Vitamin C2026-05

engineered selenium nanoparticles enable multifunctional PLA mixed matrix membranes with potential for hemodialysis.

Domke Aleksandra, Jancelewicz Mariusz, Szymański Tomasz, Jarek Marcin et al. — Journal of materials chemistry. B

Summary

This study explored new materials for hemodialysis membranes, which are used in kidney dialysis. Researchers created special membranes using a biodegradable plastic and tiny selenium particles, which were made with vitamin C. These new membranes showed improved performance in filtering waste, resisting contamination, and being compatible with blood, suggesting a promising step for future kidney dialysis treatments.

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Key points

New membranes for kidney dialysis were developed using tiny selenium particles.
Vitamin C was used in the process to create these selenium particles.
These membranes showed better filtering ability, resisted clogging, and were safe for blood.
This research could lead to more effective and safer hemodialysis treatments in the future.

What the study looked at

What question did the study ask? This research aimed to develop improved materials for hemodialysis membranes, which are crucial for filtering waste from the blood in people with kidney failure. The goal was to create membranes that are more efficient at filtration, resist fouling (clogging), prevent bacterial infections, and are safe for blood contact. How was it studied? Scientists created new membranes by combining a common biodegradable plastic (polylactic acid or PLA) with tiny selenium nanoparticles. Notably, these selenium nanoparticles were synthesized using ascorbic acid, which is vitamin C. They then thoroughly tested these new membranes in the lab to assess their physical properties, filtering capabilities, ability to resist bacterial growth, and compatibility with blood components. What did it find? The study found that incorporating selenium nanoparticles significantly enhanced the membranes' performance. They showed improved filtering efficiency for waste products like creatinine, reduced protein buildup (which causes clogging), and demonstrated antibacterial properties, especially against common bacteria. Crucially, these modified membranes also maintained excellent compatibility with blood, suggesting they could be a promising step towards safer and more effective hemodialysis systems.

Dietary takeaway

While this study focuses on medical device technology, it highlights an interesting application of vitamin C in synthesizing materials. It's important to remember that consuming vitamin C through a balanced diet rich in fruits and vegetables supports overall health, but this research doesn't directly suggest dietary changes. This is a preliminary finding in a specific scientific context, and more research is needed before any definitive conclusions can be drawn about its broader implications.

Abstract

The development of advanced membrane materials capable of combining high filtration efficiency, fouling resistance, antibacterial activity and blood compatibility remains a key challenge in the design of next-generation hemodialysis systems. In this study, polylactic acid (PLA)/PEG mixed-matrix membranes incorporating selenium nanoparticles (Se-NPs), synthesised using ascorbic acid, were fabricated and evaluated as potential candidates for hemodialysis applications. Comprehensive physicochemical characterisation (SEM, TEM, FT-IR, AFM) confirmed the effective formation and uniform distribution of Se-NPs within the polymer matrix, as well as their influence on membrane morphology, hydrophilicity, and nanomechanical properties. The incorporation of Se-NPs significantly improved antifouling performance by reducing BSA adsorption and increasing hydrophilicity, with the 30Se membrane showing the most favourable behaviour. Filtration studies revealed a promising balance between permeability and selectivity, including high pure water flux, efficient creatinine clearance (>90%), and reduced BSA loss, highlighting their relevance for dialysis-like separation processes. Additionally, Se-NP loading imparted antibacterial activity, particularly against , which may help mitigate infection risks associated with extracorporeal blood purification. Biocompatibility assessments including cytotoxicity, hemolysis, plasma recalcification time, and platelet adhesion demonstrated that the materials maintain excellent compatibility with blood components. Overall, the incorporation of Se-NPs into PLA-based membranes yields multifunctional materials with strong potential for future hemodialysis applications, warranting further optimisation and in-depth biological evaluation.

View on PubMed →DOI: 10.1039/d6tb00354k