Toward Real-time Detection of Biological Signals at Nanoscale: From Nanophotonics to Nanoelectronics

周威博士
哈佛大学

时间：9月26日上午10:30
地点：科学楼902室

讲座摘要：
In this talk, Dr.Zhou will discuss innovative concepts and approaches to design and create nanophotonic and nanoelectronic bio-sensors for the real-time detection of biological signals at nanoscale. A new type of subradiant lattice plasmon resonances with extremely narrow line-widths was discovered in plasmonic nanoparticle arrays, which are more advantageous for refractive-index based bio-sensing than localized surface plasmons. By surrounding plasmonic nanocavity arrays with a gain medium, the loss can be over-compensated to achieve plasmonic lasing action, highly sensitive to the local refractive-index environments of plasmonic nanocavities. On the other hand, nanowire nanoelectronic field-effect-transistors in 3D arrays can be integrated into 3D macroporous scaffolds to create synthetic cyborg tissues, in which 3D real-time electric mapping of heart activities with drug response was demonstrated. Moreover, a bio-inert coating technique was developed to achieve long-term stability of semiconductor nanoelectronic bio-sensors for chronic real-time physiological studies. The innovations discussed in this talk could be inspiring for point-of-care diagnostics, lab-on-a-chip biomedical architectures, implantable devices, and in-vivo drug development platform.

周威博士个人简介:
Dr. Wei Zhou got his Ph.D. in Materials Science and Engineering at Northwestern University in 2012, and currently he works as a Postdoctoral Fellow in Prof. Charles Lieber's lab at Harvard University. He was honored Chinese Government Award for Outstanding Self-Financed Students Abroad in 2012, and he has also won other highly selective awards/Fellowships including International Institute for Nanotechnology (IIN) Outstanding Research Award (2011), Ryan Fellowship (2009-2011), MRSEC Fellowship (2009-2012), etc. He has published 25 peer-reviewed papers, 20 citations per publication (total citations: 520), H-index: 13. Most publications are in top journals, e.g. Nature Nanotechnology, Nano Lett., ACS Nano, PNAS, etc.