Li Zhiqiang, Professor, Ph.D., doctoral supervisor, Outstanding Contributions Expert of Sichuan Province, Vice Chairman of Chengdu Science and Technology Association, the Sichuan University Standing Committee and deputy secretary of the Communist Party of China. Research interests: collagen chemistry and histology, the application and theory of enzymes on leather-making, theory of supercritical fluid tanning technology. He has hosted or participated in a number of national and provincial research projects, published over 40 papers.