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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/09/2023 |
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Data da última atualização: |
25/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GRIZZO, A.; SANTOS, D. M. dos; COSTA, V. P. V. da; LOPES, R. G.; INADA, N. M.; CORREA, D. S.; CAMPANA-FILHO, S. P. |
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Afiliação: |
Sao Carlos Institute of Chemistry/University of Sao Paulo; Nanotechnology National Laboratory for Agriculture (LNNA); Center for Exact Sciences and Technology, Federal University of Sao Carlos (UFSCar); Sao Carlos Institute of Physics/University of Sao Paulo; Sao Carlos Institute of Physics/University of Sao Paulo; DANIEL SOUZA CORREA, CNPDIA; CAMPANA-FILHO, S. P., Sao Carlos Institute of Chemistry/University of Sao Paulo. |
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Título: |
Multifunctional bilayer membranes composed of poly(lactic acid), beta-chitin whiskers and silver nanoparticles for wound dressing applications |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
International Journal of Biological Macromolecules, v. 251, 126314, 2023. |
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ISSN: |
0141-8130 |
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DOI: |
https://doi.org/10.1016/j.ijbiomac.2023.126314 |
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Idioma: |
Inglês |
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Conteúdo: |
Nanomaterial-based wound dressings have been extensively studied for the treatment of both minor and lifethreatening tissue injuries. These wound dressings must possess several crucial characteristics, such as tissue compatibility, non-toxicity, appropriate biodegradability to facilitate wound healing, effective antibacterial activity to prevent infection, and adequate physical and mechanical strength to withstand repetitive dynamic forces that could potentially disrupt the healing process. Nevertheless, the development of nanostructured wound dressings that incorporate various functional micro- and nanomaterials in distinct architectures, each serving specific purposes, presents significant challenges. In this study, we successfully developed a novel multifunctional wound dressing based on poly(lactic acid) (PLA) fibrous membranes produced by solution-blow spinning (SBS) and electrospinning. The PLA-based membranes underwent surface modifications aimed at tailoring their properties for utilization as effective wound dressing platforms. Initially, beta-chitin whiskers were deposited onto the membrane surface through filtration, imparting hydrophilic character. Afterward, silver nanoparticles (AgNPs) were incorporated onto the beta-chitin layer using a spray deposition method, resulting in platforms with antimicrobial properties against both Staphylococcus aureus and Escherichia coli. Cytotoxicity studies demonstrated the biocompatibility of the membranes with the neonatal human dermal fibroblast (HDFn) cell line. Moreover, bilayer membranes exhibited a high surface area and porosity (> 80%), remarkable stability in aqueous media, and favorable mechanical properties, making them promising candidates for application as multifunctional wound dressings. MenosNanomaterial-based wound dressings have been extensively studied for the treatment of both minor and lifethreatening tissue injuries. These wound dressings must possess several crucial characteristics, such as tissue compatibility, non-toxicity, appropriate biodegradability to facilitate wound healing, effective antibacterial activity to prevent infection, and adequate physical and mechanical strength to withstand repetitive dynamic forces that could potentially disrupt the healing process. Nevertheless, the development of nanostructured wound dressings that incorporate various functional micro- and nanomaterials in distinct architectures, each serving specific purposes, presents significant challenges. In this study, we successfully developed a novel multifunctional wound dressing based on poly(lactic acid) (PLA) fibrous membranes produced by solution-blow spinning (SBS) and electrospinning. The PLA-based membranes underwent surface modifications aimed at tailoring their properties for utilization as effective wound dressing platforms. Initially, beta-chitin whiskers were deposited onto the membrane surface through filtration, imparting hydrophilic character. Afterward, silver nanoparticles (AgNPs) were incorporated onto the beta-chitin layer using a spray deposition method, resulting in platforms with antimicrobial properties against both Staphylococcus aureus and Escherichia coli. Cytotoxicity studies demonstrated the biocompatibility of the membranes with the neonatal hu... Mostrar Tudo |
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Palavras-Chave: |
Beta-chitin whiskers; Biocompatible material; Electrospun nanofibers; Natural polymer; Solution blow spinning; Wound dressing. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02745naa a2200289 a 4500
001 2156857
005 2023-09-25
008 2023 bl uuuu u00u1 u #d
022 $a0141-8130
024 7 $ahttps://doi.org/10.1016/j.ijbiomac.2023.126314$2DOI
100 1 $aGRIZZO, A.
245 $aMultifunctional bilayer membranes composed of poly(lactic acid), beta-chitin whiskers and silver nanoparticles for wound dressing applications$h[electronic resource]
260 $c2023
520 $aNanomaterial-based wound dressings have been extensively studied for the treatment of both minor and lifethreatening tissue injuries. These wound dressings must possess several crucial characteristics, such as tissue compatibility, non-toxicity, appropriate biodegradability to facilitate wound healing, effective antibacterial activity to prevent infection, and adequate physical and mechanical strength to withstand repetitive dynamic forces that could potentially disrupt the healing process. Nevertheless, the development of nanostructured wound dressings that incorporate various functional micro- and nanomaterials in distinct architectures, each serving specific purposes, presents significant challenges. In this study, we successfully developed a novel multifunctional wound dressing based on poly(lactic acid) (PLA) fibrous membranes produced by solution-blow spinning (SBS) and electrospinning. The PLA-based membranes underwent surface modifications aimed at tailoring their properties for utilization as effective wound dressing platforms. Initially, beta-chitin whiskers were deposited onto the membrane surface through filtration, imparting hydrophilic character. Afterward, silver nanoparticles (AgNPs) were incorporated onto the beta-chitin layer using a spray deposition method, resulting in platforms with antimicrobial properties against both Staphylococcus aureus and Escherichia coli. Cytotoxicity studies demonstrated the biocompatibility of the membranes with the neonatal human dermal fibroblast (HDFn) cell line. Moreover, bilayer membranes exhibited a high surface area and porosity (> 80%), remarkable stability in aqueous media, and favorable mechanical properties, making them promising candidates for application as multifunctional wound dressings.
653 $aBeta-chitin whiskers
653 $aBiocompatible material
653 $aElectrospun nanofibers
653 $aNatural polymer
653 $aSolution blow spinning
653 $aWound dressing
700 1 $aSANTOS, D. M. dos
700 1 $aCOSTA, V. P. V. da
700 1 $aLOPES, R. G.
700 1 $aINADA, N. M.
700 1 $aCORREA, D. S.
700 1 $aCAMPANA-FILHO, S. P.
773 $tInternational Journal of Biological Macromolecules$gv. 251, 126314, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
02/02/2005 |
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Data da última atualização: |
02/02/2005 |
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Autoria: |
BARROS, A. T. M.; GOMES, A.; KOLLER, W. W.; RAVAGLIA, E.; SILVA, R. L. da; AVELLAR, W. de; ISMAEL, A. P. K.; GOMES, E. |
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Afiliação: |
Embrapa Pantanal (Corumbá, MS). |
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Título: |
Diagnóstico da ocorrência de resistência da mosca-dos-chifres a inseticidas no Estado de Mato Grosso do Sul. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: ENCONTRO DE CIÊNCIA E TECNOLOGIA EM MATO GROSSO DO SUL, 2., 2002, Campo Grande. Resumos... Campo Grande: Superintendência de Ciência e Tecnologia, 2002. |
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Páginas: |
p. 427-430. |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Conteúdo: |
O objetivo específico deste projeto é avaliar a susceptibilidade de populações da mosca-dos-chifres a inseticidas piretróides e organofosforados, em diferentes regiões no Estado de Mato Grosso do Sul. De forma mais abrangente, este estudo objetiva realizar um diagnóstico de resistência no Estado, o qual permitirá conhecer a situação em diferentes localidades e a identificação de regiões onde o problema esteja estabelecido ou em desenvolvimento. |
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Palavras-Chave: |
Brasil; Horn fly; Mato Grosso do Sul; Mosca-dos-chifres; Resistance to chemicals. |
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Thesagro: |
Haematobia Irritans; Inseticida; Resistência a Produtos Químicos; Sanidade Animal. |
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Thesaurus NAL: |
animal health; Brazil; insecticides. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01601naa a2200373 a 4500
001 1325743
005 2005-02-02
008 2002 bl uuuu u00u1 u #d
100 1 $aBARROS, A. T. M.
245 $aDiagnóstico da ocorrência de resistência da mosca-dos-chifres a inseticidas no Estado de Mato Grosso do Sul.
260 $c2002
300 $ap. 427-430.
500 $aCNPGC.
520 $aO objetivo específico deste projeto é avaliar a susceptibilidade de populações da mosca-dos-chifres a inseticidas piretróides e organofosforados, em diferentes regiões no Estado de Mato Grosso do Sul. De forma mais abrangente, este estudo objetiva realizar um diagnóstico de resistência no Estado, o qual permitirá conhecer a situação em diferentes localidades e a identificação de regiões onde o problema esteja estabelecido ou em desenvolvimento.
650 $aanimal health
650 $aBrazil
650 $ainsecticides
650 $aHaematobia Irritans
650 $aInseticida
650 $aResistência a Produtos Químicos
650 $aSanidade Animal
653 $aBrasil
653 $aHorn fly
653 $aMato Grosso do Sul
653 $aMosca-dos-chifres
653 $aResistance to chemicals
700 1 $aGOMES, A.
700 1 $aKOLLER, W. W.
700 1 $aRAVAGLIA, E.
700 1 $aSILVA, R. L. da
700 1 $aAVELLAR, W. de
700 1 $aISMAEL, A. P. K.
700 1 $aGOMES, E.
773 $tIn: ENCONTRO DE CIÊNCIA E TECNOLOGIA EM MATO GROSSO DO SUL, 2., 2002, Campo Grande. Resumos... Campo Grande: Superintendência de Ciência e Tecnologia, 2002.
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