用光辅助原位嵌入银纳米粒子,制备功能化织物。

IF 4.9 Q2 NANOSCIENCE & NANOTECHNOLOGY
Nanotechnology, Science and Applications Pub Date : 2017-11-30 eCollection Date: 2017-01-01 DOI:10.2147/NSA.S139484
Her Shuang Toh, Roxanne Line Faure, Liyana Bte Mohd Amin, Crystal Yu Fang Hay, Saji George
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引用次数: 0

摘要

本文介绍了一种简单、一步到位的原位生成具有抗菌特性的银纳米粒子功能化织物的方法,从而避免了传统的多步骤耗时方法。研究人员使用与硝酸银混合的封端剂(分子量[Mw]为 10,000 和 25,000 的支链聚乙烯亚胺 [BPEI]、聚乙烯吡咯烷酮、聚乙二醇、聚乙烯醇和柠檬酸盐)来研究银纳米粒子的形成。然后将混合物暴露在各种波长的光线(紫外线、红外线和模拟太阳光)下,研究光辅助合成纳米粒子的过程。纳米颗粒的形成与聚合物的还原能力有关,其中 BPEI 的反应最佳。值得注意的是,当总辐照能量保持不变时,辐照波长对纳米粒子的形成影响不大。将浸泡在 1%(w/v)AgNO3 和 1%(w/v)BPEI(Mw 25,000)水溶液中的织物置于光照下,验证了利用该方法在纺织织物(毛巾[100% 棉]、纱布[100% 棉]、人造丝、毛毡[100% 聚酯]和超细纤维[15% 尼龙,85% 聚酯])上原位合成纳米粒子的可行性。使用扫描电子显微镜验证了纳米颗粒在织物上的形成及其洗涤后的保留情况,并使用电感耦合等离子体光发射光谱法对其进行了定量。使用金黄色葡萄球菌、粪肠球菌和大肠杆菌等模型细菌成功证明了织物作为抗菌表面的功能特性。在不使用腐蚀性化学品、溶剂和过度加热的情况下,成功制备出银纳米粒子功能化纺织面料,为实现工业化生产功能化面料的可扩展绿色化学迈出了重要一步,这种面料应用广泛。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A light-assisted in situ embedment of silver nanoparticles to prepare functionalized fabrics.

This article presents a simple, one-step, in situ generation of silver nanoparticle-functionalized fabrics with antibacterial properties, circumventing the conventional, multistep, time-consuming methods. Silver nanoparticle formation was studied with a library of capping agents (branched polyethylenimine [BPEI] of molecular weight [Mw] 10,000 and 25,000, polyvinylpyrrolidone, polyethylene glycol, polyvinylalcohol and citrate) mixed with silver nitrate. The mixture was then exposed to an assortment of light wavelengths (ultraviolet, infrared and simulated solar light) for studying the light-assisted synthesis of nanoparticles. The formation of nanoparticles corresponded with the reducing capabilities of the polymers wherein BPEI gave the best response. Notably, the irradiation wavelengths had little effect on the formation of the nanoparticle when the total irradiation energy was kept constant. The feasibility of utilizing this method for in situ nanoparticle synthesis on textile fabrics (towel [100% cotton], gauze [100% cotton], rayon, felt [100% polyester] and microfiber [15% nylon, 85% polyester]) was verified by exposing the fabrics soaked in an aqueous solution of 1% (w/v) AgNO3 and 1% (w/v) BPEI (Mw 25,000) to light. The formation of nanoparticles on fabrics and their retention after washing was verified using scanning electron microscopy and quantified by inductively coupled plasma optical emission spectrometry. The functional property of the fabric as an antibacterial surface was successfully demonstrated using model bacteria such as Staphylococcus aureus, Enterococcus faecalis and Escherichia coli. The successful generation of silver nanoparticle-functionalized textile fabrics without the use of caustic chemicals, solvents and excessive heating presents a major step towards realizing a scalable green chemistry for industrial generation of functionalized fabrics for a wide range of applications.

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来源期刊
Nanotechnology, Science and Applications
Nanotechnology, Science and Applications NANOSCIENCE & NANOTECHNOLOGY-
CiteScore
11.70
自引率
0.00%
发文量
3
审稿时长
16 weeks
期刊介绍: Nanotechnology, Science and Applications is an international, peer-reviewed, Open Access journal that focuses on the science of nanotechnology in a wide range of industrial and academic applications. The journal is characterized by the rapid reporting of reviews, original research, and application studies across all sectors, including engineering, optics, bio-medicine, cosmetics, textiles, resource sustainability and science. Applied research into nano-materials, particles, nano-structures and fabrication, diagnostics and analytics, drug delivery and toxicology constitute the primary direction of the journal.
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