My research objective is to develop new biophysical methods to advance current understandings of cellular machinery in the complicated environment of living cells. We bring together state-of-the-art nanotechnology, physical science, engineering and molecular and cell biology, to advance current understandings of biological processes. Currently, there are two major research directions: (1) Developing nanoscale tools to probe electric activities and cellular processes at the cell-material interface. In this area, we have developed nanoscale electric probes, structural probes and optical probes with high sensitivity and subcellular localization. We identify membrane curvature as one of the crucial biochemical signals that translate nanoscale surface topography into intracellular signaling. (2) Employing optical, magnetic, and optogenetic tools to understand nerve growth factor (NGF) signaling in neurons. By adapting a variety of microscopy, optogenetic, nanotechnology and biochemical tools, we aim for a deeper understanding of NGF signaling in normal neurons and neurodegenerative diseases.
Research Interests: