Antimicrobial wool, polyester and a wool/polyester blend created by silver particles embedded in a silica matrix

Klemenčič, Danijela; Tomšič, Brigita; Kovač, Franci; Žerjav, M.; Simončič, A.; Simončić, Barbara

doi:10.1016/j.colsurfb.2013.06.044

Cited by 31 publications

(14 citation statements)

References 25 publications

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“…The Ag emission line considered was 328.068 nm. Ag loading was quantified after fibers digestion following the procedure reported by Klemenĉiĉ et al . Samples were treated by using a mixture of 65 % nitric acid (3 mL) and 30 % hydrogen peroxide (2 mL) in a closed vessel and microwave heated up by means of a High Performance Microwave Digestion Unit mls 1200 Mega MILESTONE with the following thermal program: 5 min at 250 W, 5 min at 400 W, 5 min at 600 W, and 5 min at 250 W. Resulting solutions were filtered and diluted to 20 mL with Milli‐Q (Millipore) ultrapure water (18.2 MΩ cm −1 ).…”

Section: Methodsmentioning

confidence: 99%

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

et al. 2015

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The use of bio-based substances (BBS) obtained from composted biowaste as stabilizers for the production of silver nanoparticles (AgNPs) in substitution to citrate is investigated herein, evaluating the functionalization of natural fibers for textile antibacterial applications. The results obtained evidenced that BBS can substitute citrate as reducing/stabilizing agent in the synthesis, inducing a geometrical control (in shape and size) of the AgNPs. Two different substrates were selected (wool and cotton) and two dip-coating deposition techniques investigated. The release of AgNPs from the supports in water was evaluated under two different experimental conditions: 1) soaking (static conditions) for 7 and 15 days, simulating the contact with sweat, and 2) centrifugation (dynamic conditions), simulating a washing machine treatment. A wide physicochemical characterization was carried out to evaluate the effects of BBS on the morphology and stability of AgNPs suspensions as well as the functionalization effectiveness.

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Section: Methodsmentioning

confidence: 99%

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

et al. 2015

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“…To overcome these drawbacks, diverse techniques, such as cationization, plasma, enzyme, gamma, and microwave treatments, were employed for pretreatment of various textile fibers [4,[10][11][12][13][14][15][16][17][18][19][20]. Fundamentally, the adhesion of natural dyes to natural fibers without any treatment, mordanting, or fixation is inferior [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Surface Functionalization of Wool via Microbial-Transglutaminase as Bio-Mordant to Improve Dyeability with Madder in the Presence of Alum

Pour

2020

Coatings

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Herein, the wool fabric was mordanted with alum, treated with microbial transglutaminase (m-TGase), and then dyed with madder. Different concentrations of alum and m-TGase were used to find out the optimum condition to achieve the best color after dyeing the wool fabrics with aqueous extract of madder. FT-IR spectroscopy and scanning electron microscopy (SEM) methods were applied to characterize the as-prepared samples. Contact angle measurements showed that the water uptake capability was increased in the case of the wool sample treated with alum and enzyme. Moreover, the samples were assessed for color strength (K/S) and color fastness. Our results showed that the optimal condition to get the highest color value was for the sample with 10% owf (of weight of fabric) alum and 5% owf m-TGase. Furthermore, it was found that there was a critical concentration for enzyme so that an increase in m-TGase amount would cause damage to the scales of fibers. The best condition of the dyeing process was discussed in this study, and also the proposed mechanism was presented. Indeed, treatment of wool with m-TGase led to a reduction in the amount of consumed alum, while investigations in color performances demonstrated the enhancement in color fastness, as well as color strength.

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“…This ensures retaining of the original ''textile'' character and appearance of coated textiles. At the same time, the silica matrices can be filled with nanoparticles (Abidi et al 2009;Klemenčič et al 2013;Kowalczyk et al 2015a;Tarimala et al 2006;Tomšič et al 2009). Binding the thin coatings prepared by the sol-gel method to the fiber surface can be significantly improved by using to preparation of film-forming sols the proper organo-silicon precursors, having active functional groups capable of physical or chemical interactions with functional groups on fibers surfaces (Textor and Mahltig 2008), mainly hydroxyl groups in the case of cellulose and polyester fibers.…”

Section: Introductionmentioning

confidence: 99%

Modification of cotton fabric with graphene and reduced graphene oxide using sol–gel method

et al. 2017

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Cotton fabrics were modified by xerogel coatings with dispersed particles of graphene (Gr) or reduced graphene oxide (RGO). To obtain a stable dispersion of Gr or RGO in organo-silicon sol, sodium lauryl sulfate as an anionic surfactant was used. The fabrics were padded with the organo-silicon sol containing dispersed Gr or RGO, forming a thin xerogel coating after drying. The fabrics coated with the xerogel containing 0.5-1.5 wt% of RGO or Gr were prepared and examined. The best anti-static properties were obtained for the coating with 1.5 wt% of Gr, whose surface resistance and volume resistance were on the order of 10 5 and 10 3 X, respectively. Such properties make the fabric suitable for protective cloths in the environment with explosive atmosphere.

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Antimicrobial wool, polyester and a wool/polyester blend created by silver particles embedded in a silica matrix

Cited by 31 publications

References 25 publications

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

Surface Functionalization of Wool via Microbial-Transglutaminase as Bio-Mordant to Improve Dyeability with Madder in the Presence of Alum

Modification of cotton fabric with graphene and reduced graphene oxide using sol–gel method

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