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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
20/06/2022 |
Data da última atualização: |
20/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BORGES, F. A.; DRAGO, B. C.; BAGGIO, L. O.; BARROS, N. R. de; BRASIL, G. S. P.; SCONTRI, M.; MUSSAGY, C. U.; RIBEIRO, M. C. S.; MILORI, D. M. B. P.; MORAIS, C. P. de; MARANGONI, B. S.; NICOLODELLI, G.; MECWAN, M.; MANDAL, K.; GUERRA, N. B.; MENEGATTI, C. R.; HERCULANO, R. D. |
Afiliação: |
DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
Título: |
Metronidazole-loaded gold nanoparticles in natural rubber latex as a potential wound dressing. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
International Journal of Biological Macromolecules, v. 211, 2022. |
Páginas: |
568?579 |
ISSN: |
0141-8130 |
DOI: |
https://doi.org/10.1016/j.ijbiomac.2022.05.025 |
Idioma: |
Inglês |
Conteúdo: |
Gold nanoparticles (AuNPs) have shown interesting properties and specific biofunctions, providing benefits and new opportunities for controlled release systems. In this research, we demonstrated the use of natural rubber latex (NRL) from Hevea brasiliensis as a carrier of AuNPs and the antibiotic metronidazole (MET). We prepared AuNP-MET-NRL and characterized by physicochemical, biological and in vitro release assays. The effect of AuNPs on MET release was evaluated using UV?Vis and Laser-Induced Breakdown Spectroscopy (LIBS) techniques. AuNPs synthesized by Turkevich and Frens method resulted in a spherical shape with diameters of 34.8 ± 5.5 nm. We verified that there was no emergence or disappearance of new vibrational bands. Qualitatively and quantitatively, we showed that the MET crystals dispersed throughout the NRL. The Young's modulus and elongation values at dressing rupture were in the range appropriate for human skin application. 64.70% of the AuNP-MET complex was released within 100 h, exhibiting a second-order exponential release profile. The LIBS technique allowed monitoring of the AuNP release, indicating the Au emission peak reduction at 267.57 nm over time. Moreover, the dressing displayed an excellent hemocompatibility and fibroblast cell viability. These results demonstrated that the AuNP-MET-NRL wound dressing is a promising approach for dermal applications |
Palavras-Chave: |
Gold nanoparticles; LIBS; Sustained release. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02515naa a2200385 a 4500 001 2144181 005 2022-06-20 008 2022 bl uuuu u00u1 u #d 022 $a0141-8130 024 7 $ahttps://doi.org/10.1016/j.ijbiomac.2022.05.025$2DOI 100 1 $aBORGES, F. A. 245 $aMetronidazole-loaded gold nanoparticles in natural rubber latex as a potential wound dressing.$h[electronic resource] 260 $c2022 300 $a568?579 520 $aGold nanoparticles (AuNPs) have shown interesting properties and specific biofunctions, providing benefits and new opportunities for controlled release systems. In this research, we demonstrated the use of natural rubber latex (NRL) from Hevea brasiliensis as a carrier of AuNPs and the antibiotic metronidazole (MET). We prepared AuNP-MET-NRL and characterized by physicochemical, biological and in vitro release assays. The effect of AuNPs on MET release was evaluated using UV?Vis and Laser-Induced Breakdown Spectroscopy (LIBS) techniques. AuNPs synthesized by Turkevich and Frens method resulted in a spherical shape with diameters of 34.8 ± 5.5 nm. We verified that there was no emergence or disappearance of new vibrational bands. Qualitatively and quantitatively, we showed that the MET crystals dispersed throughout the NRL. The Young's modulus and elongation values at dressing rupture were in the range appropriate for human skin application. 64.70% of the AuNP-MET complex was released within 100 h, exhibiting a second-order exponential release profile. The LIBS technique allowed monitoring of the AuNP release, indicating the Au emission peak reduction at 267.57 nm over time. Moreover, the dressing displayed an excellent hemocompatibility and fibroblast cell viability. These results demonstrated that the AuNP-MET-NRL wound dressing is a promising approach for dermal applications 653 $aGold nanoparticles 653 $aLIBS 653 $aSustained release 700 1 $aDRAGO, B. C. 700 1 $aBAGGIO, L. O. 700 1 $aBARROS, N. R. de 700 1 $aBRASIL, G. S. P. 700 1 $aSCONTRI, M. 700 1 $aMUSSAGY, C. U. 700 1 $aRIBEIRO, M. C. S. 700 1 $aMILORI, D. M. B. P. 700 1 $aMORAIS, C. P. de 700 1 $aMARANGONI, B. S. 700 1 $aNICOLODELLI, G. 700 1 $aMECWAN, M. 700 1 $aMANDAL, K. 700 1 $aGUERRA, N. B. 700 1 $aMENEGATTI, C. R. 700 1 $aHERCULANO, R. D. 773 $tInternational Journal of Biological Macromolecules$gv. 211, 2022.
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Embrapa Instrumentação (CNPDIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
17/08/2009 |
Data da última atualização: |
20/03/2015 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
MACHADO, E. B.; SANTOS, A. F. dos; LAVORANTI, O. J.; TESSMANN, D. J. |
Título: |
Caracterização morfo-fisiológica de Septoria musiva do álamo. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Fitopatologia Brasileira, v. 31, (supl.), p. 122, ago. 2006. Edição dos Resumos do 39º Congresso Brasileiro de Fitopatologia, 2006, Salvador. |
Idioma: |
Português |
Notas: |
Resumo 0002. |
Palavras-Chave: |
Álamo; Característica morfo fisiológica; Septoria musiva. |
Thesagro: |
Doença de Planta; Populus spp. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00713naa a2200217 a 4500 001 1316103 005 2015-03-20 008 2006 bl --- 0-- u #d 100 1 $aMACHADO, E. B. 245 $aCaracterização morfo-fisiológica de Septoria musiva do álamo. 260 $c2006 500 $aResumo 0002. 650 $aDoença de Planta 650 $aPopulus spp 653 $aÁlamo 653 $aCaracterística morfo fisiológica 653 $aSeptoria musiva 700 1 $aSANTOS, A. F. dos 700 1 $aLAVORANTI, O. J. 700 1 $aTESSMANN, D. J. 773 $tFitopatologia Brasileira$gv. 31, (supl.), p. 122, ago. 2006. Edição dos Resumos do 39º Congresso Brasileiro de Fitopatologia, 2006, Salvador.
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