Bioimaging at the nanoscale: Single-molecule and super-resolution fluorescence

Thumbnail

Event details

Date 20.09.2013
Hour 14:0015:30
Speaker Pr. Xiaowei Zhuang (Harvard)
Location
Category Conferences - Seminars
Dissecting the inner workings of a cell requires imaging methods with chemical specificity, single-molecule sensitivity, molecular-scale resolution, and dynamic imaging capability such that molecular interactions inside the cell can be directly visualized. Fluorescence microscopy is a powerful imaging modality for cell biological research largely owning to its molecular specificity and dynamic imaging capability. However, the spatial resolution of light microscopy, classically limited by diffraction to a few hundred nanometers, is substantially larger than typical molecular length scales in cells. Hence many subcellular structures and dynamics cannot be resolved by conventional fluorescence microscopy. We recently developed a super-resolution fluorescence microscopy method, stochastic optical reconstruction microscopy (STORM), which has allowed fluorescence imaging with molecular-scale resolution and enabled discoveries of novel sub-cellular structures. In this talk, I will describe STORM and other singlemolecule imaging methods explored in the lab, focusing on recent biological discoveries enabled by these high-resolution imaging approaches.