Bactericidal and Fungicidal Action of Copper Nanoparticles on Leather Surface

IF 0.6 4区 工程技术 Q4 CHEMISTRY, APPLIED Journal of The American Leather Chemists Association Pub Date : 2023-12-01 DOI:10.34314/jalca.v118i12.8252
Deepak N, Inbasekar C, Nishad Fathima Nishter
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Abstract

Although tanning makes the collagen matrix resilient against microbial attack, the chemicals used in the finishing process are susceptible to microbes. Hence, it is imperative to develop a finishing process with inherent antimicrobial properties. Leathers with antimicrobial properties evoke a considerable array of interest in consumers. The present study aims to enhance the antimicrobial properties of the leather using copper nanoparticles in the finishing and retanning process. Copper nanoparticles have been synthesized by chemical reduction using copper sulphate pentahydrate as the precursor with dialdehyde starch and gallic acid. The prepared nanoparticles have been characterized using UV-Visible spectrometry, dynamic light scattering, scanning electron microscopy, transmission electron microscopy, and X-ray  diffraction techniques. The prepared nanoparticles have been used in both retanning and finishing processes. The experimental leather retanned using copper nanoparticles possess good mechanical strength properties and color index value compare to the control. Nanoparticles are effective against both gram negative and positive bacterial organisms. The nanoparticles also inhibit the growth of common fungus, which can colonize on leather. Thus, the current study paves the way for a novel solution that is an alternative to biocides and antimicrobial chemicals and is more effective in inhibiting microbial growth.
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纳米铜粒子对皮革表面的杀菌和防霉作用
虽然晒黑使胶原蛋白基质具有抗微生物的弹性,但在整理过程中使用的化学物质很容易受到微生物的影响。因此,开发具有固有抗菌性能的整理工艺势在必行。具有抗菌性能的皮革引起了消费者的广泛兴趣。本研究的目的是在皮革整理和复鞣过程中使用铜纳米颗粒来提高皮革的抗菌性能。以五水硫酸铜为前驱体,以二醛淀粉和没食子酸为原料,采用化学还原法制备了纳米铜。利用紫外可见光谱法、动态光散射、扫描电子显微镜、透射电子显微镜和x射线衍射技术对制备的纳米颗粒进行了表征。制备的纳米颗粒已用于复鞣和整理工艺。实验用纳米铜复鞣的皮革具有良好的机械强度和显色指数值。纳米粒子对革兰氏阴性和阳性细菌都有效。纳米颗粒还能抑制常见真菌的生长,这种真菌可以在皮革上繁殖。因此,目前的研究为一种新的解决方案铺平了道路,这种解决方案可以替代杀菌剂和抗菌化学品,并更有效地抑制微生物的生长。
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来源期刊
Journal of The American Leather Chemists Association
Journal of The American Leather Chemists Association 工程技术-材料科学:纺织
CiteScore
1.30
自引率
33.30%
发文量
29
审稿时长
3 months
期刊介绍: The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.
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