ZIF-8@CNF修饰的自凝胶粉末的合成及性能研究
Synthesis and performance study of ZIF-8@CNF modified self-gelling powder
In this study,by introducing ZIF-8@nanocellulose (ZIF-8@CNF) nanohybrid materials and functionalizing with a polyacrylic acid (PAA) and quaternized chitosan (QCS) self-gelling powder system,the ZIF-8@CNF/PAA/QCS(MPQ) composite dressing was successfully prepared.The results showed that the introduction of ZIF-8@CNF constructed an organic-inorganic hybrid three-dimensional network,making the pore structure dense and uniform.The MPQ 150 composite material exhibited PBS and blood adsorption rates of 417.3% and 253.7%,respectively,with an adhesion strength of 11.4 kPa,and possessed rapid gelation and self-healing capabilities.The DPPH radical scavenging rate was 31.5%,and the ABTS+ radical scavenging rate was 23.4%.Moreover,the material exhibited bactericidal rates of 92.1% and 91.6% against Staphylococcus aureus and Escherichia coli,respectively,and was non-cytotoxic.The MPQ composite material constructed in this study has great application potential in wound treatment.
ZIF-8 / 纳米纤维素 / 自凝胶粉末 / 抗菌 / 抗菌敷料
ZIF-8 / nanocellulose / self-gelling powder / antibacterial / antibacterial dressing
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黑龙江省自然科学基金资助项目(LH2024C045)
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