U.S. Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, LA 70124, USA.
Wildwood Cotton Technologies, Greenwood, MS 38930, USA.
Molecules. 2023 Jan 20;28(3):1051. doi: 10.3390/molecules28031051.
In this study, a simple and effective way to produce washable antimicrobial wipes was developed based on the unique ability of raw cotton fiber to produce silver nanoparticles. A nanocomposite substructure of silver nanoparticles (25 ± 3 nm) was generated in raw cotton fiber without reducing and stabilizing agents. This nanocomposite raw cotton fiber (2100 ± 58 mg/kg in the concentration of silver) was blended in the fabrication of nonwoven wipes. Blending small amounts in the wipes-0.5% for antimicrobial properties and 1% for wipe efficacy-reduced the viability of and by 99.9%. The wipes, fabricated from a blend of 2% nanocomposite raw cotton fiber, maintained their antibacterial activities after 30 simulated laundering cycles. The washed wipes exhibited bacterial reductions greater than 98% for both Gram-positive and Gram-negative bacteria.
在这项研究中，基于原棉纤维产生银纳米粒子的独特能力，开发出了一种简单有效的生产可水洗抗菌擦拭布的方法。在没有还原剂和稳定剂的情况下，在原棉纤维中生成了银纳米粒子（25±3nm）的纳米复合亚结构。将这种纳米复合原棉纤维（银浓度为 2100±58mg/kg）混合在非织造擦拭布的制造中。在擦拭布中混入少量的纤维（0.5%用于抗菌性能，1%用于擦拭效果），将 和 的存活率降低了 99.9%。由 2%纳米复合原棉纤维混合物制成的擦拭布，在经过 30 次模拟洗涤循环后仍保持其抗菌活性。经洗涤的擦拭布对革兰氏阳性菌和革兰氏阴性菌的细菌减少率均大于 98%。
