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Feng Zhang (Chinese: 张锋; pinyin: Zhāng Fēng; born October 22, 1981) is a Chinese-American biochemist. Zhang currently holds the James and Patricia Poitras Professorship in Neuroscience at the McGovern Institute for Brain Research and in the departments of Brain and Cognitive Sciences and Biological Engineering at the Massachusetts Institute of Technology. He also has appointments with the Broad Institute of MIT and Harvard (where he is a core member). He is most well known for his central role in the development of optogenetics and CRISPR technologies.