Tetrapeptide–coumarin conjugate 3D networks based on hydrogen-bonded charge transfer complexes: gel formation and dye release | Zendy

Zongxia Guo | Zendy; Ruiying Gong | Zendy; Yi Jiang | Zendy; Xiaobo Wan | Zendy

Open Access

Tetrapeptide–coumarin conjugate 3D networks based on hydrogen-bonded charge transfer complexes: gel formation and dye release

Author(s) -

Zongxia Guo,

Ruiying Gong,

Yi Jiang,

Xiaobo Wan

Publication year - 2015

Publication title -

soft matter

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 170

eISSN - 1744-6848

pISSN - 1744-683X

DOI - 10.1039/c5sm00995b

Subject(s) - conjugate , coumarin , synthon , chemistry , tetrapeptide , hydrogen bond , size exclusion chromatography , supramolecular chemistry , self healing hydrogels , conjugated system , spectroscopy , polymer chemistry , crystallography , organic chemistry , peptide , molecule , crystal structure , polymer , mathematical analysis , biochemistry , physics , mathematics , quantum mechanics , enzyme

Oligopeptide-based derivatives are important synthons for bio-based functional materials. In this article, a Gly-(L-Val)-Gly-(L-Val)-coumarin (GVGV-Cou) conjugate was synthesized, which forms 3D networks in ethanol. The gel nanostructures were characterized by UV-vis spectroscopy, FT-IR spectroscopy, X-ray diffraction (XRD), SEM and TEM. It is suggested that the formation of charge transfer (CT) complexes between the coumarin moieties is the main driving force for the gel formation. The capability of the gel to encapsulate and release dyes was explored. Both Congo Red (CR) and Methylene Blue (MB) can be trapped in the CT gel matrix and released over time. The present gel might be used as a functional soft material for guest encapsulation and release.

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