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Production and characterization of a nanocomposite of highly crystalline nanowhiskers from biologically extracted chitin in enzymatic poly(ε-caprolactone).
Espadín, Andres; De Dios, Lenin Tamay; Ruvalcaba, Erika; Valadez-García, Josefina; Velasquillo, Cristina; Bustos-Jaimes, Ismael; Vázquez-Torres, Humberto; Gimeno, Miquel; Shirai, Keiko.
Afiliação
  • Espadín A; Universidad Autonoma Metropolitana, Biotechnology Department, Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Av. San Rafael Atlixco No. 186, Iztapalapa, 09340, Mexico City, Mexico.
  • De Dios LT; Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación, Ciudad de Mexico, Mexico.
  • Ruvalcaba E; Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación, Ciudad de Mexico, Mexico.
  • Valadez-García J; Depto. de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico.
  • Velasquillo C; Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación, Ciudad de Mexico, Mexico.
  • Bustos-Jaimes I; Depto. de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico.
  • Vázquez-Torres H; Universidad Autonoma Metropolitana, Biotechnology Department, Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Av. San Rafael Atlixco No. 186, Iztapalapa, 09340, Mexico City, Mexico.
  • Gimeno M; Depto. De Alimentos y Biotecnología, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico. Electronic address: mgimeno@unam.mx.
  • Shirai K; Universidad Autonoma Metropolitana, Biotechnology Department, Laboratory of Biopolymers and Pilot Plant of Bioprocessing of Agro-Industrial and Food By-Products, Av. San Rafael Atlixco No. 186, Iztapalapa, 09340, Mexico City, Mexico. Electronic address: smk@xanum.uam.mx.
Carbohydr Polym ; 181: 684-692, 2018 Feb 01.
Article em En | MEDLINE | ID: mdl-29254023
A nano-composite from biologically obtained chitin nanofillers homogenously dispersed in a poly(ε-caprolactone) matrix was successfully achieved by an ultrasonication-assisted non-toxic and non-aqueous methodology. For this purpose, biological chitin was obtained from lactic acid fermentation of shrimp wastes and converted into chitin whiskers by acidic hydrolysis in a novel process at low temperature (4°C) that enhanced the distribution and yield. Additionally, the polyester matrix was enzymatically produced in a non-toxic compressed fluid (1,1,1,2-tetrafluoroethane at 25bar and 65°C) medium. The homogeneous distribution of the nanofiller in the matrix was corroborated by confocal and atomic force microscopies. Films of the nanocomposite were physicochemically characterized to assess its adequate properties. Additionally, the qualitative viability of human fibroblasts and osteoblasts cells was studied on the produced nanocomposite films showing good biocompatibility.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poliésteres / Quitina / Nanocompostos / Nanopartículas Tipo de estudo: Qualitative_research Limite: Adult / Animals / Child / Humans Idioma: En Revista: Carbohydr Polym Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poliésteres / Quitina / Nanocompostos / Nanopartículas Tipo de estudo: Qualitative_research Limite: Adult / Animals / Child / Humans Idioma: En Revista: Carbohydr Polym Ano de publicação: 2018 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido