Antibacterial cotton fabrics based on hydrophilic amino-containing scaffolds

Rauytanapanit, Monrawat; Opitakorn, Apiradee; Terashima, Masuo; Waditee‐Sirisattha, Rungaroon; Praneenararat, Thanit

doi:10.1016/j.colsurfb.2018.01.024

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…Past efforts to improve the antibacterial properties of membrane surfaces involved hydrophilic modifications to prevent adherence of bacteria, , coatings of two- or three-dimensional structures to mechanically inactivate bacteria, , and immobilization of transition-metal oxides to induce the formation of free radicals , or directly transfer electrons, thereby oxidatively stressing biofoulants. , While these strategies individually reduce biofouling, materials whereby all three mechanisms work in tandemsuch as specifically shaped, hydrophilic TiO 2 nanoparticlesmay achieve maximal fouling resistance. TiO 2 nanoparticles exhibit antimicrobial activity − due to their ability to photoinduce oxidative stress, exhibiting more photoreactivity than other biocidal metals such as silver and gold .…”

Section: Introductionmentioning

confidence: 99%

Precisely Engineered Photoreactive Titanium Nanoarray Coating to Mitigate Biofouling in Ultrafiltration

Zhang

Shi

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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To combat biofouling on membranes, diverse nanostructures of titanium dioxide (TiO 2 ) have emerged as effective antimicrobial coatings due to TiO 2 's abilities to transport charge and photoinduce oxidation. However, TiO 2 composite polymeric membranes synthesized using traditional methods of growing crystals have proven chemically unstable, with loss of coating and diminishing antimicrobial performance. Thus, new fabrication methods to enhance durability and efficacy should be considered. In this work, we propose a stepwise approach to construct a stable, uniform TiO 2 nanoarray of regularly spaced, aligned crystals on the surface of a polytetrafluoroethylene ultrafiltration membrane using precisely controlled atomic layer deposition (ALD) followed by solvothermal deposition. We demonstrate that ALD can uniformly seed TiO 2 nanoparticles on the membrane surface with atomic-scale precision. Subsequently, solvothermal deposition assembles and aligns a uniform TiO 2 nanoarray forest. In the presence of sunlight, this TiO 2 nanoarray effectively inactivates any deposited bacteria, increasing flux recovery after membrane cleaning. By systematically investigating this antimicrobial activity, we found that TiO 2 both physically damages cell membranes as well as produces reactive oxygen species in the presence of sunlight that inactivate bacteria. Our study provides an effective bottom-up synthesis scheme to optimize and tailor antifouling TiO 2 coatings for ultrafiltration and other surfaces for a wide range of applications.

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Section: Introductionmentioning

confidence: 99%

Precisely Engineered Photoreactive Titanium Nanoarray Coating to Mitigate Biofouling in Ultrafiltration

Zhang

Shi

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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“…Other methods include the use of various surface coatings, such as magnesium-based brucites, microwave assisted synthesis and immersion technique, among others. [19][20][21][22][23][24] The incorporation of silver nanoparticles into fabrics for antibacterial properties has also been explored extensively. [25][26][27][28] Plasma polymer coatings been used to impart functionalities such as superhydrophobicity and antistatic properties to fabrics.…”

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confidence: 99%

High-speed production of antibacterial fabrics using liquid flame spray

Brobbey

Haapanen²,

Tuominen

et al. 2019

Textile Research Journal

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Healthcare associated infections (HAIs) are known as one of the major problems of the modern healthcare system, which result in additional cost and mortality. It has also been shown that pathogenic bacteria are mostly transferred via surfaces in healthcare settings. Therefore, antibacterial surfaces, which include fabrics and textiles, can be used in a healthcare environment to reduce the transfer of pathogenic bacteria, hence reducing HAIs. Silver nanoparticles have been shown to have broad spectrum antibacterial properties, and therefore they have been incorporated into fabrics to provide antibacterial functionality. Liquid flame spray (LFS) nanoparticle synthesis allows nanoparticles to be produced and deposited on surfaces at speeds up to and beyond 300 m/min. Herein, LFS is used to deposit silver nanoparticles onto two fabrics that are commonly used in the hospital environment with the aim of producing antibacterial fabrics. A thin plasma coating on top of the fabrics after silver deposition is used to improve nanoparticle adhesion. Fabrics coated with silver nanoparticles demonstrated antibacterial properties against Escherichia coli. Nanoparticle imaging and surface chemical characterization are performed using scanning electron microscopy and X-ray photoelectron spectroscopy. The highlights of this research are as follows: • high-speed synthesis and deposition of silver nanoparticles on fabrics; • plasma coating onto fabrics with silver nanoparticles; • antibacterial fabrics for potential use in healthcare environments.

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