Dr. Li Junbai has long been dedicated to the controllable assembly of small biomolecules and biological motor proteins. He started from the basic laws of biological molecule activity and intermolecular interactions, constructed a series of biological functional unit assemblies, proposed a new strategy combining interface regulation and intermolecular interaction driving, and achieved systematic innovative results, which have had an important impact in the field of colloid and interface science at home and abroad. The pressure filtration template assembly technology he created achieved the artificial construction of flexible tubes at the micro nano scale and successfully modified linear biomolecule motors on the inner wall. The assembly method simulated the material transport of biomolecule motor proteins in vitro and was also used for virus isolation in vitro. This method has been adopted and used by over 100 research groups both domestically and internationally. He was the first to conduct colloidal chemistry research on short peptides from small molecules to aggregates in biological systems internationally. We have developed an optical detection method that combines in-situ, rapid, and freezing techniques to monitor the dynamic process of assembling short peptides from small molecules into ultra long fibers and transforming them into single crystal structures. We have established a molecular mechanism model for studying the formation of neurodegenerative diseases in vivo in vitro; He further extracted two key proteins from plants that determine the energy conversion efficiency of photosynthesis - photosystem II and ATP synthase. Through interface regulation and optimized recombination, the synthesis efficiency of ATP synthase was enhanced, achieving efficient energy conversion of light energy. In the past two years, we have been invited by Nature Rev Chem, Acc Chem Res, Chem Soc Rev, and Natl Sci Rev to write reviews, leading international research in this field. Published over 300 SCI corresponding author papers and cited more than 12000 times by Science, Nature, and other journals.