Nanostructured materials offer a very specific surface area, typically in the range of 1000-4000 m2/gram. This enfavours a very high adsorption capacity. Selectivity for capturing only the toxins from the blood and not the valuable components is achieved by fine-tuning the surface chemistry as well as the nanoporosity of the sorbent material. Our sorbent system is therefore both efficient as well as selective for toxins thanks to the use of nanostructured materials. For the wearable kidney a set of three different sorbent materials are used capable of removing all important toxins.
Nanoclay/polymer matrix
- capturing small electrolytes such as potassium, phosphate, β2m, urate
Nanoporous carbon
- sorption of middle molecules such as creatinine, β2m, urate
- capturing protein bound toxins such as PAH, p-cresol, CMPF, indoxyl sulphate
Catalytic adsorbent
- decomposing urea into N2, CO2 and H2 via catalytic oxidation
Nanosorbent
Sorbent particle
Porous structure