Guest-responsive supramolecular hydrogels expressing selective sol–gel transition for sulfated glycosaminoglycans

Naofumi Kuroda, Yukie Tounoue, Kouichiro Noguchi, Yutaro Shimasaki, Hitoshi Inokawa, Masayoshi Takano, Seiji Shinkai, Shun ichi Tamaru

Research output: Contribution to journalArticle

Abstract

This paper describes the stimuli-responsive hydrogels constructed from bola-type amphiphiles composed of two dipeptides containing phenylalanine attached to the ends of a hydrophobic tetrathiophene. The hydrogel formation ability of the amphiphiles was affected by the N-terminal amino acid residue, which is an amphiphile-possessing phenylalanine-lysine sequence that formed a hydrogel under limited pH conditions. Gel formation occurred because of the phase transition of the gelator assembly from a granular aggregate to a fibrous architecture, in a process controlled by pH. This stimuli-responsive sol–gel transition was also accomplished by the addition of an anionic polymer, and sulfated glycosaminoglycans were successfully discriminated using the hydrogel system.

Original languageEnglish
Pages (from-to)939-946
Number of pages8
JournalPolymer Journal
Volume52
Issue number8
DOIs
Publication statusPublished - Aug 1 2020

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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    Kuroda, N., Tounoue, Y., Noguchi, K., Shimasaki, Y., Inokawa, H., Takano, M., Shinkai, S., & Tamaru, S. I. (2020). Guest-responsive supramolecular hydrogels expressing selective sol–gel transition for sulfated glycosaminoglycans. Polymer Journal, 52(8), 939-946. https://doi.org/10.1038/s41428-020-0341-x