Excellent binding effect of <scp>l</scp>-methionine for immobilizing silver nanoparticles onto cotton fabrics to improve the antibacterial durability against washing

Zhou, Jing; Cai, Dongrong; Xu, Qingbo; Zhang, Yanyan; Fu, Feiya; Diao, Hongyan; Liu, Xiangdong

doi:10.1039/c8ra04401e

Cited by 38 publications

(19 citation statements)

References 60 publications

(54 reference statements)

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“…The significant initial decrease in SPR intensity and Ag content is attributed to the loss of Ag NPs that are formed on the surface of the fibers. As demonstrated by other washing studies, − externally located Ag NPs are vulnerable to mechanical and chemical impacts from laundering and are easily washed away. The SPR intensity and Ag content decrease by approximately 3 and 15%, respectively, after 50 cycles.…”

Section: Resultsmentioning

confidence: 81%

“…Moreover, recent studies of various Ag NP-treated textile products in the market reported the lack of washing durability of Ag NPs. − For example, socks emit up to 25% of the total Ag into a detergent solution during a single machine wash , and almost 100% into distilled water during four sequential 24 h gentle agitations . Shirts and trousers lose 18% of the total Ag after a single machine washing cycle in a detergent solution and 2% after one 1 h agitation in tap water .…”

Section: Introductionmentioning

confidence: 99%

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Brown Cotton Fibers Self-Produce Ag Nanoparticles for Regenerating Their Antimicrobial Surfaces

Nam

Selling

Hillyer

et al. 2021

ACS Appl. Nano Mater.

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To produce textiles that regenerate antimicrobial surfaces wash after wash, we synthesized and immobilized antimicrobial silver nanoparticles (Ag NPs) within brown cotton fibers. This composite formation is based on utilizing brown cotton fiber as a nanoreactornatural condensed tannins reduce Ag ions, and the swollen microfibrillar structure controls and stabilizes particle growth. A simple one-step process involving heating brown cotton in an aqueous solution of Ag ions actuates the self-synthesis of Ag NPs. Transmission electron microscopy (TEM) images of the fiber cross-section confirm the formation of Ag NPs (diameter of 8–21 nm, weight fraction of 12 800 mg/kg) throughout the entire volume of the fiber with a unique size distribution. The Ag NPs present within the cotton fiber were found to be leach-resistant against typical textile wet processing and prolonged laundering while serving as a reservoir of Ag ions. After 50 laundering cycles, cotton retains approximately 85% of the total Ag embedded and persistently inhibits 99.99% of both Gram-positive and Gram-negative bacteria. The fabrication of true cotton nanocomposite fibers holds promise for binder-free and permanent functionalization.

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Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Brown Cotton Fibers Self-Produce Ag Nanoparticles for Regenerating Their Antimicrobial Surfaces

Nam

Selling

Hillyer

et al. 2021

ACS Appl. Nano Mater.

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“…This illustrated that the interaction between Ag and S was the key factor for the formation and adhesion of AgNPs on the fiber surface. The sulfur atoms of the methionine residues could link to the AgNPs by coordination bonds to improve the adhesive force of the AgNPs on the fiber surface [ 34 ]. The thiol group of cysteine could immediately react with the Ag + ions to form silver mercaptide and evolve H + ions [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

Silver Nanoparticle-Anchored Human Hair Kerateine/PEO/PVA Nanofibers for Antibacterial Application and Cell Proliferation

et al. 2021

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The main core of wound treatment is cell growth and anti-infection. To accelerate the proliferation of fibroblasts in the wound and prevent wound infections, various strategies have been tried. It remains a challenge to obtain good cell proliferation and antibacterial effects. Here, human hair kerateine (HHK)/poly(ethylene oxide) (PEO)/poly(vinyl alcohol) (PVA) nanofibers were prepared using cysteine-rich HHK, and then, silver nanoparticles (AgNPs) were in situ anchored in the sulfur-containing amino acid residues of HHK. After the ultrasonic degradation test, HHK/PEO/PVA nanofibrous mats treated with 0.005-M silver nitrate were selected due to their relatively complete structures. It was observed by TEM-EDS that the sulfur-containing amino acids in HHK were the main anchor points of AgNPs. The results of FTIR, XRD and the thermal analysis suggested that the hydrogen bonds between PEO and PVA were broken by HHK and, further, by AgNPs. AgNPs could act as a catalyst to promote the thermal degradation reaction of PVA, PEO and HHK, which was beneficial for silver recycling and medical waste treatment. The antibacterial properties of AgNP-HHK/PEO/PVA nanofibers were examined by the disk diffusion method, and it was observed that they had potential antibacterial capability against Gram-positive bacteria, Gram-negative bacteria and fungi. In addition, HHK in the nanofibrous mats significantly improved the cell proliferation of NIH3T3 cells. These results illustrated that the AgNP-HHK/PEO/PVA nanofibrous mats exhibited excellent antibacterial activity and the ability to promote the proliferation of fibroblasts, reaching our target applications.

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“…For example, chemical binders have been added in the finishing solution, , or additional binding procedures have been employed. The fixation procedures generally involve the surface modification of textiles which introduces electrostatic interactions − or covalent bonds , with nanoparticles. These chemical bindings can improve the binding capacity of nanoparticles onto textiles but require multiple chemical reactions, which increase the manufacturing cost and may alter the intrinsic surface nature of textiles.…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoparticle-Infused Cotton Fiber: Durability and Aqueous Release of Silver in Laundry Water

Nam

Hillyer

Condon

et al. 2020

J. Agric. Food Chem.

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Although the application of silver nanoparticles to commercial antibacterial items is well-established, there have been increasing concerns that such particles might leach out, particularly into laundry water from textile products. A recently developed process wherein silver nanoparticles are synthesized in situ within the cotton fiber itself promises, however, to achieve the desired washing durability. In this study, the silver release behavior of the silver nanoparticle-infused cotton fabric during consecutive launderings in water and a detergent solution was analyzed. Silver nanoparticles (12 ± 3 nm in diameter) were uniformly produced throughout the entire volume of cotton fiber with a concentration of 3017 ± 56 mg/kg. A combination of colorimetric, spectroscopic, and elemental analyses showed (1) nonlinear silver release behavior, with a rapid release from externally formed nanoparticles during the initial washing and a plateau-like release from internally formed nanoparticles during extended washing, and (2) superior nanoparticle-leach resistance compared to those in commercial and laboratory-prepared textiles analyzed in the literature. The internal nanoparticles immobilized within cotton fiber exhibited persistent antibacterial activity after 50 home laundering cycles.

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Excellent binding effect of l-methionine for immobilizing silver nanoparticles onto cotton fabrics to improve the antibacterial durability against washing

Abstract: l-Methionine has excellent binding ability with Ag NPs on antimicrobial cotton fabrics.

Cited by 38 publications

References 60 publications

Brown Cotton Fibers Self-Produce Ag Nanoparticles for Regenerating Their Antimicrobial Surfaces

Brown Cotton Fibers Self-Produce Ag Nanoparticles for Regenerating Their Antimicrobial Surfaces

Silver Nanoparticle-Anchored Human Hair Kerateine/PEO/PVA Nanofibers for Antibacterial Application and Cell Proliferation

Silver Nanoparticle-Infused Cotton Fiber: Durability and Aqueous Release of Silver in Laundry Water

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