key for the emergence of quantum emission. Finally\, I will conclude by highlighting one of our studies on excitons in 2D van der Waals magnets where we could detect their nature\, evolution as a function of charge transfer energy (and hybridization)\, and their dispersion in momentum space. \n[1] Ament et al.\, Rev. Mod. Phys. 83\, 705\n[2] Fan et al.\, unpublished\n[3] Pelliciari et al.\, Nat. Mat. 23\, 1230\n[4] Occhialini et al.\, Phys. Rev. X 14\, 031007 \nBio – Jonathan (Johnny) Pelliciari is an Associate Scientist at NSLS-II where he uses advanced scattering techniques (including Resonant Elastic and Inelastic X-Ray Scattering RIXS) to investigate the electronic properties of quantum materials. He got a Bachelor and Master degree in Chemistry at the University of Modena and Reggio Emilia (Italy) and a PhD in Experimental Condensed Matter Physics at the Paul Scherrer Institute and University of Fribourg/Freiburg (Switzerland). His research involves the study of electronic orders such charge and spin density waves and the elementary (spin\, charge\, orbital\, and lattice) excitations in superconductors\, low dimensional systems\, and materials displaying metal-to-insulator transitions. Overall\, his research interests span different physical phenomena such as ultrafast phenomena\, unconventional charge density waves\, spin excitations\, superconductivity\, 2D van der Waals systems\, spin liquids\, and quantum emitters. He developed a laser-RIXS setup commissioned at the SIX beamline to study quantum materials and their ultrafast transitions. \nHe has several active collaborations with external universities and research institutes (CUNY\, Stanford\, MIT\, Yale\, Harvard\, University of Zagreb\, and PSI) on different projects.
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-jonathan-pelliciari/
LOCATION:CCNY Marshak room 418\, 160 Convent Avenue\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241010T140000
DTEND;TZID=America/New_York:20241010T150000
DTSTAMP:20260420T160743
CREATED:20241008T190007Z
LAST-MODIFIED:20241008T190007Z
UID:10001455-1728568800-1728572400@asrc.gc.cuny.edu
SUMMARY:Guest Speaker: Job Boekhoven\, PhD
DESCRIPTION:Regulating molecular assembly with chemical fuels—Spinning ribbons\, dissipative structures\, and an approach towards synthetic life \nJob Boekhoven\, PhD\nDepartment of Bioscience\, Technical University of Munich \nAbstract-Molecular self-assembly is the process in which molecules combine into superstructures held together through non-covalent interactions. Over the last decades\, supramolecular chemists have perfected this art\, and we can now create Gigadalton structures in which each atom is placed with angstrom precision. More importantly\, the unique properties of the emerging assemblies have found their way into everyday life\, like\, for example\, the liquid crystals in our displays. Nevertheless\, biology entirely overshadows us regarding assembly with molecular building blocks. Indeed\, the biological cell has the same molecular toolbox for creating structures; it also uses non-covalent interactions to hold molecules together. Biology uses another trick. Biological structures are governed not only by non-covalent interactions but also by reactions forming covalent ones. Arguably\, molecular self-assembly offers the structures; chemical reactions govern the dynamics and functions of these structures. Biological structures are sustained and regulated in the non-equilibrium regime through chemical reaction cycles that convert energy. The implications\, rules\, and mechanisms there are poorly understood. \nIn this lecture\, I will discuss my team’s effort to elucidate the rules of non-equilibrium self-assembly regulated by chemical reaction cycles. Next\, I will describe a simple yet versatile chemical reaction cycle that can be coupled to self-assembly to create chemically fueled assemblies. Finally\, I will highlight three recent examples of chemically fueled\, non-equilibrium assemblies with vastly different properties than their in-equilibrium counterparts—ribbons that spin spontaneously as they consume fuel and dissipative droplets that periodically form and dissolve when fueled continuously. I will close the lecture with our vision towards synthetic life. \nBio-Job Boekhoven is an Associate Professor at the Bioscience Department of the Technical University of Munich in Germany. He received his PhD in Chemistry under Prof. Jan van Esch and Prof. Rienk Eelkema from the TU Delft in 2012. After a postdoc at Northwestern University (2010-2013)\, he started his independent group in 2016 at the Institute for Advanced Study at the Technical University of Munich as a Rudolf Mössbauer Professor. His honors include an ERC Starting grant (2016) and an ERC Consolidator grant (2024). He has received the VCI – Dozentenpreis and is a Max Planck Fellow in the school Matter to Life. \nJob Boekhoven is developing tools to regulate the self-assembly of molecules the way biology does. He is best known for his work on chemically fueled reaction cycles that control the ability of molecules to assemble or phase separate. The resulting materials show exciting new properties\, such as their intrinsic ability to self-heal or their controllable lifetime. Moreover\, the chemically fueled assemblies manifest features we usually associate with living cells\, like the ability to emerge\, decay\, or even self-divide.
URL:https://asrc.gc.cuny.edu/event/guest-speaker-job-boekhoven-phd/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241014T100000
DTEND;TZID=America/New_York:20241014T110000
DTSTAMP:20260420T160743
CREATED:20240821T152558Z
LAST-MODIFIED:20240831T192413Z
UID:10001443-1728900000-1728903600@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Yakir Hadad
DESCRIPTION:Exact formulation of the mutual particle-cavity dynamics and its use for the study of loss threshold phenomenon under magnetization\nAbstract – Light-matter interaction plays a pivotal role in pushing forward nanotechnology. A particularly important setup involves a resonating particle\, say an emitting molecule or a macroscopic quasi-statically resonating plasmonic or ferromagnetic sphere\, that is located inside a cavity. \nIn this work\, we provide an analytic formulation for the exact calculation of the mutual dynamics between a resonant particle and a rectangular cavity in which it is located. The particle is assumed to be small on the wavelength\, and thus\, its excitation is dominated by a dipolar response that can be described using the discrete dipole approximation and polarizability theory.  The dipolar response depends on the particle’s polarizability function which encapsulates the particle’s materials and geometry\, and on the local field acting on the particle. In principle\, the latter is nothing more than the backscattering of the particle field by the cavity walls.  However\, its derivation may be challenging since it involves a three-dimensional singularity subtraction of the Green’s function in the cavity and the Green’s function in the free space that are differently represented. In this work\, we discuss the use of a recursive ladder-type process involving alternative Green’s function representations to calculate the local field in a computationally efficient and numerically stable manner. Using this approach\, we solve exactly several strongly coupled particle-cavity systems and calculate the collective resonance frequencies of the system. \nAs a particularly interesting example\, we focus on the case when the plasmonic particle is subject to a static magnetic field\,  . In this case\, its gyrotropic response gives rise to non-reciprocal dynamics of the ambient surroundings.  This dynamics depends on the particle’s excitation\, which in turn depends on the gyrotropic material damping rate  . Thus\, intuitively speaking\, the heavier the gyrotropic material loss is\, the weaker the non-reciprocal response will be. This is indeed the case when the particle is located in free space. However\, when the gyrotropic particle is placed inside a cavity\, we show that the non-reciprocity measure is robust against material loss up to a specific loss threshold\,  that depends on the magnetic biasing . \nBio – Dr. Yakir Hadad received the B.Sc. and M.Sc. degrees (summa cum laude) in electrical and computer engineering from the Ben Gurion University of the Negev\, Be’er Sheva\, Israel\, in 2006 and 2008\, respectively\, and the Ph.D. degree in physical electronics from Tel Aviv University\, Tel Aviv\, Israel\, in 2014.\,From 2015 to 2017\, he was a Post-Doctoral Fellow with the Department of Electrical and Computer Engineering\, The University of Texas at Austin\, Austin\, TX\, USA. During recent years\, he also spent several periods as a Visiting Scientist with the FOM Institute Atomic and Molecular Physics (AMOLF)\, Amsterdam\, The Netherlands\, in Fall 2015\, and the University of Pennsylvania\, Philadelphia\, PA\, USA\, in Spring 2013 and in Summer 2018. In 2017\, he joined the Department of Physical Electronics\, Faculty of Engineering\, Tel Aviv University\, where he is currently an Associate Professor. His research interest spreads on a wide range of wave modeling problems as well as on analytical and semi-analytical methods in electromagnetics and acoustics\, with a particular emphasize on wave phenomena in complex media with applications in overcoming bounds of wave theory\, Dr. Hadad received the Felsen Award for Excellence in Electrodynamics from the European Association for Antennas and Propagation in 2016\, the 2017 recipient of the prestigious Alon Fellowship for Outstanding Young Faculty from the Israeli Council of Higher Education\, Listed in Tel-Aviv University Rector’s list for excellence in teaching\, and won the 2020 Krill Prize for excellence in research by the Wolf Foundation. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID 837 9843 9863 Passcode 700331
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-fall-2024-seminar-series-yakir-hadad/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241016T113000
DTEND;TZID=America/New_York:20241016T130000
DTSTAMP:20260420T160743
CREATED:20241003T154033Z
LAST-MODIFIED:20241003T154044Z
UID:10001454-1729078200-1729083600@asrc.gc.cuny.edu
SUMMARY:Seminar in Biochemistry\, Biophysics\, and Biodesign
DESCRIPTION:Please use this link to access Zoom.
URL:https://asrc.gc.cuny.edu/event/seminar-in-biochemistry-biophysics-and-biodesign-2/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/seminar-in-biochemistry-biophysics-and-biodesign-2/Strader-Flyer.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241018T110000
DTEND;TZID=America/New_York:20241018T123000
DTSTAMP:20260420T160743
CREATED:20241009T141302Z
LAST-MODIFIED:20241009T141337Z
UID:10001457-1729249200-1729254600@asrc.gc.cuny.edu
SUMMARY:Guest Speaker: Tanja Weil\, PhD
DESCRIPTION:Synthesis of Interactive Peptide Nanostructures in Living Systems \nTanja Weil\, PhD \nMax Planck Institute for Polymer Research\, Germany \nAbstract- We explore controlled chemical reactions in complex living systems to generate drug molecules\, synthesize peptide nanofibers\, or build new cellular compartments. The introduction of bioresponsive groups enables us to control peptide self-assembly inside the living cell. These groups react in a controlled fashion with cellular stimuli\, including pH\, reactive oxygen species\, glutathione\, and light. The synthetic intracellular peptide nanostructures can interfere with cell respiration\, metabolism\, they can induce controlled cell death\, or activate T-cells. Additionally\, peptide nanostructures can be integrated into the extracellular matrix\, where they facilitate virus binding and enhance the uptake of viral vectors. To optimize the amphiphilic peptide sequences of self-assembling peptides with regard to their multiscale structure formation and bioactivity\, we employ data mining and machine learning tools. \n \nFigure 1. Bioresponsive caged peptide monomers enter living cells and undergo chemical transformations initiated by cellular stimuli and form supramolecular peptide nanofibers that can affect cellular processes. \n\nChagri\, S.; Ng\, D. Y. W.; Weil\, T. Nat. Rev. Chem. 2022\, 6\, 320–338.\nPieszka\, M.; Han\, S.; Volkmann\, C.; Graf\, R.; Lieberwirth\, I.; Landfester\, K.; Ng\, D. Y. W.; Weil\, T. J. Amer. Chem. Soc. 2020\, 142\, 37\, 15780–15789.\nZhou\, Z.; Maxeiner\, K.; Moscariello\, P; Xiang\, S.; Wu\, Y.; Ren\, Y.; Whitfield\, C. J.; Xu\, L.; Kaltbeitzel\, A.; Han\, S.; Mücke\, D.; Qi\, H.; Wagner\, M.; Kaiser\, U.; Landfester\, K.; Lieberwirth\, I.; Ng\, D. Y.W.; Weil\, T. J. Amer. Chem. Soc. 2022\, 144\, 27\, 12219–12228.\nRoth\, P.; Meyer\, R.; Harley\, I; Landfester\, K.; Lieberwirth\, I.; Wagner\, M.; Ng\, D. Y. W.; Weil\, T. Nat. Syn. 2023\, 2\, 980–988.\nKaygisiz\, K.; Rauch-Wirth\, L.; Dutta\, A.; Yu\, X. Q.; Nagata\, Y.; Bereau\, T.; Münch\, J.; Synatschke\, C. V.; Weil T. Nat. Commun. 2023\, 14\, 1\, 5121.\nRen\, Y.; Zhou\, Z.; Maxeiner\, K.; Kaltbeitzel\, A.; Harley\, I.; Xing\, J.; Wu\, Y.; Wagner\, W.; Landfester\, K.; Lieberwirth\, I.; Weil\, T.; Ng\, D. Y. W. 2024\, J. Amer. Chem. Soc. 146\, 17\, 11991.\n\nBio– Prof. Dr. Tanja Weil joined the Max Planck Society in 2017 as one of the directors of the Max Planck Institute for Polymer Research\, heading the division “Synthesis of Macromolecules”. She studied chemistry (1993–1998) at the TU Braunschweig (Germany) and the University of Bordeaux I (France) and completed her PhD at the MPI for Polymer Research under the supervision of K. Müllen. In 2003\, she received the Otto Hahn Medal of the Max Planck Society. From 2002 to 2008 she managed different leading positions at Merz Pharmaceuticals GmbH (Frankfurt) from Section Head Medicinal Chemistry to Director of Chemical Research and Development. In 2008 she accepted an Associate Professor position at the National University of Singapore. Tanja Weil joined Ulm University as Director of the Institute of Organic Chemistry III / Macromolecular Chemistry in 2010. She has received numerous competitive funding at both national and international level including a Synergy Grant of the European Research Council (ERC). She serves in many advisory boards and steering committees: she is a member of the senate of the German Research Foundation\, a member of the senate of the Leibniz Association and of the Leibniz evaluation panel. Tanja is an associate editor for JACS and a member of the editorial advisory board of ACS Nano. Her scientific interests focus on innovative synthesis concepts to achieve functional macromolecules and hybrid materials to solve current challenges in biomedicine and material science.
URL:https://asrc.gc.cuny.edu/event/guest-speaker-tanja-weil-phd/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241021T100000
DTEND;TZID=America/New_York:20241021T120000
DTSTAMP:20260420T160743
CREATED:20240831T191933Z
LAST-MODIFIED:20241009T220559Z
UID:10001445-1729504800-1729512000@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Giovanni Toso and Piero Angeletti
DESCRIPTION:Multi-Beam Antennas (MBAs) and Beam-Forming Networks (BFNs)\nAbstract – Distinguished Speakers Giovanni Toso and Piero Angeletti from European Space Agency\, Netherlands will present the state of the art and the on-going development in Multi-Beam Antennas (MBAs) and Beam-Forming Networks (BFNs). They find applications in several fields including communications\, remote sensing (e.g. radars\, radiometers\, etc.)\, electric surveillance and defense systems\, science (e.g. multibeam radio telescopes)\, RF navigation systems\, etc. They may be installed on board satellites\, airplanes\, trains\, buses\, cars etc. MBAs and BFNs are becoming also fundamental elements in emerging MIMO and 5G communications. The BFN plays an essential role in any antenna system relaying on a set of radiating elements to generate a beam. The lectures cover both theoretical and practical aspects for the following topics: \n\nOverview of systems applications\nMultibeam Antenna Architecture (based on Reflectors\, Arrays. Lenses)\nBeamforming Networks\n\nAnalogue BFNs (Corporate\, Blass\, Nolen\, Butler matrices\, Digital BFNs)\n\n\nOverview of some Operational Multibeam Antennas/BFNs\nOn-going European Developments\nCurrent Design and Technical Challenges\n\nBio – Giovanni Toso received the Laurea Degree (cum laude)\, the Ph.D. and the Post Doctoral Fellowship from the University of Florence\, Italy\, in 1992\, 1995 and 1999\, respectively. Since 2000\, he has been with the Antenna and Submillimeter Waves Section\, European Space Agency (ESA)\, European Space Research and Technology Centre (ESTEC)\, Noordwijk\, The Netherlands. He has been initiating several research and development activities on satellite antennas based on arrays\, reflectarrays\, discrete lenses\, and reflectors. Since 2010\, together with Dr. P. Angeletti\, he has been instructing short courses on Multibeam Antennas and Beamforming Networks during international conferences that have been attended by more than 1200 participants. He is the organizer of two EurAAP-ESoA Courses on Active Antennas and on Satellite Antennas. From January 2023 Giovanni Toso has been elevated to IEEE Fellow grade for contributions to multibeam antenna developments for satellite applications. G. Toso is a Distinguished Lecturer of the IEEE Antennas and Propagation Society and has coauthored about 20 ESA International Patents. \nPiero Angeletti (M’07) received the Laurea degree in electronics engineering from the University of Ancona\, Ancona\, Italy\, in 1996\, and the Ph.D. degree in electromagnetism from the University of Rome “La Sapienza\,” Rome\, Italy\, in 2010.\,His 15 years of experience in RF Systems engineering and technical management encompass conceptual/architectural design\, tradeoffs\, detailed design\, production\, integration\, and testing of satellite payloads and active antenna systems for commercial/military telecommunications and navigation (spanning all the operating bands and set of applications) as well as for multifunction RADARs and electronic counter measure systems. He is currently a Member of the Technical Staff with the European Space Research and Technology Centre (ESTEC)\, European Space Agency\, Noordwijk\, The Netherlands. He is with the RF Payload Systems Division\, ESA Technical and Quality Management Directorate\, which is responsible for RF space communication systems\, instrumentation\, subsystems\, equipment\, and technologies. In particular he oversees ESA R&D activities related to flexible satellite payloads\, RF front ends and on-board digital processors. He authored or coauthored over 150 technical reports\, book chapters\, and papers published in peer reviewed professional journals and international conference proceedings. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID 878 4444 5479 Passcode 058517
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-ieee/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241025T150000
DTEND;TZID=America/New_York:20241025T170000
DTSTAMP:20260420T160743
CREATED:20240919T180225Z
LAST-MODIFIED:20241007T152610Z
UID:10001451-1729868400-1729875600@asrc.gc.cuny.edu
SUMMARY:Communicating Your Science Series Open House Event
DESCRIPTION:Join us for our rescheduled kickoff of our 2024/25 Communicating Your Science Series\, which helps CUNY STEM students\, postdocs and faculty bone up on their science communications skills. Sponsored by the CUNY ASRC IlluminationSpace Hub\, CUNYSciCom\, BRAINE and CUNY Women in STEM\, this open house event will showcase the resources CUNY offers to help you communicate your science to the public and across STEM disciplines. The new date is: \nFriday\, October 25\, 2024\, 3-5 PM \nAdvanced Science Research Center \n85 Saint Nicholas Terrace \nCafé & Auditorium \nNew York\, NY \n  \nEvent Features \n\nTabling Event – Meet the student-led organizations focused on science communications\nLightening Talks – Short talks by CUNY students across different STEM disciplines showcasing how they make their research accessible and exciting\nGC Resources – Representatives from the Teaching & Learning Center\, Career Planning & Professional Development\, Writing Center\, Library and CUNY ASRC IlluminationSpace will be on hand to discuss their resources\nTour – Take a tour of the ASRC’s facilities and the IlluminationSpace.\nSnacks & Beverage – There will be light fare.\n\nPlease register here for the October 4th Communicating Your Science event. \nFor more information\, contact Shawn Rhea at srhea@gc.cuny.edu
URL:https://asrc.gc.cuny.edu/event/communicating-your-science-series-open-house-event/
LOCATION:Advanced Science Research Center (ASRC)\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Environmental Sciences,Nanoscience,Neuroscience,Photonics,Structural Biology
ATTACH;FMTTYPE=image/jpeg:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/communicating-your-science-series-open-house-event/CYS-Open-House-Invite.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241026T110000
DTEND;TZID=America/New_York:20241026T140000
DTSTAMP:20260420T160743
CREATED:20241021T172757Z
LAST-MODIFIED:20241021T172757Z
UID:10001300-1729940400-1729951200@asrc.gc.cuny.edu
SUMMARY:The Science of Forests
DESCRIPTION:Please use this link to RSVP.
URL:https://asrc.gc.cuny.edu/event/the-science-of-forests/
LOCATION:Advanced Science Research Center (ASRC)\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/the-science-of-forests/City-of-Forest-Day.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241029T043000
DTEND;TZID=America/New_York:20241029T183000
DTSTAMP:20260420T160743
CREATED:20241021T172451Z
LAST-MODIFIED:20241023T170047Z
UID:10001459-1730176200-1730226600@asrc.gc.cuny.edu
SUMMARY:October Community Night
DESCRIPTION:Please use this link to RSVP.
URL:https://asrc.gc.cuny.edu/event/mad-scientist-community-night/
LOCATION:Advanced Science Research Center (ASRC)\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
ATTACH;FMTTYPE=image/jpeg:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/mad-scientist-community-night/Mad-Scientist-Community-Night-2.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241030T113000
DTEND;TZID=America/New_York:20241030T130000
DTSTAMP:20260420T160743
CREATED:20241021T135934Z
LAST-MODIFIED:20241021T135934Z
UID:10001458-1730287800-1730293200@asrc.gc.cuny.edu
SUMMARY:Seminar in Biochemistry\, Biophysics\, and Biodesign
DESCRIPTION:Please use this link to access Zoom.
URL:https://asrc.gc.cuny.edu/event/seminar-in-biochemistry-biophysics-and-biodesign-4/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/seminar-in-biochemistry-biophysics-and-biodesign-4/Scheuring-Flyer.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241108T093000
DTEND;TZID=America/New_York:20241108T113000
DTSTAMP:20260420T160743
CREATED:20241104T212657Z
LAST-MODIFIED:20241104T212910Z
UID:10001308-1731058200-1731065400@asrc.gc.cuny.edu
SUMMARY:Thesis Defense: Shixiong Yin
DESCRIPTION:Enhanced Light-Matter Interactions in Complex Photonic Systems \nMentor: Andrea Alù \nAbstract  \nInteractions between light and matter are fundamental to breakthroughs in lasers\, sensing\, imaging\, spectroscopy\, energy harvesting\, and quantum information processing. As a result\, significant recent efforts have been geared towards enhancing and controlling light-matter interactions to advance these applications and technologies. Complex engineered photonic systems\, often involving nanoscale designs of photonic components\, have provided fertile grounds to manipulate light unprecedentedly\, achieving extreme control over interactions among photons and between light and matter. In this dissertation\, we exploit four types of complexity to enhance light-matter and light-light interactions in various photonic platforms. \nFirst\, we start by tailoring the spatial complexity in photonic designs\, which can stimulate unusual light interactions with plasmonic materials. In a one-dimensional metamaterial\, i.e.\, an artificially engineered periodic structure\, we show that perturbing the discrete translational symmetry can induce a topological knot in reciprocal space. It enables strong nonlocal coupling between a dark mode and a brighter surface mode\, which offers new opportunities for efficient sensing and Raman scattering. \nIntroducing complexity in the material constituents together with deliberate spatial designs\, we further explore how nonlinearities in metamaterials unleash novel forms of controlling light emission\, leveraging strongly enhanced interactions with light. Besides\, blending different types of materials can also push the limits of complex photonic designs. We design an ultrasmall nanocavity hybridizing two distinct materials — a high-index dielectric encapsulated by the low-loss metal\, demonstrating record-high Purcell enhancement. The proposed hybridized nanocavity is expected to enhance quantum emission and strong coupling substantially. \nAs another degree of freedom\, complexity can be introduced in the temporal dimension. Time variations in material properties provide a new knob for complex photonic designs. Among them\, time-interfaces\, realized by switching the properties of the entire medium in time\, introduce striking complexity in wave dynamics. In a transmission-line metamaterial\, we have observed time reflections at a photonic time interface and associated broadband and ultrafast frequency translation for the first time. Combining multiple time interfaces in the same platform\, we realize a passive photonic time crystal\, which holds the prospect of extreme interaction with light with zero energy cost\, inaccessible in either time-invariant or conventional time-varying systems. \nFinally\, we harness the complexity in the frequency domain. Complex spectral responses and modal patterns can arise in wave-chaotic systems. In this context\, we realize coherent control over photon-photon interactions in a chaotic photonic microcavity involving over a thousand optical modes. Efficient control of its radiation is further demonstrated via reflectionless scattering modes\, paving the way for efficient energy harvesting\, routing\, and conversion. \nZoom Meeting ID: 722 951 7086 Passcode: 2024 \nMembers of the doctoral faculty are invited to attend.
URL:https://asrc.gc.cuny.edu/event/thesis-defense-shixiong-yin/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241111T123000
DTEND;TZID=America/New_York:20241111T140000
DTSTAMP:20260420T160743
CREATED:20241104T151344Z
LAST-MODIFIED:20241104T151344Z
UID:10001304-1731328200-1731333600@asrc.gc.cuny.edu
SUMMARY:Thesis Defense: Seungri (Victor) Kim
DESCRIPTION:The Effects of Nanoconfined Liquid Properties on the Water-Responsive Behavior of Bacterial Cell Walls\n  \nAbstract: Water-responsive (WR) materials have the ability to mechanically swell and shrink in response to changes in relative humidity (RH). These WR materials are used by many biological systems to perform essential tasks; for example\, pinecones use WR materials to release their seeds in dry environments\, and wheat awns open and close to propel seeds into the soil\, driven by daily RH changes. The WR actuation of some biomaterials is extremely powerful\, for example Bacillus subtilis cell walls display record-high actuation energy and power densities of 72 MJ m-3 and 9.1 MW m-3\, surpassing those of all existing muscles and actuator materials. They hold great potential to be used as high-performance actuators for various applications\, including energy harvesting\, robotics\, and morphing structures. However\, the fundamental mechanisms of WR actuation are still poorly understood. Despite the unclear WR mechanism\, recent studies have provided compelling evidence of the critical role that the properties of nanoconfined water play in these observed high-power WR actuation\, and thus\, adjusting the properties of nanoconfined water should substantially affect WR behavior and performance. \nThis thesis investigates the role of nanoconfined liquids in the WR actuation of bacterial cell walls\, focusing on how modifying their behavior can improve WR performance. In this research\, cell walls of E. coli\, S. aureus\, S. cerevisiae and B. subtilis were extracted and used to investigate the properties of their nanoconfined water. Based on these findings\, we further explored the effects of kosmotropic and chaotropic solutes\, known to stabilize or disrupt hydrogen bonding networks\, on the WR performance of B. subtilis cell walls. We discovered that cell walls treated with low-concentration kosmotropic solutes exhibited a significant increase in WR actuation energy density\, reaching 103.3 MJ m-3. However\, higher concentrations of kosmotropic or chaotropic solutes led to decreased WR performance. Our observations suggest the presence of an optimal range for kosmotropic and chaotropic treatments to enhance WR energy density. These findings could be explained by the impact of the solutes on hydration forces and intermolecular interactions\, which affect the ultimate WR pressure. This\, in turn\, provides a pathway towards achieving superior WR actuation performance and advancing the development of high-work-density actuator materials for diverse industrial applications. \n  \nPlease use the Zoom meeting link below if you cannot attend in person. \nMeeting ID: https://ccny.zoom.us/j/8366033109?pwd=WTZZVzRNZllQUWhsc2RnRHdiN1hWUT09 \nLink to Announcement \n 
URL:https://asrc.gc.cuny.edu/event/thesis-defense-seungri-victor-kim/
LOCATION:ASRC 5th Floor Data Visualization Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241115T140000
DTEND;TZID=America/New_York:20241115T150000
DTSTAMP:20260420T160743
CREATED:20241021T231816Z
LAST-MODIFIED:20241021T231816Z
UID:10001302-1731679200-1731682800@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Bing Cheng
DESCRIPTION:Terahertz probes of quantum matter: from pairing symmetry to high harmonics\nQuantum materials often harbor emergent orders and phases that reveal themselves at low-energy scales\, around 1 to 10 meV. To investigate these collective behaviors\, we turn to the terahertz energy regime—a crucial window for probing and controlling quantum phenomena. In this talk\, I will present our latest breakthroughs in unraveling the superconducting gap structure of the newly discovered unconventional nickelate superconductors— a topic that has sparked intense debate and remains unresolved. Using both linear and nonlinear terahertz spectroscopy\, we uncovered multiple evidence to demonstrate a cuprate-like d-wave gap structure in nickelate superconductors\, providing key insights to steer future research in this field. Expanding beyond understanding\, I will broaden the discussion to the manipulation of quantum materials through light. I will show how we harness intense terahertz pulses to drive the electronic structure of a Dirac semimetal\, leading to the observation of record-breaking terahertz high harmonics. Our findings position topological materials as promising platforms for delving into high harmonic generation and strong-field physics. \nBrief Bio: Bing Cheng earned his Ph.D. in Johns Hopkins University in Sep 2019. Then he moved to Stanford\, and Ames National Lab\, working as a postdoc researcher. At present\, He is working as a research fellow in Prof. Mengkun Liu’s group at Stony Brook University. His research mainly focuses on discovering and understanding exotic quantum phases of matter using a suite of terahertz optics
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-bing-cheng/
LOCATION:ASRC 1st Floor Seminar Room\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241119T140000
DTEND;TZID=America/New_York:20241119T150000
DTSTAMP:20260420T160744
CREATED:20241111T190815Z
LAST-MODIFIED:20241111T190815Z
UID:10001310-1732024800-1732028400@asrc.gc.cuny.edu
SUMMARY:NanoBioNYC workshop: A glance at using National Laboratory Facilities
DESCRIPTION:Join us for an informative online workshop on Tuesday\, November 19 at 2:00 pm on the application process for using facilities at Brookhaven National Laboratory (BNL)\, BNL Center for Functional Nanomaterials and other synchrotron facilities. \nThis workshop will be presented by Dr. Maya N. Nair\, Research Assistant Professor and core facility staff at the Surface Science and Nanofabrication facilities at the Nanoscience initiative at ASRC and Dr. Kübra Kaygisiz\, Postdoctoral Research Associate in Prof. Rein Ulijn’s lab. They will share their experiences and insights into navigating the process and maximizing the opportunities at these facilities. \nRSVP now to secure your spot. We look forward to seeing you there! \n  \n \nBio-Maya N. Nair is a research assistant professor and core facility staff at surface science and nanofabrication facilities at nanoscience initiative at ASRC\, CUNY since 2019. She earned her PhD in Physics from University of Haute Alsace Mulhouse\, France. Following her doctoral work\, she held research positions at Synchrotron SOLEIL\, Paris\, Indian Institute Science\, Banglore\, India and KU Leuven\, Belgium. Dr. Nair conducts research in nanomaterials mainly focusing on nanoelectronics applications. Her research interests include synthesis of two-dimensional(2D) materials\, functionalization and their characterization using various scanning probe microscopies and synchrotron-based photoemission spectroscopies. \n \nBio-Kübra obtained her Ph.D degree in 2023 from the Max Planck Institute for Polymer Research\, Germany. Now\, in her postdoctoral research in Prof. Rein Ulijn’s lab she focuses on the bottom-up synthesis of complex and adaptive peptide systems. For her research on discovery of peptide formulations for drug delivery she collaborates with the Center for Functional Nanomaterials at Brookhaven National Laboratory\, where she works with an automated liquid handling system. \n 
URL:https://asrc.gc.cuny.edu/event/nanobionyc-workshop-a-glance-at-using-national-laboratory-facilities/
LOCATION:Online
CATEGORIES:Nanoscience
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241120T113000
DTEND;TZID=America/New_York:20241120T130000
DTSTAMP:20260420T160744
CREATED:20241118T180641Z
LAST-MODIFIED:20241118T180641Z
UID:10001312-1732102200-1732107600@asrc.gc.cuny.edu
SUMMARY:Seminar in Biochemistry\, Biophysics\, and Biodesign
DESCRIPTION:Please use this link to access Zoom.
URL:https://asrc.gc.cuny.edu/event/seminar-in-biochemistry-biophysics-and-biodesign-3/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/seminar-in-biochemistry-biophysics-and-biodesign-3/20241120_hanson_flyer.pdf
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241125T100000
DTEND;TZID=America/New_York:20241125T110000
DTSTAMP:20260420T160744
CREATED:20240801T123937Z
LAST-MODIFIED:20240831T192259Z
UID:10001439-1732528800-1732532400@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: David Burghoff
DESCRIPTION:Nonlinear Photonics in the Mid-Infrared and Terahertz\nAbstract – Optical sensing at long wavelengths presents significant opportunities and significant challenges. The longwave infrared and terahertz ranges are renowned for their potential to sense molecules in a variety of contexts\, such as high-speed chemical imaging\, disease detection\, and environmental monitoring; however\, their promise has yet to be fulfilled due to a lack of compact broadband sources and low-loss integrated photonics platforms. The most important sensing challenges require extremely wideband sources to achieve specificity and selectivity\, but to date\, there are no technologies that are compact\, bright\, and broadband. \nI will discuss some of the work of my group that seeks to address this challenge. First\, I will discuss our development of quantum cascade laser-based frequency combs\, light sources that fill the gap between broadband incoherent sources and lasers. I will also discuss how our experimental investigations of these combs led to my discovery of a new fundamental comb state that manifests in almost any laser at any wavelength\, acting as the phase equivalent of passive modelocking [1]\, [2]. Next\, I will discuss our recent development of ultra-low-loss platforms for long wavelengths based on hybrid photonic integration\, which allowed us to create optical resonators in the longwave infrared with quality factors 100 times better than the state-of-the-art [3]\, [4]. This approach is fully wavelength-scalable and allows for the first efficient nonlinear optics at long wavelengths\, serving as a foundational element for future applications in quantum sensing. Finally\, I will discuss our development of ptychoscopy\, a new sensing modality that allows for ultra-precise measurements of optical spectra. This measurement enables the measurement of remote signals with quantum-limited frequency resolution over the entire bandwidth of a comb\, for the first time allowing incoherent spectra to be characterized with the precision techniques of combs [5]. \n[1] D. Burghoff\, “Unraveling the origin of frequency modulated combs using active cavity mean-field theory\,” Optica\, vol. 7\, no. 12\, pp. 1781–1787\, Dec. 2020.  [2] M. Roy\, Z. Xiao\, S. Addamane\, and D. Burghoff\, “Fundamental scaling limits and bandwidth shaping of frequency-modulated combs.” (in press\, Optica) [3] D. Ren\, C. Dong\, S. J. Addamane\, and D. Burghoff\, “High-quality microresonators in the longwave infrared based on native germanium\,” Nat. Commun.\, vol. 13\, no. 1\, Art. no. 1\, Oct. 2022.  [4] D. Ren et al.\, “Low-loss hybrid germanium-on-zinc selenide waveguides in the longwave infrared\,” Nanophotonics\, Jan. 2024.  [5] D. J. Benirschke\, N. Han\, and D. Burghoff\, “Frequency comb ptychoscopy\,” Nat. Commun.\, vol. 12\, no. 1\, p. 4244\, Jul. 2021. \nBio – David Burghoff is an Assistant Professor in the Chandra Department of Electrical and Computer Engineering at UT Austin\, where his lab blends photonics and quantum science to develop novel sensing and computing modalities. Prior to this\, he was an assistant professor at Notre Dame and a research scientist at MIT (where he also received his Ph.D.). His awards include the IRMMW-THz Society Young Scientist Award\, Young Investigator Awards from the ONR\, AFOSR\, and NSF\, the Gordon and Betty Moore Foundation’s Inventor’s Fellowship\, and the J.A. Kong Award for MIT’s Best Electrical Engineering Thesis. He is also the lead investigator of the PRISM project\, a Multidisciplinary University Research. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID 871 0407 4948 Passcode 624821
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-fall-2024-seminar-series-david-burghoff/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241206T170000
DTEND;TZID=America/New_York:20241206T190000
DTSTAMP:20260420T160744
CREATED:20241120T154606Z
LAST-MODIFIED:20241120T163605Z
UID:10001314-1733504400-1733511600@asrc.gc.cuny.edu
SUMMARY:Boosting Your Academic Career Though Science Communications
DESCRIPTION:Are you looking to elevate your STEM career? Effective science communication is key to standing out as a researcher\, securing funding\, fostering collaborations\, and broadening the impact of your work. Join us on Friday\, December 6\, 2024\, for an engaging panel discussion with Nerd Night Founder Ben Taylor\, ASRC Photonics and CUNY Graduate Center Physics Professor Matthew Y. Sfeir\, and Social Media Coordinator at the Graduate Center and Journalist Coralie Carlson who will share valuable insights on how mastering science communication can enhance your academic trajectory. There will be a social hour with food and drinks immediately following the panel discussion. \nRegistration: bit.ly/SciComPanel2024 \n For more information\, contact Shawn Rhea at srhea@gc.cuny.edu \nThis event is hosted by BrainE Hour\, CUNYSciCom\, CUNY Women in STEM and the CUNY ASRC Communicating Your Science event series.
URL:https://asrc.gc.cuny.edu/event/boosting-your-academic-career-though-science-communications/
LOCATION:DGSC Lounge\, Room 5409\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Environmental Sciences,Nanoscience,Neuroscience,Photonics,Structural Biology
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241210T100000
DTEND;TZID=America/New_York:20241210T110000
DTSTAMP:20260420T160744
CREATED:20241008T190900Z
LAST-MODIFIED:20241205T034524Z
UID:10001456-1733824800-1733828400@asrc.gc.cuny.edu
SUMMARY:Photonics Initiative Seminar: Mu Wang
DESCRIPTION:Dr. Mu Wang\nNational Laboratory of Solid State Microstructures\, School of Physics\, and Collaborative Innovation\nCenter of Advanced Microstructures\, Nanjing University\, Nanjing 210093\, China \nManipulating Light with Optical Metasurfaces: from Classical to Quantum\nAbstract – This talk focuses on the interaction of electromagnetic waves with metamaterials and manipulating the polarization state of light\, which are essential for on-chip photonics and quantum information processing. By designing a metasurface based on geometrical-scaling-induced phase modulations\, the transformation and distribution of different polarization-entangled photon pairs have been realized with multichannel dielectric metasurfaces. This is a significant development in applying metasurface to quantum networks. We also show a strategy to overcome the fundamental limit of polarization multiplexing capacity of metasurfaces by introducing the engineered noise to the precise solution of Jones matrix elements\, where the conventional restriction of polarization multiplexing roots from the dimension constraint of the Jones matrix. This approach implies a new paradigm for high-capacity optical display\, information encryption\, and data storage. As a practical application\, we also present a metasurface that achieves a matte appearance in reflection while offering broadband\, perfect transmission\, showcasing its potential for various optical technologies. \nReferences:\nY.J. Gao et al.\, Simultaneous generation of arbitrary assembly of polarization states with geometrical-scaling-induced phase modulation\, Physical Review X 10 (3)\, 031035 (2020)\nY.J. Gao\, et al.\, Metasurface design for the generation of an arbitrary assembly of different polarization states\, Physical Review B 104 (12)\, 125419 (2021)\nY.J. Gao\, et al.\, Multichannel distribution and transformation of entangled photons with dielectric metasurfaces Physical Review Letters 129\, 023601 (2022)\nXiong\, et al.\, Breaking the limitation of polarization multiplexing in optical metasurfaces with engineered noise\, Science 379\, 294 (2023)\nChu\, et al.\, Diffuse reflection and reciprocity-protected transmission via a random-flip metasurface\, Science Advances 7\, eabj0935 (2021)\nChu\, et al.\, Matte surfaces with broadband transparency enabled by highly asymmetric diffusion of white light\, Science Advances 10\, eadm8061 (2024) \nBio – Mu Wang\, Cheung-Kong Professor in condensed matter physics at Nanjing University (since 1997) and the adjunct professor at the Department of Materials Science and Chemical Engineering at Stony Brook University\, New York (since 2021). His current research interests include the interaction of light and artificial microstructures\, nanophotonics\, metamaterials\, and fundamentals of interfacial growth in crystallization. During the period of 2014.4-2024.5\, he served as the senior associate editor for Physical Review Letters\, the editor for Physical Review Materials\, and the Outreach Coordinator for the APS Journals in China. He was elected as a Fellow of the IOP (UK)\, a Fellow of the American Physical Society\, and a Fellow of Optica (Optical Society of America). He received his Bs. and Ph.D. degrees from Nanjing University and worked as a postdoctoral researcher at Nijmegen University\, Netherlands. \nThis is an in-person seminar. If you opt to join via zoom use meeting ID  861 1475 2940 Passcode 616928
URL:https://asrc.gc.cuny.edu/event/photonics-initiative-seminar-mu-wang/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Photonics
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20241211T113000
DTEND;TZID=America/New_York:20241211T130000
DTSTAMP:20260420T160744
CREATED:20241209T213145Z
LAST-MODIFIED:20241209T213145Z
UID:10001460-1733916600-1733922000@asrc.gc.cuny.edu
SUMMARY:Special Biochem Seminar: The Thomas H. Haines Memorial Seminar
DESCRIPTION:Please use this link to access Zoom.
URL:https://asrc.gc.cuny.edu/event/special-biochem-seminar-the-thomas-h-haines-memorial-seminar/
LOCATION:ASRC Auditorium\, 85 St. Nicholas Terrace\, New York\, NY\, 10031\, United States
CATEGORIES:Structural Biology
ATTACH;FMTTYPE=application/pdf:https://asrc.gc.cuny.edu/wp-content/uploads/media/event/special-biochem-seminar-the-thomas-h-haines-memorial-seminar/20241211_summers_haines_memorial_flyer-1.pdf
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