Dr. Choi is a graduate of the Polymer-Nano Science Program at CBNU and earned his advanced degree in Nanomedicine from JAIST in 2004. After experiencing gene and drug delivery as a postdoc, he extended his research into molecular imaging at Harvard Medical School and recently joined the Gordon Center for Medical Imaging of MGH. Since 2008, his laboratory focuses on the development of novel contrast agents for tissue- and organ-specific targeting and diagnosis. Of particular interest is targeted fluorophores, which can be used for bioimaging and nanomedicine by specifically visualizing target tissue with high optical properties and by avoiding nonspecific uptake in normal background tissues.