Nanoelectrokinetic Purification Device For A Continuous Peritoneal Dialysate Recycler

Ion concentration polarization (ICP) phenomenon has been extensively researched for electro-desalination and purification applications because of its efficient capability of separating any charged species from brines. In this work, the ICP purifier, for the first time, was applied for a novel continuous peritoneal dialysate recycler. Most of charged hazardous substances were sufficiently removed by conventional ICP mechanisms. Moreover, slightly charged toxic molecule (creatinine) was mostly eliminated through nanoporous membrane, and uncharged toxic molecule (urea) was perfectly decomposed by electrochemical reactions. Based on the combined removal mechanisms confirmed in a micro/nanofluidic platform, a macro ICP purifier was finally demonstrated for practical applicability. We would expect significant advances in a quality of life for chronic kidney disease patients by this ICP purifier.