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Silver-nanoparticle-modified nanocellulose synthesized by pyroligneous acid: cytotoxicity towards HaCat cells.
Medeiros, Lúcio C D; Sant'Anna, Celso; Ferreira, Veronica S; Gasparotto, Luiz H S.
Afiliação
  • Medeiros LCD; Biological Chemistry and Chemometrics Research Group, Institute of Chemistry, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil.
  • Sant'Anna C; Laboratory of Biotechnology-Labio, National Institute of Metrology, Quality and technology-Inmetro, Duque de Caxias 25250-020, RJ, Brazil.
  • Ferreira VS; Laboratory of Biotechnology-Labio, National Institute of Metrology, Quality and technology-Inmetro, Duque de Caxias 25250-020, RJ, Brazil.
  • Gasparotto LHS; Biological Chemistry and Chemometrics Research Group, Institute of Chemistry, Federal University of Rio Grande do Norte, Natal 59072-970, RN, Brazil.
Nanotechnology ; 35(38)2024 Jul 02.
Article em En | MEDLINE | ID: mdl-38906121
ABSTRACT
In the present study, pyroligneous acid, also known as wood vinegar, has been employed as reducing and stabilizing agent in the synthesis of silver nanoparticles (AgNPs) anchored on nanocellulose (NC). The idea is to confer the latter bactericidal properties for its typical uses such as in cosmetics and food-packing. It has been demonstrated that AgNPs can be directly produced onto NC in one-pot fashion while dramatically enhancing the kinetics of AgNPs synthesis (2 h for reaction completion) in comparison to the NC-less counterpart (10 days for reaction completion). Furthermore, NC allowed for a narrower size distribution of AgNPs. NC-supported and non-supported AgNPs had sizes of 5.1 ± 1.6 nm and 16.7 ± 4.62 nm, respectively. Immortalized human keratinocytes (HaCat) cells were then employed as model to evaluate the cytotoxicity of the AgNPs-NC compound. The latter was found not to impact cell proliferation at any formulation, while decreasing the viability by only 6.8% after 72 h. This study contributes to the development of more environmentally benign routes to produce nanomaterials and to the understanding of their impact on cells.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Sobrevivência Celular / Celulose / Nanopartículas Metálicas / Células HaCaT Limite: Humans Idioma: En Revista: Nanotechnology Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Sobrevivência Celular / Celulose / Nanopartículas Metálicas / Células HaCaT Limite: Humans Idioma: En Revista: Nanotechnology Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido