Yannan Liu is an Associate Professor and Master’s Supervisor at Northwest University. His research focuses on the preparation and characterization of biomedical hydrogels and the biological function evaluation of highly active natural products.  He has published over 30 peer-reviewed articles as first or corresponding author in prestigious journals such as Small, Journal of Agricultural and Food Chemistry, International Journal of Biological Macromolecules, Journal of Pharmaceutical Analysis, Food & Function, and Biochemical Pharmacology. He holds five authorized invention patents and has received several honors, including the First Prize of the Shaanxi Provincial Science and Technology Award.  Dr. Liu contributed to the monograph Collagen-Based Materials, which won the First Prize in the Book Category of the Excellent Publications Award by the China Petroleum and Chemical Industry Federation. He has served as the principal investigator of multiple research projects, including a General Program and a Young Scientists Fund project funded by the National Natural Science Foundation of China (NSFC), a general research grant from the Shaanxi Provincial Department of Education, and a talent support project under the Xi’an Youth Association for Science and Technology.  In recognition of his excellence in teaching, Dr. Liu was named Outstanding Teacher of Northwest University for the 2022–2023 academic year.