Xiao-Hong Nancy Xu, PHD, is a tenured Associate Professor of Chemistry and Biochemistry at Old Dominion University in Norfolk, Virginia. Her current research program focuses on the development and application of cutting-edge bionanotechnologies and ultrasensitive analytical and sensing methodologies to address fundamental and practical questions in chemical, biochemical, and biomedical sciences and engineering, and is supported by NSF, NIH, DoE, and DoD. She has served extensively as a peer-reviewer for an array of journals and panels and an invited organizer of symposia in chemistry and bioengineering at national and international conferences.