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Novel collagen‐based hydrogels with injectable, self‐healing, wound‐healing properties via a dynamic crosslinking interaction
Author(s) -
Ding Cuicui,
Yang Qili,
Tian Mengdie,
Guo Chenchen,
Deng Feng,
Dang Yuan,
Zhang Min
Publication year - 2020
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.6027
Subject(s) - self healing hydrogels , guar gum , wound healing , self healing , borax , fourier transform infrared spectroscopy , materials science , sodium dodecyl sulfate , skin repair , polymer chemistry , chemical engineering , biomedical engineering , chemistry , organic chemistry , biochemistry , surgery , medicine , raw material , alternative medicine , pathology , engineering
Collagen‐based hydrogels have gained significant popularity in biomedical applications; however, traditional collagen hydrogels are easily disabled for lack of self‐healing properties due to their non‐reversible bonds. Here, a self‐healing collagen‐based hydrogel has been developed based on dynamic network chemistry, consisting of dynamic imine linkages between collagen and dialdehyde guar gum, as well as diol‐borate ester bonds between guar gum and borax. In addition, macromolecular interactions amongst macromolecules are involved. The above‐mentioned interactions were validated by Fourier transform infrared spectroscopy, sodium dodecyl sulfate polyacrylamide gel electrophoresis and DSC. The as‐prepared collagen‐based hydrogels showed good injectability and rapid self‐healing capacity (within 3 min) as reflected from injection tests, optical microscope observations, rheological measurements, as well as self‐healing studies. In addition, the collagen‐based hydrogels showed accelerated wound‐healing properties. This study offers a facile strategy to endow self‐healing ability on collagen‐based hydrogels without any external stimulus, which show great application potential as wound dressings. © 2020 Society of Chemical Industry