Jeffrey is the co-inventor of MERFISH technology, developed in Xiaowei Zhuang’s lab. He is applying MERFISH to the construction of cellular atlases on a wide range of tissues with a particular focus on the interface between host and microbial communities. Jeffrey has his PhD in Physics from UC Berkeley where he developed novel methods for manipulating single molecules. Jeffrey is an Associate Member of the Broad Institute and was named Pew Biomedical Scholar in 2019.