Influence of the reaction time during the treatment of bacterial cellulose with sulfuric acid solution

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Havana-
Autor(es): dc.contributorInnovatecs Biotechnol Res & Dev-
Autor(es): dc.creatorRodriguez-Chanfrau, Jorge E. [UNESP]-
Autor(es): dc.creatorVeranes-Pantoja, Yaymarilis-
Autor(es): dc.creatorBasmaji, Pierre-
Autor(es): dc.creatorGuastaldi, Antonio C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:04:13Z-
Data de disponibilização: dc.date.available2022-02-22T00:04:13Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2019-10-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.33263/BRIAC95.301304-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/194897-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/194897-
Descrição: dc.descriptionBiomaterials are one of the most important parts of the medical device industry. Being used frequently in the development of Scaffolds for the tecidual regeneration. Bacterial cellulose is a biomaterial widely used in tissue regeneration. Due to its high content of hydrogen bonds, its crystallinity is high and its solubility is low, which makes its use difficult. Studies carried out with anteriority showed the modification suffered by bacterial cellulose treated with sulfuric acid solutions. The objective of this work was to study the influence of reaction time on crystallinity in the treatment of bacterial cellulose with sulfuric acid solution. Bacterial cellulose was modified by acid hydrolysis with sulfuric acid solutions of 48 or 64% for 60, 120 and 240 min. In all cases, the hydrolysed cellulose was washed with distilled water until pH 7, subsequently the cellulose was washed with ethanol and dried in an oven at 37 degrees C until a constant mass. The samples obtained were characterized by X-ray diffraction and the crystallinity index, the apparent crystallite size, the crystallite inner chains and the Z-discriminant function were determined. The results showed that the reaction time has a statistically significant influence on the crystallinity of bacterial cellulose.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionProducts Biotechnological LTDA, Sao Carlos - Sao Paulo, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Chem, Araraquara, Brazil-
Descrição: dc.descriptionUniv Havana, Ctr Biomat, Havana, Cuba-
Descrição: dc.descriptionInnovatecs Biotechnol Res & Dev, Sao Carlos, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Chem, Araraquara, Brazil-
Descrição: dc.descriptionCAPES: 186/13-
Descrição: dc.descriptionFAPESP: 2017/15487-3-
Formato: dc.format4301-4304-
Idioma: dc.languageen-
Publicador: dc.publisherBiointerface Research Applied Chemistry-
Relação: dc.relationBiointerface Research In Applied Chemistry-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectBacterial cellulose-
Palavras-chave: dc.subjectCrystallinity index-
Palavras-chave: dc.subjectAcid hydrolysis-
Palavras-chave: dc.subjectBiomaterials-
Palavras-chave: dc.subjectX-ray-
Título: dc.titleInfluence of the reaction time during the treatment of bacterial cellulose with sulfuric acid solution-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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