Antimicrobial finishing of cotton fabrics based on gamma irradiated carboxymethyl cellulose/poly(vinyl alcohol)/TiO<sub>2</sub>nanocomposites

Khafaga, Mervat R.; Ali, Hussein E.; El‐Naggar, Abdel Wahab M.

doi:10.1080/00405000.2015.1061762

Cited by 21 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Antibacterial modification of polymers needs not only a simple and general method but also efficient biocides. N -Halamine, − quaternary ammonia salt (QAS), ,− and heavy-metal ions − have been proven to be powerful antibacterial compounds. Integration of these compounds to polymeric chain increases stability, lowers toxicity, and enhances biocidal efficacy.…”

Section: Introductionmentioning

confidence: 99%

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Chen

Ren

et al. 2017

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Antibacterial modification of polymers with potent biocides via an efficient and universal approach is very desirable in both academia and industry. A polysiloxane with both quaternary ammonium and N-chloramine was prepared via a facile three-step synthetic route. Poly(methylhydrosiloxane) (PMHS) was first reacted with 2-(dimethylamino)ethyl acrylate to introduce an ending tertiary amine that was subsequently quaternized with 3-(3-chloropropyl)-5,5-dimethylhydantoin (CPDMH). The 5,5-dimethylhydantoin moiety was then transformed into its N-chloramine counterparts by chlorination with tert-butyl hypochlorite to produce quaternary ammonium (quat)/N-chloramine polysiloxane. The CO2-philic quat/N-chloramine polysiloxane was interpenetrated into polyethylene terephthalate (PET) in supercritical carbon dioxide (scCO2) and formed a 70 nm biocidal layer. The synthetic procedures and interpenetration results were characterized with Fourier transform infrared spectroscopy (FTIR), 1H NMR, scanning electron microscopy (SEM), and X-ray photoelectron spectrocsopy (XPS). The incorporation of quaternary ammonium and N-chloramine exhibited improved synergetic biocidal performance against Staphylococcus aureus and Escherichia coli, providing a complete kill of a 7-log reduction of both species within a contact time of 10 min. The polysiloxane interpenetration layer was stable and the rechargeability of lost chlorine was good when the layer was subjected to repeated washing, storage, and UV irradiation. This modification procedure uses ecologically responsible CO2 as solvent and is expected to be applicable to substrates of other chemistry since it does not rely on chemical linkage.

show abstract

Section: Introductionmentioning

confidence: 99%

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Chen

Ren

et al. 2017

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…54 Herein, the incorporated TiO 2 :Mn NPs upon exposure to sunlight lead to the production of oxidative radicals (OH • ) and super oxides (O 2 − ), which in turn cause oxidative stress in bacteria, perforation of the cell membrane, elimination of intracellular components and ultimately cell death. 54,55 Nevertheless, this precedence order in favor of Gram-negative bacteria, may be reversed being subject to the operating conditions and to the specific bacterial species used in each case. 56 It is important to note that the NPs50W sample (after 10 washing cycles) demonstrates more than 96% reduction of K. pneumoniae bacteria after 120 min (Figure 6b).…”

mentioning

confidence: 99%

Fabrication of Visible Light-Induced Antibacterial and Self-Cleaning Cotton Fabrics Using Manganese Doped TiO₂Nanoparticles

Zahid¹,

Papadopoulou²,

Suarato³

et al. 2018

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Ordinary textiles are very often malodorous and the origin of cross-infection. Their microclimate, consisting of moisture, contaminants, and sweat, provides favorable conditions for microbial growth. Therefore, simple approaches of surface modification using functional materials are widely adopted to introduce antibacterial properties. This study reports a simple and low cost technique that renders cotton fabrics antibacterial. Manganese (Mn)-doped photocatalytic titanium dioxide (TiO2) nanoparticles of ∼150 nm average diameter have been prepared by sol gel and applied on textile fabrics using a silicone binder. The treated fabrics displayed 100% reduction of Staphylococcus aureus (Gram-positive) and Klebsiella pneumoniae (Gram-negative) populations within 120 min under sunlight, demonstrating first order of reduction kinetics. Moreover, the functionalized fabrics demonstrated complete degradation of a methylene blue (MB) dye adsorbed on their surface, under both UV and visible light irradiation, turning them white. A similar effect was observed when the treated fabrics were immersed in a MB dye solution and subsequently irradiated. Here, the cotton fabrics functionalized with Mn-doped TiO2 nanoparticles were able to discolour the dissolved MB dye, demonstrating a water purification effect. In addition, the modified fabrics were resistant to several laundry cycles. Physical properties like mechanical strength, color, breathability, and aesthetic of the treated cotton fabrics remained unchanged. The modified cotton fabrics can be envisioned as antibacterial, antiodorous, and self-cleaning textiles for sports, medical uses, uniforms, fashion, home furnishing, and leisure activities. Finally, the treated textiles were found to be biocompatible.

show abstract

“…. The results showed that the thermal stability of cotton fabric loaded with PVA/ZnO nanocomposite was changed with slightly increases, accompanied with decreasing in the thermal decomposition rate due to the presence of the strong intermolecular bonding between the crosslinkable PVA encapsulating ZnO nanocomposite upon the impregnated fabric . For all samples, it can be notice that the thermal decomposition showed three stages decomposition pattern, the first noticeable change was observed from 100°C to 120°C as a result of the dehydration of cellulose .…”

Section: Resultsmentioning

confidence: 93%

Antibacterial Activity of Cotton Fabrics Treated With Poly (Vinyl Alcohol)/ZnO Nanocomposites, Photocatalyzed by UV Irradiation

Hassan

Ali

2017

Vinyl Additive Technology

Self Cite

View full text Add to dashboard Cite

Cotton fabrics with antimicrobial properties were prepared by treatment with aqueous solutions of poly vinyl alcohol/zinc oxide (PVA/ZnO) nanocomposites and subsequently exposed to UV radiation. The ZnO nanoparticles, PVA/ZnO nanocomposite films, and treated cotton fabrics were characterized by transmission electron microscopy, Fourier transform infrared, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The antibacterial finishing of the treated cotton fabrics was evaluated toward gram-positive and gram-negative bacteria. J. VINYL ADDIT. FIG. 3. The X-ray diffraction patterns of pure poly vinyl alcohol and poly vinyl alcohol/zinc oxide nanocomposite films. FIG. 4. Scanning electron microscopy of (a) untreated cotton fabrics, (b) poly vinyl alcohol/zinc oxide nanocomposite treated samples.

show abstract

Antimicrobial finishing of cotton fabrics based on gamma irradiated carboxymethyl cellulose/poly(vinyl alcohol)/TiO₂nanocomposites

Cited by 21 publications

References 26 publications

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Fabrication of Visible Light-Induced Antibacterial and Self-Cleaning Cotton Fabrics Using Manganese Doped TiO₂Nanoparticles

Antibacterial Activity of Cotton Fabrics Treated With Poly (Vinyl Alcohol)/ZnO Nanocomposites, Photocatalyzed by UV Irradiation

Contact Info

Product

Resources

About

Antimicrobial finishing of cotton fabrics based on gamma irradiated carboxymethyl cellulose/poly(vinyl alcohol)/TiO2nanocomposites

Cited by 21 publications

References 26 publications

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO2

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO2

Fabrication of Visible Light-Induced Antibacterial and Self-Cleaning Cotton Fabrics Using Manganese Doped TiO2Nanoparticles

Antibacterial Activity of Cotton Fabrics Treated With Poly (Vinyl Alcohol)/ZnO Nanocomposites, Photocatalyzed by UV Irradiation

Contact Info

Product

Resources

About

Antimicrobial finishing of cotton fabrics based on gamma irradiated carboxymethyl cellulose/poly(vinyl alcohol)/TiO₂nanocomposites

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO₂

Fabrication of Visible Light-Induced Antibacterial and Self-Cleaning Cotton Fabrics Using Manganese Doped TiO₂Nanoparticles