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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Published in:International journal of molecular sciences 2018-06, Vol.19 (6), p.1718
Main Authors: Sanchez-Alvarado, Diana Isela, Guzmán-Pantoja, Javier, Páramo-García, Ulises, Maciel-Cerda, Alfredo, Martínez-Orozco, Reinaldo David, Vera-Graziano, Ricardo
Format: Article
Language:English
Subjects:
Alcohol
Carbon - chemistry
Chitosan
Chitosan - chemistry
Electric potential
Electrospinning
Fibers
Flow velocity
Morphology
Nanofibers
Nanofibers - chemistry
Nanofibers - ultrastructure
Nanotechnology - methods
Polyvinyl Alcohol - chemistry
Scanning electron microscopy
Sodium hydroxide
Solutions
Viscosity
Voltage
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cited_by cdi_FETCH-LOGICAL-c412t-26b08e728577fb9037b528bd87029300f2e936cffe68973b0cb1cc0d601521be3
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container_title International journal of molecular sciences
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creator Sanchez-Alvarado, Diana Isela
Guzmán-Pantoja, Javier
Páramo-García, Ulises
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Vera-Graziano, Ricardo
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).
doi_str_mv 10.3390/ijms19061718
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subjects Alcohol
Carbon - chemistry
Chitosan
Chitosan - chemistry
Electric potential
Electrospinning
Fibers
Flow velocity
Morphology
Nanofibers
Nanofibers - chemistry
Nanofibers - ultrastructure
Nanotechnology - methods
Polyvinyl Alcohol - chemistry
Scanning electron microscopy
Sodium hydroxide
Solutions
Viscosity
Voltage
title Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
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