Tzu-Ming Liu, Ph.D., is an Associate Professor of Health Sciences at the University of Macau, Macao. He holds a Ph.D. in photonics and optoelectronics from the National Taiwan University, Taiwan. He has more than 20 years of experience in ultrafast optics, nonlinear microscopy, and medical spectroscopy. Dr. Liu is the author of over 80 journal articles and book chapter on nanomaterials for the investigation of cancer microenvironments.