IAMS Upcoming Activities 原分所學術演講活動
消息來源：原分所
截止日期：2026-11-12
1.IAMS Lecture
中研院原分所演講公告
| Title | Molecular Mechanisms of Lipid-Dependent Ion Channel Regulation |
| Speaker | Dr. Chieh-Chin Li Department of Anesthesiology, Weill Cornell Medicine, USA 李介勤博士 美國康耐爾大學威爾康奈爾醫學院麻醉學系 |
| Time | 10:00 AM, November 9 (Monday), 2026 |
| Venue | Dr. Poe Lecture Hall, IAMS 本所浦大邦紀念講堂（臺大校園內） |
| Contact | Dr. Liang-Yan Hsu 許良彥博士 |
| Abstract | Ion channels maintain cellular homeostasis and contribute to diverse human diseases. Their activity depends on both intrinsic protein properties and interactions with surrounding membrane lipids. Thermosensitive ion channels mediate responses to temperature changes, yet the mechanisms of temperature sensing and the contributions of membrane lipids remain poorly understood. Here, we investigate temperature sensing in SthK, a model ion channel from a thermophilic bacterium. Combining structural analysis using cryogenic electron microscopy (cryo-EM) with functional assays, we identify a lipid-dependent mechanism in which a salt bridge governs temperature sensitivity. These findings highlight how thermosensitivity can emerge from interactions between a channel protein and its surrounding membrane. Beyond temperature sensing, we reveal an unusual lipid-dependent interaction between positively charged residues that modulates SthK gating. Together, these studies highlight how membrane lipids regulate ion channel function by shaping molecular interactions within the protein. |
2.IAMS Lecture
中研院原分所演講公告
| Title | Nano-femto dressing of quantum atmospheres by pseudoscalar E∙B fields |
| Speaker | Prof. Petek, Hrvoje Department of Physics and Astronomy and the IQ Initiative, University of Pittsburgh, USA 匹茲堡大學物理與天文學系 |
| Time | 3:30 PM, November 9 (Monday), 2026 |
| Venue | Dr. Poe Lecture Hall, IAMS 本所浦大邦紀念講堂（臺大校園內） |
| Contact | Dr. Cheng-Tien Chiang |
| Abstract | According to the Heisenberg’s uncertainty principle, vacuum is alive with Bosonic electromagnetic fluctuations of the electromagnetic field on the Planck scale. In presence of a photonic material with the electric ε and magnetic μ parameters the densities of vacuum states are modified by the Purcell effect dressing the local nearfield quantum atmosphere.1 The properties of the a quantum atmosphere can be further be dressed by application of an external field to cause local symmetry breaking. This is particularly interesting for creation of environments where the parity P and time T symmetries are broken, but the joint PT symmetry is preserved. Such atmospheres support the E∙B≠0 pseudoscalar fields, referred to as false chirality, where the polarizability θ couples to axion electrodynamics. The false chirality is distinct from the true chirality in that its complex Poynting vector S=Im[E×B*]≠0, implying that it is stationary, whereas for the P symmetric true chirality, Im[E⋅B*]=0. In other words, true chirality supports parallel electric and magnetic Aields that drive the magnetoelectric response in matter but cannot propagate electromagnetic Aield energy. We perform ultrafast nonlinear photoemission electron microscopy experiments on surface plasmon polariton fields at a silver-vacuum interface2 at 15 nm spatial and 50 attosecond precision temporal resolution. By geometry of the surface plasmon polariton generating structures, we tailor the spin-orbit interaction of light to generate structured topological plasmonic vortex fields that possess skyrmion and meron spin textures.3-5 We find that the plasmonic vortices host E∙B*≠0 pseudoscalar fields that persist on time scale of the generating optical fields, where the magnetoelectric density is focused on a deep sub-diffraction limited scale.6 We conclude that the plasmonic vortices host quantum atmospheres that support coupling to axion electrodynamics of topological, magnetoelectric, and cosmological character.7 [1] Q.-D. Jiang and F. Wilczek, Quantum atmospherics for materials diagnosis, Physical Review B 99, 201104 (2019). [2] M. Da̧ browski, Y. Dai, and H. Petek, Ultrafast Photoemission Electron Microscopy: Imaging Plasmons in Space and Time, Chem. Rev. 120, 6247 (2020). [3] Y. Dai, Z. Zhou, A. Ghosh, K. Kapoor, M. Dąbrowski, A. Kubo, C.-B. Huang, and H. Petek, Ultrafast microscopy of a twisted plasmonic spin skyrmion, Applied Physics Reviews 9, 011420 (2022). [4] A. Ghosh, S. Yang, Y. Dai, Z. Zhou, T. Wang, C.-B. Huang, and H. Petek, A topological lattice of plasmonic merons, Applied Physics Reviews 8, 041413 (2021). [5] A. Ghosh, S. Yang, Y. Dai, and H. Petek, The Spin Texture Topology of Polygonal Plasmon Fields, ACS Photonics 10, 13 (2023). [6] A. Ghosh, S. Yang, Y. Dai, W. V. Liu, and H. Petek, Plasmonic vortices host magnetoelectric interactions, Physical Review Research 6, 013163 (2024). [7] Y. Dai, A. Ghosh, S. Yang, Z. Zhou, C.-B. Huang, and H. Petek, Poincaré engineering of surface plasmon polaritons, Nature Reviews Physics 4, 562 (2022). |
3.IAMS / NTU Chemistry Joint Lecture
中研院原分所與臺大化學系聯合演講
| Title | Advancing Intelligent Sensing Platforms through Microfluidics, Nanotechnology, and Semiconductor Engineering |
| Speaker | Prof. Chen, Chien-Fu Institute of Applied Mechanics, National Taiwan University 陳建甫教授 臺灣大學應力所 |
| Time | 3:30 PM, November 12 (Thursday), 2026 |
| Venue | Dr. Poe Lecture Hall, IAMS 本所浦大邦紀念講堂（臺大校園內） |
| Contact | Dr. Ching-Wei Lin |
| Abstract | Rapid and accurate sensing technologies are transforming healthcare, environmental monitoring, and industrial applications. My research focuses on developing next- eneration sensing platforms by integrating microfluidics, nanotechnology, and advanced microfabrication to enable rapid, sensitive, and portable analytical systems. By combining engineering innovation with translational research, our goal is to bridge the gap between laboratory discoveries and practical real-world applications. |