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首页> 外文期刊>ACS applied materials & interfaces >Aqueous Synthesis of Silver Nanoparticle Embedded Cationic Polymer Nanofibers and Their Antibacterial Activity
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Aqueous Synthesis of Silver Nanoparticle Embedded Cationic Polymer Nanofibers and Their Antibacterial Activity

机译：银纳米粒子包埋的阳离子聚合物纳米纤维的水合成及其抗菌活性

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摘要

This paper describes the one-pot, aqueous synthesis of cationic polymer nanofibers with embedded silver nanoparticles. Poly[2-(tert-butylaminoethyl) methacrylate] (PTBAM) was used as a cationic polymer substrate to reinforce the antimicrobial activity of the embedded silver nanoparticles. Electron microscope analyses revealed that the as-synthesized nanofibers had diameters of approximately 40 nm and lengths up to about 10 μm. Additionally, silver nanoparticles of approximately 8 nm in diameter were finely embedded into the prepared nanofibers. The embedded silver nanoparticles had a lower tendency to agglomerate thancolloidal silver nanoparticles of comparable size. In addition, the nanofibers with embedded silver nanoparticles exhibited excellent antibacterial performance against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Interestingly, the prepared nanofibers exhibited enhanced bactericidal performance compared with the silver-embedded poly(methyl methacrylate) (PMMA) nanofibers, presumably because of the antibacterial properties of the PTBAM substrate.
机译：本文介绍了一种具有嵌入式银纳米粒子的一锅水合成阳离子聚合物纳米纤维。聚[甲基丙烯酸2-（叔丁基氨基乙基）甲基酯]（PTBAM）被用作阳离子聚合物基质，以增强嵌入的银纳米颗粒的抗菌活性。电子显微镜分析表明，合成后的纳米纤维的直径约为40 nm，长度可达约10μm。另外，将直径约8nm的银纳米颗粒精细地嵌入到制备的纳米纤维中。嵌入的银纳米颗粒比可比较大小的胶体银纳米颗粒具有更低的附聚趋势。此外，内嵌银纳米颗粒的纳米纤维对革兰氏阴性大肠杆菌和革兰氏阳性金黄色葡萄球菌表现出优异的抗菌性能。有趣的是，与嵌入银的聚甲基丙烯酸甲酯（PMMA）纳米纤维相比，制得的纳米纤维具有增强的杀菌性能，这可能是因为PTBAM基材具有抗菌性。

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