Advanced Materials . Credit: Advanced Materials (2026). DOI: 10.1002/adma.73030"> Selected as the Inside Front Cover article in the journal Advanced Materials . Credit: Advanced Materials (2026). DOI: 10.1002/adma.73030 Professor Kyungwho Choi's team of the School of Mechanical Engineering at Sungkyunkwan University, in collaboration with Professor Jinsoo Kim's team in the Department of Chemical Engineering at Kyung Hee University, have proposed a strategy that simultaneously overcomes the limitations of conventional hydrogel-based triboelectric nanogenerators (TENGs)—namely low output performance, poor mechanical strength, and insufficient transparency—by utilizing biomimetic stevia. How stevia transforms hydrogel performance By incorporating stevia into polyvinyl alcohol (PVA), the abundant hydroxyl groups (-OH) simultaneously reinforced the hydrogen bond-based crosslinking structure and crystalline domains, dramatically improving both mechanical strength and ionic conductivity.…