Sol-gel transition accelerated by the co-assembly of two components in supramolecular hydrogels

Keigo Matsumoto, Atsuomi Shundo, Masashi Ohno, Kowichiro Saruhashi, Nobuhide Miyachi, Nobutomo Tsuruzoe, Keiji Tanaka

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    N-Palmitoyl-Gly-His (PalGH) and glycerol 1-monopalmitate (GMP) in water co-assembled into fibrils with twisted ribbon structures and formed a homogeneous network, resulting in gel formation. Shaking the gel easily broke the fibril network leading to a sol in which high and low fibril density regions exist. After a period at room temperature, the higher density regions became interconnected. The spontaneous sol-gel transition did not take place for a gel made from only PalGH. Also, during the transition, the aggregation state of the co-assembly remained unchanged at a molecular level, unlike the fibril network. Thus, it can be claimed that the sol-gel transition is not associated with the assembled molecular configuration, but with the change in the fibril network. This knowledge might be useful for understanding and controlling sol-gel transition, thereby leading to the design and functionalization of hydrogels.

    Original languageEnglish
    Pages (from-to)26724-26730
    Number of pages7
    JournalPhysical Chemistry Chemical Physics
    Volume17
    Issue number40
    DOIs
    Publication statusPublished - 2015

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

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