Portable Nitric Oxide (NO) Generator Based on Electrochemical Reduction of Nitrite for Potential Applications in Inhaled NO Therapy and Cardiopulmonary Bypass Surgery

By Qin, Yu; Zajda, Joanna; Brisbois, Elizabeth J.; Ren, Hang; Toomasian, John M.; Major, Terry C.; Rojas-Pena, Alvaro; Carr, Benjamin; Johnson, Thomas; Haft, Jonathan W.; Bartlett, Robert H.; Hunt, Andrew P.; Lehnert, Nicolai; Meyerhoff, Mark E.
Published in Molecular Pharmaceutics 2017

Abstract

A new portable gas phase nitric oxide (NO) generator is described for potential applications in inhaled NO (INO) therapy and during cardiopulmonary bypass (CPB) surgery. In this system, NO is produced at the surface of a large-area mesh working electrode by electrochemical reduction of nitrite ions in the presence of a soluble copper(II)-ligand electron transfer mediator complex. The NO generated is then transported into gas phase by either direct purging with nitrogen/air or via circulating the electrolyte/nitrite solution through a gas extraction silicone fiber-based membrane-dialyzer assembly. Gas phase NO concentrations can be tuned in the range of 5

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