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Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon

In this work, chitosan (CS)/poly (vinyl alcohol) (PVA) nanofibers were prepared by using the electrospinning method. Different CS concentrations (0.5, 1, 2, and 3 wt %), maintaining the PVA concentration at 8 wt %, were tested. Likewise, the studied electrospinning experimental parameters were: syri...

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Autores principales: Sanchez-Alvarado, Diana Isela, Guzmán-Pantoja, Javier, Páramo-García, Ulises, Maciel-Cerda, Alfredo, Martínez-Orozco, Reinaldo David, Vera-Graziano, Ricardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6032221/
https://www.ncbi.nlm.nih.gov/pubmed/29890757
http://dx.doi.org/10.3390/ijms19061718
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author Sanchez-Alvarado, Diana Isela
Guzmán-Pantoja, Javier
Páramo-García, Ulises
Maciel-Cerda, Alfredo
Martínez-Orozco, Reinaldo David
Vera-Graziano, Ricardo
author_facet Sanchez-Alvarado, Diana Isela
Guzmán-Pantoja, Javier
Páramo-García, Ulises
Maciel-Cerda, Alfredo
Martínez-Orozco, Reinaldo David
Vera-Graziano, Ricardo
author_sort Sanchez-Alvarado, Diana Isela
collection PubMed
description In this work, chitosan (CS)/poly (vinyl alcohol) (PVA) nanofibers were prepared by using the electrospinning method. Different CS concentrations (0.5, 1, 2, and 3 wt %), maintaining the PVA concentration at 8 wt %, were tested. Likewise, the studied electrospinning experimental parameters were: syringe/collector distance, solution flow and voltage. Subsequently, the electrospun fibers were collected on a reticulated vitreous carbon (RVC) support for 0.25, 0.5, 1, 1.5, and 2 h. The morphology and diameter of the CS/PVA nanofibers were characterized by scanning electron microscopy (SEM), finding diameters in the order of 132 and 212 nm; the best results (uniform fibers) were obtained from the solution with 2 wt % of chitosan and a voltage, distance, and flow rate of 16 kV, 20 cm, and 0.13 mL/h, respectively. Afterwards, a treatment with an ethanolic NaOH solution was performed, observing a change in the fiber morphology and a diameter decrease (117 ± 9 nm).
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spelling pubmed-60322212018-07-13 Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon Sanchez-Alvarado, Diana Isela Guzmán-Pantoja, Javier Páramo-García, Ulises Maciel-Cerda, Alfredo Martínez-Orozco, Reinaldo David Vera-Graziano, Ricardo Int J Mol Sci Article In this work, chitosan (CS)/poly (vinyl alcohol) (PVA) nanofibers were prepared by using the electrospinning method. Different CS concentrations (0.5, 1, 2, and 3 wt %), maintaining the PVA concentration at 8 wt %, were tested. Likewise, the studied electrospinning experimental parameters were: syringe/collector distance, solution flow and voltage. Subsequently, the electrospun fibers were collected on a reticulated vitreous carbon (RVC) support for 0.25, 0.5, 1, 1.5, and 2 h. The morphology and diameter of the CS/PVA nanofibers were characterized by scanning electron microscopy (SEM), finding diameters in the order of 132 and 212 nm; the best results (uniform fibers) were obtained from the solution with 2 wt % of chitosan and a voltage, distance, and flow rate of 16 kV, 20 cm, and 0.13 mL/h, respectively. Afterwards, a treatment with an ethanolic NaOH solution was performed, observing a change in the fiber morphology and a diameter decrease (117 ± 9 nm). MDPI 2018-06-09 /pmc/articles/PMC6032221/ /pubmed/29890757 http://dx.doi.org/10.3390/ijms19061718 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sanchez-Alvarado, Diana Isela
Guzmán-Pantoja, Javier
Páramo-García, Ulises
Maciel-Cerda, Alfredo
Martínez-Orozco, Reinaldo David
Vera-Graziano, Ricardo
Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title_full Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title_fullStr Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title_full_unstemmed Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title_short Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
title_sort morphological study of chitosan/poly (vinyl alcohol) nanofibers prepared by electrospinning, collected on reticulated vitreous carbon
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6032221/
https://www.ncbi.nlm.nih.gov/pubmed/29890757
http://dx.doi.org/10.3390/ijms19061718
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