阳离子光敏抗菌型水凝胶的制备及性能表征
Preparation and property characterization of cationic photoantimicrobial hydrogel
查看参考文献21篇
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文摘
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利用蒙脱土(MMT)分别吸附3种阳离子光敏剂(meso-四(1-甲基吡啶嗡-4-基)卟吩对甲苯磺酸盐(TMPyP)、 meso-四(N-甲基-4-吡啶)卟吩四氯化锌(Zn-TMPyP)、亚甲基蓝(MB)),然后均匀分散在聚乙烯醇-苯乙烯基吡啶盐缩合物(PVA-SbQ)的水溶液中,通过紫外光交联法制备出相应的光敏MMT/PS水凝胶。借助透射电子显微镜(TEM)对MMT和MMT/PS形貌结构进行分析,利用扫描电子显微镜(SEM)、热重分析仪(TGA)对3种光敏水凝胶的内部形貌、热学性能进行分析,研究其溶胀性能及对金黄色葡萄球菌的抗菌效果。结果表明:3种光敏MMT/PS水凝胶均具有良好的溶胀性能。抗菌结果显示,三者对金黄色葡萄球菌均具有一定的杀灭效果,其中负载Zn-TMPyP的水凝胶在光照条件下对金黄色葡萄球菌的杀菌率达到98.49%。 |
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其他语种文摘
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Montmorillonite(MMT)was utilized to absorb three types of cationic photosensitizers, namely,meso-tetra(4-N-methylpyridyl)porphyrine tetratosylate (TMPyP),Zn(Ⅱ)meso-tetra (N-methyl-4-pyridyl)porphine tetrachloride(Zn-TMPyP)and methylene blue(MB),the as-obtained mixtures were then evenly dispersed in aqueous polyvinyl alcohol-styrylpyridine salt condensate (PVA-SbQ)solution,corresponding photoactive MMT/PS hydrogels were prepared by the assay of UV cross-linking eventually.Transmission electron microscopy(TEM)was employed to analyse morphology of MMT and one as-prepared MMT/PS hydrogel.Scanning electron microscopy(SEM)and thermogravimetric analysis(TGA)were applied to analyse the internal morphology and thermal properties of the as-prepared hydrogels.Finally,swelling properties and antibacterial effect against staphylococcus aureus(S.aureus)were investigated.The results show that three photoactive MMT/PS hydrogels are successfully prepared with good swelling properties.The as-prepared hydrogels exhibit inactivation against S.aureus to some extent,furthermore,the hydrogel which immobilizes Zn-TMPyP reveals best inactivation efficacy,with a sterilization rate of 98.49%. |
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来源
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材料工程
,2019,47(2):56-61 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2017.000588
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关键词
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蒙脱土
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水凝胶
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光敏抗菌
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金黄色葡萄球菌
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地址
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江南大学, 生态纺织教育部重点实验室, 江苏, 无锡, 214122
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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化学工业 |
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基金
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2018年江苏省研究生科研创新计划项目
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国家自然科学基金国家杰出青年科学基金
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中央高校基本科研业务费专项资金
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文献收藏号
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CSCD:6449866
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