Antimicrobial finishing of wool fabrics using quaternary ammonium salts

Zhu, Ping; Sun, Gang

doi:10.1002/app.20563

Cited by 88 publications

(56 citation statements)

References 9 publications

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“…However, the contact danger of heavy metal ions with human skin and no affinity to textile fibers inhibit the application of such finishing agents. Organic antibacterial agents such as silicone quaternary ammonium salt and polyhexamethylene biguanide can bond with textile fibers and have been extensively used in recent years [11][12][13]. However, they still have some disadvantages involving microbial drug fastness, shorter effectiveness, poorer thermal stability and secondary pollution to environment.…”

Section: Introductionmentioning

confidence: 99%

“…The users of textile materials should be afforded protection for against bacteria, fungi and other related microorganisms for aesthetic, hygienic, or medical purposes by using various finishing techniques [3]. Inorganic, organic and natural antibacterial finishes have been applied on textile goods in recent years [4][5][6][7][8][9][10][11]. Inorganic antibacterial agents mainly refer to some metallic compounds based on metals like silver, copper and mercury, which could cause inhibition of the active centers of enzymes (inhibition of metabolism) in terms of control-release mechanism.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial functionalization of wool fabric via immobilizing lysozymes

Wang

Fan

et al. 2008

Bioprocess Biosyst Eng

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Greater attention has been given to enzymatic processes of textiles as effective alternatives to conventional chemical treatments because of the non-toxic and eco-friendly characteristics of enzymes as well as the increasingly important requirement for reducing pollution in textile production. A new functionalization method for wool fabrics based on immobilization of lysozymes was investigated in this paper. Wool fabric was first activated with glutaraldehyde, and then employed to covalently immobilize lysozymes. Main immobilization parameters were optimized in terms of the activity of immobilized enzyme. A high activity of the immobilized enzyme was obtained when the fabric was activated at 25 degrees C for 6 h in a bath containing with 0.2% of glutaraldehyde followed by the immobilization at 4 degrees C and pH 7.0 for 6 h with 5 g l(-1) lysozyme. The scanning electron microscopy and staining tests based on modified Coomassie protein assay (Bradford method) revealed that the lysozyme was fixed covalently on the wool fabric. Wool fabrics immobilizing lysozymes presented a higher ratio of bacteriostasis to Staphylococcus aureus. The durability of antibacterial wool was assessed and the lysozyme immobilized on wool fabric retained ca. 43% of its activity after five cycles of use when taking the activity of the immobilized lysozyme before using as reference.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antibacterial functionalization of wool fabric via immobilizing lysozymes

Wang

Fan

et al. 2008

Bioprocess Biosyst Eng

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“…Antimicrobial wool fabrics were prepared through ionic interactions between carboxylate groups in wool protein and, QAS or cetylpyridium chloride (CPC). The antimicrobial functions of CPC survived repeated washing with better durability 54) . A quaternary ammonium surfactant, N-dodecyl-N,N-dimethylglycine cysteamine hydrochloride (DABM), was used for wool fabrics.…”

Section: Quaternary Ammonium Compoundsmentioning

confidence: 99%

Antimicrobial Agents and Applications on Polymeric Materials

Lee¹

2008

Textile Coloration and Finishing

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Abstract-A wide variety of materials including aldehydes, cationic agents, alcohols, peroxygens, phenols and chlorinated phenols, metal ions are being employed as biocides. Among three levels for biocidal functions (sanitization, disinfection and sterilization), disinfection is an enough level for antimicrobial textiles. In terms of antimicrobial agents for textile applications, quaternary ammonium salts (QAS), chitosan, metal and metal salts, N-halamine based materials are developed with numerous research and the positive ions of those materials may result in disinfection of microorganisms. Photocatalysts, especially titanium dioxide (titania) produces the hydroxyl radical (․OH) which causes inactivation of microorganisms after UV radiation, have been used for antimicrobial applications.

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“…However, as a protein fiber, the wool fiber easily suffers degradation, skin irritation, and infection due to the generation and propagation of microorganisms under certain temperature and humidity. To overcome this weakness, some inorganic and organic antibacterial agents have been applied on wool goods, and positive results have been achieved [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Functionalization of Wool via mTGase-Catalyzed Grafting of ε-Poly-l-lysine

Wang

Jin

Fan

et al. 2009

Appl Biochem Biotechnol

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epsilon-Poly-L-lysine (epsilon-PL), a natural biomacromolecule having a broad spectrum of antibacterial activity, was grafted on the wool fiber via the acyl transfer reaction catalyzed by microbial transglutaminase (mTGase) to develop a new strategy for antibacterial functionalization of proteinous materials. The effects of the concentrations of epsilon-PLs and mTGases on the graft yields were investigated. A coating of epsilon-PL that almost completely covered the scale profile on the wool surface was visualized by scanning electron microscopy (SEM) and further demonstrated in terms of Allwörden's reaction characteristic of wool. Identifiable differences in lysine content and color depth among the stained wool samples reveal the changes in the surface composition and polarity caused by the incorporation of epsilon-PL onto the wool substrate, respectively. The ratio of bacteriostasis to Escherichia coli of the wool fabric grafting epsilon-PL reached 96.6 %, indicating an excellent antibacterial effect. The application of epsilon-PL and corresponding mTGase-catalyzed grafting reaction would provide a worthwhile reference for antibacterial functionalization of proteinous materials in various forms.

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Antimicrobial finishing of wool fabrics using quaternary ammonium salts

Cited by 88 publications

References 9 publications

Antibacterial functionalization of wool fabric via immobilizing lysozymes

Antibacterial functionalization of wool fabric via immobilizing lysozymes

Antimicrobial Agents and Applications on Polymeric Materials

Antibacterial Functionalization of Wool via mTGase-Catalyzed Grafting of ε-Poly-l-lysine

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