Yijing Liu is a Professor at the School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology. He obtained his Ph.D. from the University of Maryland, where he worked under the supervision of Prof. Zhihong Nie's group. He then worked as a postdoctoral fellow in Xiaoyuan Chen's group at the National Institutes of Health (NIH). His research interests focused on the development of multifunctional nanomaterials for theranostic applications, the study of the interaction at nano-bio interfaces, and the design and application of transdermal drug delivery systems such as microneedles. Prof. Liu has published over 100 academic papers including many in high-level journals such as J. Am. Chem. Soc., Angew. Chem. Int. Ed., Chem. Soc. Rev., Nat. BioMed. Eng., Adv. Mat., and ACS Nano.