I would like to ask if Is it possible to perform sodium alginate electrospinning without PVA or PEO macromolecular, or add something else that can be removed later.Any help would be appreciated.
Yes, it is possible to perform sodium alginate electrospinning without the use of PVA or PEO macromolecules. Sodium alginate itself is a biopolymer that can be electrospun without the addition of any other macromolecules. However, the electrospun fibers may not be as stable or have the desired properties without the addition of other materials.
If you want to add something that can be removed later, you can consider using a sacrificial material, such as a water-soluble polymer, that can be dissolved after the electrospinning process is complete. Examples of sacrificial materials that can be used include polyvinyl alcohol (PVA) and polyethylene oxide (PEO), which can be easily dissolved in water.
The structure confirmation of Na.alginate, lack of chain entanglements and the highly positive charge which results in high electrical conductivity contribute to the difficulties associated with alginate’s electrospinnability. Previous studies tried electrospinning pure alginate. however beads or droplets were formed.
Therefore, it is recommended to use Cacl2 as it is reported to enhance the intermolecular interactions of Na.alginate solutions, enhance chain entanglements and improved its electrospinnability.
References:
{1} Mokhena, Teboho Clement, Mokgaotsa Jonas Mochane, Asanda Mtibe, Maya Jacob John, Emmanuel Rotimi Sadiku, and Jeremia Shale Sefadi. "Electrospun alginate nanofibers toward various applications: A review." Materials 13, no. 4 (2020): 934.
Xinye Li Kindly refer this article, " Mokhena TC, Mochane MJ, Mtibe A, John MJ, Sadiku ER, Sefadi JS. Electrospun Alginate Nanofibers Toward Various Applications: A Review. Materials (Basel). 2020;13(4):934. Published 2020 Feb 20. doi:10.3390/ma13040934".
Thank you.
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