Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon
Abstract
:1. Introduction
2. Results and Discussions
2.1. Electrospinning Method: Experimental Parameters
2.2. Electrospun CS/PVA Samples Collected on Reticulated Vitreous Carbon
2.3. Morphology of the RVC Support and CS/PVA Fibers on RVC
2.4. Stabilization of CS/PVA Nanofibers
2.5. Solution Viscosity
3. Materials and Methods
3.1. Materials
3.2. Preparation of the CS/PVA Solution
3.3. Electrospinning Process
3.4. Alkaline Treatment with NaOH
3.5. Viscometric Studies
4. Conclusions
Author Contributions
Acknowledgments
Conflicts of Interest
References
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2 wt. CS/8 wt % PVA Solution | Image | Flow Rate | Distance | Voltage | Observations * |
---|---|---|---|---|---|
Id. | mL/h | cm | kV | ||
Flow rate | a | 0.12 | 15 | 14 | Non-uniform fibers |
b | 0.13 | 15 | 14 | Non-uniform fibers with nodules | |
Voltage | c | 0.13 | 15 | 15 | Non-uniform fibers with nodules |
d | 0.13 | 15 | 14 | Non-uniform fibers | |
Tip–target distance | e | 0.12 | 20 | 14 | Non-uniform fibers |
f | 0.12 | 25 | 14 | Non-uniform fibers | |
g | 0.13 | 20 | 16 | Non-uniform fibers | |
h | 0.12 | 25 | 16 | Non-uniform fibers | |
i | 0.13 | 20 | 14 | Non-uniform fibers | |
j | 0.13 | 25 | 14 | Non-uniform fibers | |
k | 0.13 | 20 | 16 | Uniform fibers | |
l | 0.13 | 25 | 16 | Non-uniform fibers with nodules |
Parameter | 15 min | 30 min | 1 h | 1.5 h | 2 h |
---|---|---|---|---|---|
Diameter (nm) | 132 | 177 | 170 | 159 | 212 |
Standard deviation (nm) | ±20 | ±9 | ±7 | ±11 | ±6 |
Parameter | Before | After |
---|---|---|
Diameter (nm) | 159 ± 11 | 115 ± 9 |
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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
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 StyleSanchez-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