Introduction

In the past decade, the group has been working on the development of virus-based tools for neuro-circuits. By combining current advances in the related fields, such as neurobiology, molecular & cellular biology, virology, neuroimaging and bioengineering, the laboratory has been focused on developing virus-based tools that are of low toxic, high sensitivity, flexible, simple, cell specific, spread direction and range controllable labeling of neuro-circuit in various type of species. Hundreds the tracers have been commercialized and used broadly. In addition, more attentions are being paid to the development of vectors for therapeutical purposes.