香港中文大学物理系 

Abstract: The optical properties of nitrogen vacancy (NV) centers in diamond are sensitive to their spin states, making NV centers effective quantum sensors for applications ranging from condensed matter physics to biomedicine. The long spin coherence time of NV center electrons makes them particularly attractive in biological applications. NV centers are sensitive to the magnetic field projected along the NV axis, so any changes in the orientation of a diamond sample containing NVs would cause detectable modulation in its optically detected magnetic resonance spectrum. This method is known as vector magnetometry and offers excellent spatial resolution and measurement sensitivity for determining the orientation changes of NVs in the diamond sample. In this talk, we discuss the development of nanodiamond (ND)-based orientation sensing for studying cell dynamics and mechanics. Examples include live cell plasma membrane dynamics and single-cell elasticity. 

About the speaker: Quan Li is Professor at The Chinese University of Hong Kong. She obtained her B.S. in Chemistry from Beijing University in 1997, and her PhD in Materials Science and Engineering from Northwestern University in 2001. She joined CUHK in 2002 as an Assistant Professor, and was promoted to Associate Professor and Professor in 2007, and 2011, respectively. Her research interests include functional materials and structures for energy and biomedical applications, and quantum sensing. Her work on energy materials focuses on electrode materials/architectures development for batteries. In investigating nano-bio interfaces, her group works on manipulating the interplay of nanoparticles and biological systems, as well as nano-vaccine development.  Her work of quantum sensing is devoted to sensor development and applications in both energy storage and biomedicine. 

联系人：刘刚钦 (82649801, gqliu@iphy.ac.cn)