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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
05/07/2023 |
Data da última atualização: |
15/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TEODORO, K. B. R.; ALVARENGA, A. D.; OLIVEIRA, L. F. R.; CHAGAS, P. A. M.; LOPES. R. G.; ANDRE, R. S.; MERCANTE, L. A.; ALVES, F.; STRINGASCI, M. D.; BUZZA, H. H.; INADA, N. M.; CORREA, D. S. |
Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
Título: |
Fast Fabrication of Multifunctional PCL/Curcumin Nanofibrous Membranes for Wound Dressings. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
ACS Applied Bio Materials, v. 6, 2023. |
Páginas: |
2325–2337 |
DOI: |
https://doi.org/10.1021/acsabm.3c00177 |
Idioma: |
Inglês |
Conteúdo: |
herapeutic intervention to skin wounds requires covering the affected area with wound dressings. Interdisciplinary efforts have focused on the development of smart bandages that can perform multiple functions. In this direction, here, we designed a low cost (U$0.012 per cm2 ) multifunctional therapeutic wound dressing fabricated by loading curcumin (CC) into poly(ϵ-caprolactone) (PCL) nanofibers using solution blow spinning (SBS). The freestanding PCL/CC bandages were characterized by distinct physicochemical approaches and were successful in performing varied functions, including controlled release of CC, colorimetric indication of the wound conditions, barrier against microorganisms, being biocompatible, and providing a photosensitive platform for antimicrobial photodynamic therapy (aPDT). The chemical nature of PCL and CC and the interactions between these components allowed CC to be released for 192 h (ca. 8 days), which could be correlated with the Korsmeyer−Peppas model, with a burst release suitable to treat the inflammatory phase. Due to the CC keto−enol tautomerism, an optical indication of the healing status could be obtained using PCL/CC, which occurred immediately, ranging between red/orange and yellow shades. The effect against pathogenic microorganisms evaluated by agar disc-diffusion, affected skin wound simulation (ex vivo), and microbial penetration tests demonstrated the ability to block and inhibit microbial permeation in different environments. The biocompatibilities of PCL and PCL/CC were verified by in vitro cytotoxicity study, which demonstrated that cell viabilities average above 94 and 96% for human dermal fibroblasts. In addition, the proposed bandage responded to aPDT applied to an in vivo assay, showing that, when irritated, PCL/CC was able to reduce the bacteria present on the real wound of mice. In summary, our findings demonstrate that using PCL and CC to produce nonwovens by the SBS technique offers potential for the rapid fabrication of biocompatible and multifunctional wound dressings, paving the way for large-scale production and utilization of such dressings in the treatment of skin wounds. Menosherapeutic intervention to skin wounds requires covering the affected area with wound dressings. Interdisciplinary efforts have focused on the development of smart bandages that can perform multiple functions. In this direction, here, we designed a low cost (U$0.012 per cm2 ) multifunctional therapeutic wound dressing fabricated by loading curcumin (CC) into poly(ϵ-caprolactone) (PCL) nanofibers using solution blow spinning (SBS). The freestanding PCL/CC bandages were characterized by distinct physicochemical approaches and were successful in performing varied functions, including controlled release of CC, colorimetric indication of the wound conditions, barrier against microorganisms, being biocompatible, and providing a photosensitive platform for antimicrobial photodynamic therapy (aPDT). The chemical nature of PCL and CC and the interactions between these components allowed CC to be released for 192 h (ca. 8 days), which could be correlated with the Korsmeyer−Peppas model, with a burst release suitable to treat the inflammatory phase. Due to the CC keto−enol tautomerism, an optical indication of the healing status could be obtained using PCL/CC, which occurred immediately, ranging between red/orange and yellow shades. The effect against pathogenic microorganisms evaluated by agar disc-diffusion, affected skin wound simulation (ex vivo), and microbial penetration tests demonstrated the ability to block and inhibit microbial permeation in different enviro... Mostrar Tudo |
Palavras-Chave: |
Natural dye; Optical sensor; Photodynamic therapy; Solution blow spinning; Wound dressing. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03154naa a2200337 a 4500 001 2154815 005 2024-01-15 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1021/acsabm.3c00177$2DOI 100 1 $aTEODORO, K. B. R. 245 $aFast Fabrication of Multifunctional PCL/Curcumin Nanofibrous Membranes for Wound Dressings.$h[electronic resource] 260 $c2023 300 $a2325–2337 520 $aherapeutic intervention to skin wounds requires covering the affected area with wound dressings. Interdisciplinary efforts have focused on the development of smart bandages that can perform multiple functions. In this direction, here, we designed a low cost (U$0.012 per cm2 ) multifunctional therapeutic wound dressing fabricated by loading curcumin (CC) into poly(ϵ-caprolactone) (PCL) nanofibers using solution blow spinning (SBS). The freestanding PCL/CC bandages were characterized by distinct physicochemical approaches and were successful in performing varied functions, including controlled release of CC, colorimetric indication of the wound conditions, barrier against microorganisms, being biocompatible, and providing a photosensitive platform for antimicrobial photodynamic therapy (aPDT). The chemical nature of PCL and CC and the interactions between these components allowed CC to be released for 192 h (ca. 8 days), which could be correlated with the Korsmeyer−Peppas model, with a burst release suitable to treat the inflammatory phase. Due to the CC keto−enol tautomerism, an optical indication of the healing status could be obtained using PCL/CC, which occurred immediately, ranging between red/orange and yellow shades. The effect against pathogenic microorganisms evaluated by agar disc-diffusion, affected skin wound simulation (ex vivo), and microbial penetration tests demonstrated the ability to block and inhibit microbial permeation in different environments. The biocompatibilities of PCL and PCL/CC were verified by in vitro cytotoxicity study, which demonstrated that cell viabilities average above 94 and 96% for human dermal fibroblasts. In addition, the proposed bandage responded to aPDT applied to an in vivo assay, showing that, when irritated, PCL/CC was able to reduce the bacteria present on the real wound of mice. In summary, our findings demonstrate that using PCL and CC to produce nonwovens by the SBS technique offers potential for the rapid fabrication of biocompatible and multifunctional wound dressings, paving the way for large-scale production and utilization of such dressings in the treatment of skin wounds. 653 $aNatural dye 653 $aOptical sensor 653 $aPhotodynamic therapy 653 $aSolution blow spinning 653 $aWound dressing 700 1 $aALVARENGA, A. D. 700 1 $aOLIVEIRA, L. F. R. 700 1 $aCHAGAS, P. A. M. 700 1 $aLOPES. R. G. 700 1 $aANDRE, R. S. 700 1 $aMERCANTE, L. A. 700 1 $aALVES, F. 700 1 $aSTRINGASCI, M. D. 700 1 $aBUZZA, H. H. 700 1 $aINADA, N. M. 700 1 $aCORREA, D. S. 773 $tACS Applied Bio Materials$gv. 6, 2023.
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Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
17/03/2014 |
Data da última atualização: |
17/03/2014 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SOZO, J. S.; COSTA, A. M.; CELESTINO, S. M. C.; MADALENA, J. O. de M.; CARDOSO, E. R.; CAMPOS, G. A.; FIGUEIRA, G. M.; SILVA, J. R. da; PEREIRA, R. de C. A.; VIANA, A. M. |
Afiliação: |
J. S. SOZO, UFSC; ANA MARIA COSTA, CPAC; SONIA MARIA COSTA CELESTINO, CPAC; JOSE ORLANDO DE MELO MADALENA, CPAC; ELIANE RIBEIRO CARDOSO; GUSTAVO AZEVEDO CAMPOS, CNPASA; GLYN MARA FIGUEIRA, UNICAMP; JOSÉ RAFAEL DA SILVA; RITA DE CASSIA ALVES PEREIRA, CNPAT; ANA MARIA VIANA, UFSC. |
Título: |
Teores de polifenóis e flavonóides em amostras de P. tenuifila cultivadas em diferentes regiões brasileiras. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DOS ALIMENTOS, 10., 2013, Campinas. Ciência de alimentos: impacto na nutrição e saúde: anais... Campinas: Unicamp, 2013. |
Páginas: |
p. 1278. |
Idioma: |
Português |
Conteúdo: |
Para orientar a cadeia produtiva, o trabalho objetivou avaliar a influência das regiões de plantio de maracujá alho sobre a biossíntese desses compostos. Para tanto, foram determinados os teores de polifenóis e flavonóides, pelos métodos espectrofotométricos de frutos de P.tenuifila, processados inteiros (POP-CPAC, 2012), cultivados e colhidos em MG(outubro), TO(janeiro), SP(maio), CE(julho) e DF(março), safra 2011. |
Palavras-Chave: |
Brasil; Maracujá alho; Passiflora tenuifila; Polifenóis; Polifenol oxidase. |
Thesagro: |
Flavonóide; Maracujá. |
Thesaurus NAL: |
Brazil; Flavonoids; Passion fruits; Polyphenols. |
Categoria do assunto: |
Q Alimentos e Nutrição Humana |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/95949/1/12617.pdf
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Marc: |
LEADER 01586naa a2200373 a 4500 001 1982510 005 2014-03-17 008 2013 bl uuuu u00u1 u #d 100 1 $aSOZO, J. S. 245 $aTeores de polifenóis e flavonóides em amostras de P. tenuifila cultivadas em diferentes regiões brasileiras.$h[electronic resource] 260 $c2013 300 $ap. 1278. 520 $aPara orientar a cadeia produtiva, o trabalho objetivou avaliar a influência das regiões de plantio de maracujá alho sobre a biossíntese desses compostos. Para tanto, foram determinados os teores de polifenóis e flavonóides, pelos métodos espectrofotométricos de frutos de P.tenuifila, processados inteiros (POP-CPAC, 2012), cultivados e colhidos em MG(outubro), TO(janeiro), SP(maio), CE(julho) e DF(março), safra 2011. 650 $aBrazil 650 $aFlavonoids 650 $aPassion fruits 650 $aPolyphenols 650 $aFlavonóide 650 $aMaracujá 653 $aBrasil 653 $aMaracujá alho 653 $aPassiflora tenuifila 653 $aPolifenóis 653 $aPolifenol oxidase 700 1 $aCOSTA, A. M. 700 1 $aCELESTINO, S. M. C. 700 1 $aMADALENA, J. O. de M. 700 1 $aCARDOSO, E. R. 700 1 $aCAMPOS, G. A. 700 1 $aFIGUEIRA, G. M. 700 1 $aSILVA, J. R. da 700 1 $aPEREIRA, R. de C. A. 700 1 $aVIANA, A. M. 773 $tIn: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DOS ALIMENTOS, 10., 2013, Campinas. Ciência de alimentos: impacto na nutrição e saúde: anais... Campinas: Unicamp, 2013.
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