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Evaluating Electrospun Polycaprolactone Fibers for Blood-Contacting Applications
Muzammil Kuddushi1, Aishwarya S Pawar1, Mehdi Ghaffari Sharaf1
1Department of Chemical and Materials Engineering, University of Alberta, Alberta, Canada.
Biopolymers
|January 22, 2025
Summary
Uremic toxins (UTXs) in kidney disease increase protein adsorption on PCL fibers, a potential dialysis material. Unmodified PCL may trigger immune responses, requiring further study for personalized treatments.
Area of Science:
- Biomaterials Science
- Nephrology
- Biochemistry
Background:
- Kidney injury leads to uremic toxin (UTX) accumulation, impairing bodily functions.
- Current dialysis methods face limitations in effectively removing all UTXs.
- Polycaprolactone (PCL) fibers are explored as a novel material for potential dialysis applications.
Purpose of the Study:
- To investigate the adsorption of UTXs from blood plasma onto PCL fibers.
- To assess the potential of PCL fibers as an alternative to conventional membrane dialysis materials.
- To evaluate protein adsorption and clot formation on PCL fibers in the presence of UTXs.
Main Methods:
- Utilized plasma containing 26 specific UTXs at concentrations relevant to end-stage kidney disease.
- Analyzed protein adsorption profiles on PCL fiber meshes.
- Examined blood clot formation in normal and UTX-treated plasma exposed to PCL fibers.
Main Results:
- UTXs significantly enhanced protein adsorption onto PCL fiber surfaces.
- No significant increase in clot formation was observed, indicating a lack of enzymatic activation.
- Unmodified PCL surfaces demonstrated potential to elicit a strong humoral immune response.
Conclusions:
- PCL fibers show promise for UTX adsorption but require surface modification to mitigate immune response.
- Understanding PCL-fiber-protein-toxin interactions is crucial for developing effective kidney failure treatments.
- Further research is needed to optimize PCL-based materials for personalized dialysis therapies.
