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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 Gado de Corte. |
Data corrente: |
29/03/2004 |
Data da última atualização: |
29/03/2004 |
Autoria: |
OLIVEIRA, M. C. M.; SABATEL, V. de O.; PORTO, A. L.; MUDO, L. de O.; VALÉRIO, J. R. |
Título: |
Avaliação de danos causados por adultos da cigarrinha-das-pastagens Deois flavopicta (Stal 1854) (Homoptera: Cercopidae) na gramínea forrageira Paspalum atratum. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: ENCONTRO DE PESQUISA E INICIAÇÃO CIENTÍFICA DA UNIDERP, 2., 2000, Campo Grande. Anais... Campo Grande: Ed. UNIDERP, 2000. |
Páginas: |
p. 57-58. |
Idioma: |
Português |
Notas: |
CNPGC. |
Palavras-Chave: |
Avaliação; Damage; Evaluation; Paspalum atratum; Spittlebugs. |
Thesagro: |
Cigarrinha das Pastagens; Dano; Deois Flavopicta; Entomologia. |
Thesaurus NAL: |
Cercopidae; entomology. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00995naa a2200313 a 4500 001 1325502 005 2004-03-29 008 2000 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, M. C. M. 245 $aAvaliação de danos causados por adultos da cigarrinha-das-pastagens Deois flavopicta (Stal 1854) (Homoptera$bCercopidae) na gramínea forrageira Paspalum atratum. 260 $c2000 300 $ap. 57-58. 500 $aCNPGC. 650 $aCercopidae 650 $aentomology 650 $aCigarrinha das Pastagens 650 $aDano 650 $aDeois Flavopicta 650 $aEntomologia 653 $aAvaliação 653 $aDamage 653 $aEvaluation 653 $aPaspalum atratum 653 $aSpittlebugs 700 1 $aSABATEL, V. de O. 700 1 $aPORTO, A. L. 700 1 $aMUDO, L. de O. 700 1 $aVALÉRIO, J. R. 773 $tIn: ENCONTRO DE PESQUISA E INICIAÇÃO CIENTÍFICA DA UNIDERP, 2., 2000, Campo Grande. Anais... Campo Grande: Ed. UNIDERP, 2000.
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