03/12/2025
🎉 Congratulations to Prof. Sung Gap Im’s research group at KAIST and their collaborators on their recent publication in Advanced Materials!
Their new study presents an exciting breakthrough for the future of intestinal stem-cell therapy. The team engineered a fully synthetic, xenogeneic-free culture surface (PLUS) that significantly enhances stem-cell adhesion, spreading, and 1.8× faster migration, offering 𝗮 𝘀𝘁𝗮𝗯𝗹𝗲 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗳𝗼𝗿 𝗿𝗲𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲
Label-free 3D holotomography enabled the team to visualize—in real time—𝘁𝗵𝗲 𝗱𝘆𝗻𝗮𝗺𝗶𝗰 𝗺𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗶𝗻𝘁𝗲𝘀𝘁𝗶𝗻𝗮𝗹 𝘀𝘁𝗲𝗺 𝗰𝗲𝗹𝗹𝘀 𝗼𝗻 𝘁𝗵𝗲 𝗣𝗟𝗨𝗦 𝘀𝘂𝗿𝗳𝗮𝗰𝗲. Using quantitative refractive-index imaging, the researchers tracked colony movement, lamellipodia formation, and cytoskeletal remodeling without dyes or phototoxicity, providing clear mechanistic insights into how the engineered surface accelerates epithelial repair.
This is a remarkable achievement that advances both biomaterial engineering and stem-cell biology.
https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202513371
This study introduces a PoLymer-coated Ultra-stable Surface (PLUS), a nitrogen plasma-treated poly(ethyleneglycoldimethacrylate), as a stable xenogeneic-free platform for intestinal stem cell culture...