Ke CHENG, Ph.D., is a postdoctoral scholar in the Department of Pharmaceutical Chemistry at the University of California, San Francisco (UCSF), working under the supervision of Prof. Adam Renslo. He received his Ph.D. in Medicinal Chemistry, with formal training in organic synthesis and chemical biology. His research focuses on the design and synthesis of functional small-molecule probes, antibody–drug conjugates (ADCs), and activatable nanotheranostic systems for cancer diagnosis and therapy. His work integrates redox-responsive linkers, self-assembly nanoplatforms, photoactivatable agents, and chemoproteomic strategies to enable selective drug activation and synergistic therapeutic outcomes. He has contributed to the development of disulfide- and trioxolane-based probes, nano-PROTAC systems, and fluorogenic imaging agents for precision medicine. Dr. Cheng has published multiple peer-reviewed articles in medicinal chemistry, chemical biology, and nanomedicine journals and serves as a Guest Editor for the journal Sensors. His research interests lie at the interface of molecular probe design, targeted drug delivery, and translational theranostics.