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Exploring Chromium-Based MOF for Uremic Toxin Capture: A Promising Alternative Strategy for Affordable Dialysis
Sachin Kumar1, Maridula Thakur1, Shalima Kumari1
1Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India.
Langmuir : the ACS Journal of Surfaces and Colloids
|July 10, 2026
Summary
A novel chromium-based metal-organic framework, Cr-IA, effectively captures diverse uremic toxins from blood and urine. This material shows promise for advanced dialysis and artificial kidney technologies, offering efficient detoxification.
Area of Science:
- Materials Science
- Chemistry
- Biomedical Engineering
Background:
- Uremic toxins accumulate in renal dysfunction, challenging current dialysis.
- Need for selective adsorbents in purification systems.
Purpose of the Study:
- Evaluate Cr-IA as a multifunctional adsorbent for uremic solutes.
- Assess Cr-IA's performance in various conditions and matrices.
Main Methods:
- Adsorption studies with creatinine, uric acid, p-cresol, and hippuric acid.
- Kinetic, thermodynamic, and spectroscopic analyses (FTIR, XPS).
- Testing in buffers, urine-mimicking solutions, and human blood serum.
Main Results:
- Cr-IA demonstrated strong, toxin-specific adsorption in water, buffers, and serum.
- Uric acid showed the highest affinity, even in protein-rich serum.
- Adsorption mechanisms involve coordination, hydrogen bonding, and π-π interactions.
Conclusions:
- Cr-IA is a hydrolytically robust, multifunctional adsorbent for uremic toxins.
- Its stable performance in complex matrices highlights biomedical applicability.
- Cr-IA is a promising candidate for next-generation artificial kidneys and detoxification systems.
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