Antimicrobial Coatings Obtained by Sol–Gel Method

Mahltig, Boris; Grethe, Thomas; Haase, Hajo

doi:10.1007/978-3-319-19454-7_102-1

Cited by 6 publications

(4 citation statements)

References 98 publications

(90 reference statements)

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“…One important obstacle that is currently hindering the development of effective antibacterial textiles is the lack of comparability between different studies [ 22 ]. So far, only few publications use more than one method to assess antibacterial activity, leading to extremely limited information on potential differences between the results of commonly used test methods.…”

Section: Introductionmentioning

confidence: 99%

Comparison of methods for determining the effectiveness of antibacterial functionalized textiles

et al. 2017

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Antimicrobial functionalization of textiles is important for various applications, such as protection of textile materials from decomposition, generation of more effective wound dressings, and the prevention of infections or malodors resulting from bacterial growth. In order to test the efficacy of new products, their antibacterial activity needs to be evaluated. At present, several different procedures are being used for this purpose, hindering comparisons among different studies. The present paper compares five of these assays using a sample panel of different textiles functionalized with copper (Cu) and silver (Ag) as antibacterial agents, and discusses the suitability of these methods for different analytical requirements. Bacterial viability was determined by measuring the optical density at 600 nm, a colorimetric assay based on MTT (3-[4, 5-dimethylthiazol-2-yl]-2, 5 diphenyl tetrazolium bromide) conversion, an agar diffusion assay, and colony formation, either after culturing in media containing textile samples, or after recovery from textiles soaked with bacterial suspension. All experiments were performed with a Gram-negative (Escherichia coli) and a Gram-positive (Staphylococcus warneri) model organism. In general, the results yielded by the different methods were of good comparability. To identify the most suitable test system for the particular type of antibacterial coating, several factors need to be taken into account, such as choosing appropriate endpoints for analyzing passive or active antibacterial effects, selection of relevant microorganisms, correcting for potential interference by leaching of colored textile coatings, required hands on time, and the necessary sensitivity.

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Section: Introductionmentioning

confidence: 99%

Comparison of methods for determining the effectiveness of antibacterial functionalized textiles

et al. 2017

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“…Mahltig et al reported that the sol-gel processing exhibited the antimicrobial activity based on controlled release, contact action, or photocatalytic activity [71].…”

Section: Antibacterial and Antimicrobial Activitymentioning

confidence: 99%

Sol-Gel Applications in Textile Finishing Processes

Camlibel¹,

Arik²

2017

Recent Applications in Sol-Gel Synthesis

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In the chapter, sol-gel applications in textile finishing process such as flame retardancy, water, oil repellency, ultraviolet (UV) protection, self-cleaning, and antibacterial and antiwrinkle processes are reviewed. Sol-gel technology is well known in materials, metallurgy, ceramic, and glass industry since 1960 and has been researched in textile industry in the last decade. Sol-gel technology has some advantages when compared to conventional textile finishing process. Sol-gel technology, which is a method applied to the inorganic metal alkoxide or metal salts to organic textile materials, could impart the high, durable activity and multifunctional properties to different textile materials in the same bath at one step using low concentration of precursors. In addition, sol-gel technology presents alternatively economical, ecological, and environmental friendly process due to one-step application, using low concentration of chemicals, nonhalogenated chemicals, and nonformaldehyde release when compared to conventional processes.

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“…Some types of sol-gel systems also have bacteriostatic or antibacterial effects [16][17][18][19][20][21][22]. These systems are anatase-modified photoactive TiO2 coatings and sol-gel coatings with colloidal metals or metal compounds embedded in them, such as silver, silver salt, copper compound, zinc or quaternary ammonium salt [18], so sol-gel technology can be applied to textiles to develop various functional finishes with antibacterial [23][24][25][26][27][28][29][30][31][32], water repellent [33][34][35][36][37][38], superhydrophobic [39][40][41][42][43][44], oil/water separations [45][46][47][48][49][50][51][52][53], flame-retardant [54][55][56][57][58][59][60][61]…”

Section: Introductionmentioning

confidence: 99%

Progress in Sol-Gel Technology for the Coatings of Fabrics

et al. 2020

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The commercial availability of inorganic/organic precursors for sol-gel formulations is very high and increases day by day. In textile applications, the precursor-synthesized sol-gels along with functional chemicals can be deposited onto textile fabrics in one step by rolling, padding, dip-coating, spraying or spin coating. By using this technology, it is possible to provide fabrics with functional/multi-functional characteristics including flame retardant, anti-mosquito, water- repellent, oil-repellent, anti-bacterial, anti-wrinkle, ultraviolet (UV) protection and self-cleaning properties. These surface properties are discussed, describing the history, basic chemistry, factors affecting the sol-gel synthesis, progress in sol-gel technology along with various parameters controlling sol-gel technology. Additionally, this review deals with the recent progress of sol-gel technology in textiles in addressing fabric finishing, water repellent textiles, oil/water separation, flame retardant, UV protection and self-cleaning, self-sterilizing, wrinkle resistance, heat storage, photochromic and thermochromic color changes and the improvement of the durability and wear resistance properties.

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Antimicrobial Coatings Obtained by Sol–Gel Method

Cited by 6 publications

References 98 publications

Comparison of methods for determining the effectiveness of antibacterial functionalized textiles

Comparison of methods for determining the effectiveness of antibacterial functionalized textiles

Sol-Gel Applications in Textile Finishing Processes

Progress in Sol-Gel Technology for the Coatings of Fabrics

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