Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/10000
Título: Chitosan: antimicrobial action upon staphylococci after impregnation onto cotton fabric
Autor: Tavaria, Freni
Soares, J. C.
Reis, I. L.
Paulo, M. H.
Xavier, Malcata F.
Pintado, M. E.
Palavras-chave: Atopic dermatitis
Functional textiles
Data: 2012
Editora: The Society for Applied Microbiology
Citação: TAVARIA, Freni ...[et al] - Chitosan: antimicrobial action upon staphylococci after impregnation onto cotton fabric. Journal of Applied Microbiology. ISSN 1364-5072. Volume 112, n.º 5, (2012), p. 1034–1041
Resumo: Background: High levels of viable Staphylococcus aureus, which are often found on inflamed skin surfaces, are usually associated with atopic dermatitis. Textiles, owing to their high specific surface area and intrinsic hydrophilicity, retain moisture while also providing excellent environmental conditions for microbial growth and proliferation. Recently, a number of chemicals have been added to textiles, so as to confer antimicrobial activity. Aims: To evaluate the antimicrobial action of chitosan upon selected skin staphylococci. Methods and Results: We isolated staphylococci from normal skin of 24 volunteers and studied their survival upon contact with chitosan-impregnated cotton fabric. Low and high molecular weight chitosans were used at two concentrations; all four did effectively reduce the growth of some staphylococci (namely Staph. aureus), by up to 5 log cycles, thus unfolding a potential towards control and even prevention of related skin disorders. Conclusion: Our data suggest an effective, but selective antibacterial action of chitosans towards skin bacteria. Significance and Impact of the Study: The possibility to use a natural biopolymer incorporated in a textile to alleviate and even treat some of the symptoms associated with this skin condition may raise an alternative to existing medical treatments. The selectivity observed prevents full elimination of bacteria from the skin surface, which is an advantage.
Peer review: yes
URI: http://hdl.handle.net/10400.14/10000
Versão do Editor: DOI: 10.1111/j.1365-2672.2012.05274.x
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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