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Ion-crosslinked wood-derived nanocellulose hydrogels with tunable antibacterial properties: Candidate materials for advanced wound care applications.
Basu, Alex; Heitz, Karen; Strømme, Maria; Welch, Ken; Ferraz, Natalia.
Afiliação
  • Basu A; Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden. Electronic address: alex.basu@angstrom.uu.se.
  • Heitz K; Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden. Electronic address: karen.heitz.2636@student.uu.se.
  • Strømme M; Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden. Electronic address: maria.stromme@angstrom.uu.se.
  • Welch K; Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden. Electronic address: ken.welch@angstrom.uu.se.
  • Ferraz N; Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Box 534, 751 21 Uppsala, Sweden. Electronic address: natalia.ferraz@angstrom.uu.se.
Carbohydr Polym ; 181: 345-350, 2018 Feb 01.
Article em En | MEDLINE | ID: mdl-29253982
ABSTRACT
Development of advanced dressings with antimicrobial properties for the treatment of infected wounds is an important approach in the fight against evolution of antibiotic resistant bacterial strains. Herein, the effects of ion-crosslinked nanocellulose hydrogels on bacteria commonly found in infected wounds were investigated in vitro. By using divalent calcium or copper ions as crosslinking agents, different antibacterial properties against the bacterial strains Staphylococcus epidermidis and Pseudomonas aeruginosa were obtained. Calcium crosslinked hydrogels were found to retard S. epidermidis growth (up to 266% increase in lag time, 36% increase in doubling time) and inhibited P. aeruginosa biofilm formation, while copper crosslinked hydrogels prevented S. epidermidis growth and were bacteriostatic towards P. aeruginosa (49% increase in lag time, 78% increase in doubling time). The wound dressing candidates furthermore displayed barrier properties towards both S. epidermidis and P. aeruginosa, hence making them interesting for further development of advanced wound dressings with tunable antibacterial properties.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Madeira / Cicatrização / Celulose / Hidrogéis / Reagentes de Ligações Cruzadas / Nanofibras / Antibacterianos Idioma: En Revista: Carbohydr Polym Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Madeira / Cicatrização / Celulose / Hidrogéis / Reagentes de Ligações Cruzadas / Nanofibras / Antibacterianos Idioma: En Revista: Carbohydr Polym Ano de publicação: 2018 Tipo de documento: Article