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| Gonçalves,Melissa Marques; Carneiro,Jaqueline; Justus,Barbara; Espinoza,Joel Toribio; Budel,Jane Manfron; Farago,Paulo Vitor; Paula,Josiane Padilha de. |
| Antibacterial activity and good mechanical properties are some of the characteristics required for an appropriate film dressing. A novel polymer blend was developed for wound healing application. Twenty-four formulations using the polymers chitosan, poly(vinyl alcohol) and/or ɛ-Polylysine and the plasticizer glycerol were designed using factorial design and then the films were prepared by the casting/solvent evaporation method. Seventeen films were obtained among the twenty-four proposed formulations that were characterized by Field Emission Scanning Electron Microscopy (FE-SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Mechanical properties, such as tensile strength (σ), elongation at break (ɛ) and Young’s modulus (Y) as well as antibacterial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chitosan; Poly(vinyl alcohol); Ɛ-Polylysine; Semi-occlusive dressing. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100631 |
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| Espinoza,Joel Toribio; Novak,Robson Schimandeiro; Magalhães,Cássia Gonçalves; Budel,Jane Manfron; Justus,Barbara; Gonçalves,Melissa Marques; Boscardin,Patricia Mathias Döll; Farago,Paulo Vitor; Paula,Josiane de Fátima Padiha De. |
| The objective of this work was to develop and characterize liposomes loaded with silver nanoparticles (LAgNPs) to show improvement in stability characteristics. AgNPs were prepared by the green synthesis method with Aloe vera gel extract and exposure to sunlight. Liposomes were prepared by the modified reverse phase method. Particle size, polydispersity index, zeta potential, as well as the scanning electron microscopy (SEM) morphological aspects of AgNPs and LAgNPs were evaluated. In addition, was used flame atomic absorption spectroscopy to determine the amount of AgNP that was encapsulated in liposomes. The AgNPs presented as amorphous and polydisperse structures, with a mean diameter of 278.46 nm and zeta potential of -18.3 mV. LAgNPs had a mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Silver nanoparticles; Aloe vera; Sunlight; Liposomes. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100625 |
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