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Article

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

by
Diana Isela Sanchez-Alvarado
1,
Javier Guzmán-Pantoja
2,
Ulises Páramo-García
1,*,
Alfredo Maciel-Cerda
3,
Reinaldo David Martínez-Orozco
1 and
Ricardo Vera-Graziano
3
1
Tecnológico Nacional de México/Instituto Tecnológico de Cd. Madero, Centro de Investigación en Petroquímica, Prol. Bahía de Aldhair y Av. De las Bahías, Parque de la Pequeña y Mediana Industria, Altamira, Tamaulipas 89600, Mexico
2
Instituto Mexicano del Petróleo, Gerencia de Transformación de Hidrocarburos, Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacán, 07730 Ciudad de México, Mexico
3
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Circuito de la Investigación Científica, Ciudad Universitaria, 04510 Ciudad de México, Mexico
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(6), 1718; https://doi.org/10.3390/ijms19061718
Submission received: 3 May 2018 / Revised: 30 May 2018 / Accepted: 1 June 2018 / Published: 9 June 2018
(This article belongs to the Special Issue Synthesis and Applications of Biopolymer Composites)
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Abstract

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).
Keywords: chitosan; PVA; nanofibers; electrospinning chitosan; PVA; nanofibers; electrospinning

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MDPI and ACS Style

Sanchez-Alvarado, D.I.; Guzmán-Pantoja, J.; Páramo-García, U.; Maciel-Cerda, A.; Martínez-Orozco, R.D.; Vera-Graziano, R. Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon. Int. J. Mol. Sci. 2018, 19, 1718. https://doi.org/10.3390/ijms19061718

AMA Style

Sanchez-Alvarado DI, Guzmán-Pantoja J, Páramo-García U, Maciel-Cerda A, Martínez-Orozco RD, Vera-Graziano R. Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon. International Journal of Molecular Sciences. 2018; 19(6):1718. https://doi.org/10.3390/ijms19061718

Chicago/Turabian Style

Sanchez-Alvarado, Diana Isela, Javier Guzmán-Pantoja, Ulises Páramo-García, Alfredo Maciel-Cerda, Reinaldo David Martínez-Orozco, and Ricardo Vera-Graziano. 2018. "Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon" International Journal of Molecular Sciences 19, no. 6: 1718. https://doi.org/10.3390/ijms19061718

APA Style

Sanchez-Alvarado, D. I., Guzmán-Pantoja, J., Páramo-García, U., Maciel-Cerda, A., Martínez-Orozco, R. D., & Vera-Graziano, R. (2018). Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon. International Journal of Molecular Sciences, 19(6), 1718. https://doi.org/10.3390/ijms19061718

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