A Study of Combining Elastin in the Chitosan Electrospinning to Increase the Mechanical Strength and Bioactivity
Marine Drugs, ISSN: 1660-3397, Vol: 19, Issue: 3
2021
- 25Citations
- 1Usage
- 42Captures
- 1Mentions
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Metrics Details
- Citations25
- Citation Indexes25
- 25
- CrossRef22
- Usage1
- Abstract Views1
- Captures42
- Readers42
- 42
- Mentions1
- Blog Mentions1
- Blog1
Article Description
While electrospun chitosan membranes modified to retain nanofibrous morphology have shown promise for use in guided bone regeneration applications in in vitro and in vivo studies, their mechanical tear strengths are lower than commercial collagen membranes. Elastin, a natural component of the extracellular matrix, is a protein with extensive elastic property. This work examined the incorporation of elastin into electrospun chitosan membranes to improve their mechanical tear strengths and to further mimic the native extracellular composition for guided bone regeneration (GBR) applications. In this work, hydrolyzed elastin (ES12, Elastin Products Company, USA) was added to a chitosan spinning solution from 0 to 4 wt% of chitosan. The chitosan–elastin (CE) membranes were examined for fiber morphology using SEM, hydrophobicity using water contact angle measurements, the mechanical tear strength under simulated surgical tacking, and compositions using Fourier-transform infrared spectroscopy (FTIR) and post-spinning protein extraction. In vitro experiments were conducted to evaluate the degradation in a lysozyme solution based on the mass loss and growth of fibroblastic cells. Chitosan membranes with elastin showed significantly thicker fiber diameters, lower water contact angles, up to 33% faster degradation rates, and up to seven times higher mechanical strengths than the chitosan membrane. The FTIR spectra showed stronger amide peaks at 1535 cm and 1655 cm in membranes with higher concentrated elastin, indicating the incorporation of elastin into electrospun fibers. The bicinchoninic acid (BCA) assay demonstrated an increase in protein concentration in proportion to the amount of elastin added to the CE membranes. In addition, all the CE membranes showed in vitro biocompatibility with the fibroblasts.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85103862281&origin=inward; http://dx.doi.org/10.3390/md19030169; http://www.ncbi.nlm.nih.gov/pubmed/33809867; https://www.mdpi.com/1660-3397/19/3/169; https://digitalcommons.memphis.edu/facpubs/1564; https://digitalcommons.memphis.edu/cgi/viewcontent.cgi?article=2563&context=facpubs; https://dx.doi.org/10.3390/md19030169
MDPI AG
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