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Fast Fabrication of Multifunctional PCL/Curcumin Nanofibrous Membranes for Wound Dressings.
Teodoro, Kelcilene Bruna Ricardo; Alvarenga, Augusto Duarte; Rocha Oliveira, Luís Fernando; Marques Chagas, Paulo Augusto; Lopes, Raphael Guimarães; Andre, Rafaela da Silveira; Mercante, Luiza Amim; Alves, Fernanda; Stringasci, Mirian Denise; Buzza, Hilde Harb; Inada, Natalia Mayumi; Correa, Daniel Souza.
Afiliação
  • Teodoro KBR; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil.
  • Alvarenga AD; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil.
  • Rocha Oliveira LF; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil.
  • Marques Chagas PA; PPGBiotec, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil.
  • Lopes RG; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil.
  • Andre RDS; PPGBiotec, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil.
  • Mercante LA; São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil.
  • Alves F; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil.
  • Stringasci MD; Institute of Chemistry, Federal University of Bahia (UFBA), Salvador, Bahia 40170-280, Brazil.
  • Buzza HH; São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil.
  • Inada NM; São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil.
  • Correa DS; Institute of Physics, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
ACS Appl Bio Mater ; 6(6): 2325-2337, 2023 06 19.
Article em En | MEDLINE | ID: mdl-37265184
Therapeutic 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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Curcumina / Nanofibras / Anti-Infecciosos Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Revista: ACS Appl Bio Mater Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Curcumina / Nanofibras / Anti-Infecciosos Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Revista: ACS Appl Bio Mater Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos