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The influence of coating with aminopropyl triethoxysilane and CuO/Cu2O nanoparticles on antimicrobial activity of cotton fabrics under dark conditions
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-05 , DOI: 10.1002/app.49194 Darka Marković 1 , Jelena Vasiljević 2 , Jelena Ašanin 1 , Tatjana Ilic‐Tomic 3 , Brigita Tomšič 2 , Bojan Jokić 4 , Miodrag Mitrić 5 , Barbara Simončič 2 , Dušan Mišić 6 , Maja Radetić 7
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-05 , DOI: 10.1002/app.49194 Darka Marković 1 , Jelena Vasiljević 2 , Jelena Ašanin 1 , Tatjana Ilic‐Tomic 3 , Brigita Tomšič 2 , Bojan Jokić 4 , Miodrag Mitrić 5 , Barbara Simončič 2 , Dušan Mišić 6 , Maja Radetić 7
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A novel impregnation process for the fabrication of cotton nanocomposite with strong antimicrobial activity against antibiotics‐resistant bacteria and yeast was developed. The impregnation process includes the sol–gel treatment of fabric with (3‐aminopropyl)triethoxysilane in the first step, and synthesis of the CuO/Cu2O nanoparticles (NPs) on the fabric surface in the second step. The in situ synthesis of the CuO/Cu2O NPs was based on the adsorption of Cu2+‐ions by the introduced amino groups of the sol–gel coating. The adsorbed Cu2+‐ions are subsequently reduced in the alkaline solution of NaBH4. X‐ray diffraction measurements confirmed the formation of CuO/Cu2O NPs. Scanning electron microscopy and atomic absorption spectrometry analyses indicate that the particle size, agglomeration, and amounts of synthesized NPs were highly affected by the initial concentration of CuSO4 solution. The toxicity of nanocomposites to human keratinocytes (HaCaT) and antimicrobial activity against Gram‐negative Escherichia coli ATCC 25922, E. coli ATCC BAA 2469, and Klebsiella pneumoniae ATCC BAA 2146, and Gram‐positive bacteria Staphylococcus aureus ATCC 25923, S. aureus ATCC 43300 and yeast Candida albicans ATCC 24433 strongly depended on the copper content. In addition to excellent antimicrobial activity, controlled release of Cu2+‐ions from the fabrics into physiological saline solution was obtained.
中文翻译：
氨基丙基三乙氧基硅烷和CuO / Cu2O纳米粒子包覆对棉织物在黑暗条件下抗菌活性的影响
开发了一种新型的浸渍纳米棉复合材料浸渍工艺，该复合材料对抗生素抗性细菌和酵母具有很强的抗菌活性。浸渍过程包括第一步中用（3-氨基丙基）三乙氧基硅烷对织物进行溶胶-凝胶处理，第二步中在织物表面上合成CuO / Cu 2 O纳米颗粒（NPs）。CuO / Cu 2 O NPs的原位合成是基于溶胶-凝胶涂层中引入的氨基对Cu 2+离子的吸附。随后在NaBH 4的碱性溶液中还原吸附的Cu 2+离子。X射线衍射测量证实了CuO / Cu 2的形成O NP。扫描电子显微镜和原子吸收光谱分析表明，CuSO 4溶液的初始浓度极大地影响了颗粒的大小，团聚和合成的NP数量。纳米复合材料，以人角质形成细胞（HaCaT细胞）和抗微生物活性对革兰氏阴性的毒性大肠杆菌ATCC 25922，大肠杆菌ATCC BAA 2469，和肺炎克雷伯氏菌ATCC BAA 2146，和革兰氏阳性菌金黄色葡萄球菌ATCC 25923，金黄色葡萄球菌ATCC 43300和白色念珠菌酵母ATCC 24433在很大程度上取决于铜含量。除了出色的抗菌活性外，还获得了织物中Cu 2+离子向生理盐水溶液中的受控释放。
更新日期：2020-03-05
中文翻译：
氨基丙基三乙氧基硅烷和CuO / Cu2O纳米粒子包覆对棉织物在黑暗条件下抗菌活性的影响
开发了一种新型的浸渍纳米棉复合材料浸渍工艺，该复合材料对抗生素抗性细菌和酵母具有很强的抗菌活性。浸渍过程包括第一步中用（3-氨基丙基）三乙氧基硅烷对织物进行溶胶-凝胶处理，第二步中在织物表面上合成CuO / Cu 2 O纳米颗粒（NPs）。CuO / Cu 2 O NPs的原位合成是基于溶胶-凝胶涂层中引入的氨基对Cu 2+离子的吸附。随后在NaBH 4的碱性溶液中还原吸附的Cu 2+离子。X射线衍射测量证实了CuO / Cu 2的形成O NP。扫描电子显微镜和原子吸收光谱分析表明，CuSO 4溶液的初始浓度极大地影响了颗粒的大小，团聚和合成的NP数量。纳米复合材料，以人角质形成细胞（HaCaT细胞）和抗微生物活性对革兰氏阴性的毒性大肠杆菌ATCC 25922，大肠杆菌ATCC BAA 2469，和肺炎克雷伯氏菌ATCC BAA 2146，和革兰氏阳性菌金黄色葡萄球菌ATCC 25923，金黄色葡萄球菌ATCC 43300和白色念珠菌酵母ATCC 24433在很大程度上取决于铜含量。除了出色的抗菌活性外，还获得了织物中Cu 2+离子向生理盐水溶液中的受控释放。
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