单宁酸
明胶
果胶
傅里叶变换红外光谱
核化学
化学
纳米颗粒
银纳米粒子
热稳定性
膜
化学工程
高分子化学
材料科学
纳米技术
生物化学
有机化学
工程类
作者
Ilyas Benkhira,Faiza Zermane,Benamar Cheknane,Djalal Trache,Nicolas Brosse,A. Paolone,Henni Chader,Widad Sobhi
标识
DOI:10.1016/j.ijbiomac.2024.134158
摘要
Wound dressings play a crucial role in protecting injured tissues and promoting the healing process. Traditional fabrication of antibacterial wound dressings can be complex and may involve toxic components. In this study, we developed an innovative hydrogel film (AP:GE@OTA/Ag) composed of amidated pectin (AP), gelatin (GE), oxidized tannic acid (OTA) at varying concentrations, and in-situ reduced silver nanoparticles (AgNPs). FTIR and XRD analyses confirmed that crosslinking occurs via interactions between OTA quinone groups and free amino groups in AP and GE. TEM imaging demonstrated the well-dispersed AgNPs with an average particle size of 58.64 nm, while the TG measurements indicated the enhancement of the thermal stability compared to AP:GE films. The AP:GE@OTA/Ag films exhibited superior fluid uptake ability (90.96 % at 2 h), water retention capacity (91.69 % at 2 h), and water vapor transmission rate (1903.29 g/m
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