Dr Chen’s research is focused on biomaterials, biomedical engineering, biophysics, and the application of nanomaterials in biology and medicine. In these areas, he has been working on physical (microneedle & nanoneedle arrays) and chemical (nanomaterials) for drug delivery and sensing. He has published over 110 papers in peer-reviewed journals including Nature Communications, Advanced Materials, Angewandte Chemie International Edition, Advanced Functional Materials, Small, Advanced Healthcare Materials, Journal of the American Chemical Society, Nano Letters, ACS Nano, Biomaterials, Journal of Controlled Release, Advanced Drug Delivery Reviews, and Chemical Society Reviews. These publications generated an h-index of 50 and >6800 citations. Additionally, he has 2 book chapters and 12 granted patents & 15 patent applications in drug delivery technologies in major countries and regions, mostly in the USA and Europe. For scientific community service, he serves as a reviewer for many fields' top journals such as Science Robotics, Science Advances, Nature Communications, Advanced Materials, Small, Advanced Healthcare Materials, Journal of the American Chemical Society, ACS Nano, Nano Letters, ACS Applied Materials & Interfaces, Journal of Controlled Release, Biomaterials, Advanced Drug Delivery Reviews, and grant proposals from different research councils in the UK (e.g., EPSRC, BBSRC, MRC, CRUK, and Royal Society) and a number of other countries. He is also an associate editor of IET Nanobiotechnology and an editorial board member of Sensors, Journal of Functional Biomaterials, and Bioengineering.