Dr. Lee has extensive knowledge and experience in biomaterials science, especially, biodegradable polymers and tunable hydrogels, with specific training and expertise in key research areas for tissue engineering and regenerative medicine. His research team has developed various biomaterial systems that improve cellular interactions by providing appropriate environmental cues. Dr. Lee’s research team also demonstrated the principle of “in situ tissue regeneration? that is to take advantage of the body’s own regenerating capacity by using the host's ability to mobilize endogenous stem cells to the site of injury. Currently, his research has focused on development of strategies for in situ tissue regeneration in terms of mechanism of host cell recruitment, cell sourcing, cellular and molecular roles in cell differentiation, navigational cues and niche signals, and a tissue-specific smart biomaterial system from the perspective of regenerative medicine and tissue engineering.