Department of Materials Engineering, School of Engineering, University of Tokyo, Tokyo, 113-8656, Japan.
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, 02150, Espoo, Finland.
Sci Rep. 2022 Feb 8;12(1):2071. doi: 10.1038/s41598-022-05553-9.
The development of antimicrobial fabrics and textiles that can sustainably inhibit a broad spectrum of microbes is crucial for protecting against pathogens in various environments. However, engineering antimicrobial textiles is challenging due to issues with discoloration and inhibited breathability, the use of harmful or harsh reagents and synthesis conditions, and complex and/or time-consuming processing. Herein, we develop a facile and rapid approach to deposit antimicrobial coatings using universally adherent plant polyphenols and antimicrobial silver ions. Importantly, the coatings are colorless, thin (< 10 nm), rapidly assembled (< 20 min), and can be deposited via immersion or spraying. We demonstrate that these metal-phenolic coatings on textiles can inhibit lipid-enveloped viruses over one thousand times more efficiently than coatings composed of other metal ions, while maintaining their efficacy even after 5 washes. Moreover, the coatings also inhibit Gram positive and negative bacteria, and fungi, and can prevent odors on clothes for at least 10 washes. Collectively, the ease of synthesis, use of simple and safe precursors, and amenability to at-home and industrial application suggests that the coatings will find practical application in various settings.
开发能够可持续抑制广谱微生物的抗菌织物和纺织品对于防止各种环境中的病原体至关重要。然而，由于变色和透气性抑制、使用有害或苛刻的试剂和合成条件以及复杂和/或耗时的处理等问题，工程抗菌纺织品具有挑战性。在此，我们开发了一种简便、快速的方法，使用普遍附着的植物多酚和抗菌银离子来沉积抗菌涂层。重要的是，这些涂层无色、薄（<10nm）、快速组装（<20min），可以通过浸渍或喷涂进行沉积。我们证明，这些涂覆在纺织品上的金属-多酚涂层对脂包膜病毒的抑制效率比由其他金属离子组成的涂层高一千多倍，即使经过 5 次洗涤后仍保持其功效。此外，这些涂层还能抑制革兰氏阳性和阴性细菌以及真菌，并能防止衣服上的气味至少持续 10 次洗涤。总的来说，合成的简便性、使用简单安全的前体以及适合家庭和工业应用的特点表明，这些涂层将在各种环境中找到实际应用。
