Satoshi Yamamoto, Rikuto Nakajima, Yuya Hirai, Yumiko Kawamura, Yoshimasa Makita, Taro Kitazawa, Mutsumi Kimura, Y Kitazawa
exhibits potent membrane transport yet high cytotoxicity. Stepwise hydroxylation moderates chaotropicity, balancing permeability and biocompatibility. Notably, mono-hydroxylation retains transport activity while minimizing toxicity, whereas further hydroxylation ablates permeability. This strategy advances safe, efficient boron cluster-based carriers for drug delivery and related biomedical applications.