光热治疗
自愈水凝胶
聚合
材料科学
光热效应
聚苯胺
纳米颗粒
伤口敷料
纳米技术
化学
化学工程
高分子化学
复合材料
聚合物
工程类
作者
Qian Pang,Kaihao Wu,Zilian Jiang,Zewen Shi,Zizhen Si,Qiang Wang,Yuhao Cao,Ruixia Hou,Yabin Zhu
标识
DOI:10.1002/mabi.202100386
摘要
Antibacterial hydrogel wound dressing is highly desirable in wound healing and infection control. However, the development of antibacterial hydrogels with controllable antibacterial properties and adequate mechanical properties without bacterial resistance and potential toxicity remains a challenge. Herein, a double bonds-ended polyaniline nanoparticle (Me-PANI NP) is synthesized, which can convert light energy into heat upon near-infrared (NIR) irradiation, and it is used as a novel photothermal antibacterial agent. The obtained bonds-ended Me-PANI NPs are subsequently involved in polyacrylamide (PAM) polymerization and served as chemical crosslinking points to form the Me-PANI NPs@PAM hydrogel, endowing the hydrogel with controllable photothermal antibacterial abilities upon NIR irradiation without time and space limit. Importantly, due to the energy dissipation of Me-PANI NPs under stretch, the Me-PANI NPs@PAM hydrogel achieves a maximum stretching ratio of 400% mechanical flexibility. The developed hydrogel can be potentially applied as a novel wound dressing to realize controllable treatment of bacterial infections and accelerate skin wound healing.
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