polissacarídeos carregados de cobre - fibras de celulose com ações biocidas
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polissacarídeos carregados de cobre - fibras de celulose com ações biocidas

polissacarídeos carregados de cobre - fibras de celulose com ações biocidas


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About the Book

O presente trabalho descreve a síntese de fibras compostas de algodão com alginato de cobre-algodão e quitosana e uma investigação detalhada da ação antimicrobiana contra a bactéria modelo E.coli. As fibras foram preparadas por diferentes técnicas. As fibras resultantes foram investigadas quanto à sua ação biocida contra E. coli, usando inibição de zona e método de contagem de colônias. Finalmente, as fibras foram reduzidas com boro-hidreto de sódio para produzir fibras compostas carregadas com nanopartículas de cobre e investigadas quanto à ação biocida. Verificou-se que essas fibras possuíam tanto a boa resistência mecânica quanto a ação antibacteriana. Descobriu-se que a extensão da ação biocida depende da quantidade de Cu (II) carregado e da concentração de alginato nas fibras de algodão-celulose. As fibras apresentaram maior liberação de Cu (II) no fluido fisiológico em comparação com a água destilada. Fibras de alginato de cobre e celulose de algodão (CACC) apresentam boa resistência mecânica e liberam íons de cobre na presença de fluido fisiológico e solução de proteína. Essas fibras têm grande potencial para serem utilizadas como materiais de revestimento.


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Product Details
  • ISBN-13: 9786202764155
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Height: 229 mm
  • No of Pages: 60
  • Spine Width: 4 mm
  • Width: 152 mm
  • ISBN-10: 6202764155
  • Publisher Date: 22 Jan 2021
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 150 gr


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