期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 220, 期 -, 页码 109-116出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.08.052
关键词
Wound dressing; Antibacterial; Antioxidant
资金
- National Natural Science Foundation of China [81902398, 81371685]
- Key Research and Development Projects of People's Liberation Army [BWS17J036]
- Sichuan Province Key Research and Development projects [2020YFS0462]
This study designed a PVA/CS/V three-phase hydrogel dressing using polyvinyl alcohol hydrogel as the base material, with beneficial properties such as wetting, antioxidant, and antibacterial activity. The experimental results showed that the dressing had the best performance in terms of antibacterial and antioxidant properties.
Wound management requires the preparation of controllable, safe and effective dressings to isolate the wound from the external environment. Currently, widely used commercial dressings focus on the isolation effect rather than an environment conducive to wound healing. To provide the dressing with beneficial properties such as wetting and antioxidant and antibacterial activity, this study used polyvinyl alcohol (PVA) hydrogel as the base material and introduced chitosan (CS) and vanillin (V) to design a PVA/CS/V three-phase hydrogel dressing. The dressings were prepared using a freeze-thaw cycle to achieve properties. We conducted a comparative analysis of PVA/V and PVA/CS two-phase hydrogels. The PVA/CS/V (PCV) hydrogel dressing maintaining an elastic modulus at > 5 kPa at 15-40 ?. An in vitro antibacterial assay showed the potent antibacterial ability of hydrogels against gram-positive and-negative bacteria, and cells in some PCV groups showed higher activity. The antioxidant results showed that PCV hydrogel had a potent scavenging effect on DPPH, ABTS(+), and PTIO free radical. The antibacterial and antioxidant properties of three-phase hydrogel showed the best performance in all experimental groups. These results suggest that PCV hydrogel has value in commercial applications due to its simple preparation process and excellent biological properties.
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