A quasi-reagentless point-of-care test for nitrite and unaffected by oxygen and cyanide.

ABSTRACT: The ubiquitous nitrite is a major analyte in the management of human health and environmental risks. The current analytical methods are complex techniques that do not fulfil the need for simple, robust and low-cost tools for on-site monitoring. Electrochemical reductase-based biosensors are presented as a powerful alternative, due to their good analytical performance and miniaturization potential. However, their real-world application is limited by the need of anoxic working conditions, and the standard oxygen removal strategies are incompatible with point-of-care measurements. Instead, a bienzymatic oxygen scavenger system comprising glucose oxidase and catalase can be used to promote anoxic conditions in aired environments. Herein, carbon screen-printed electrodes were modified with cyto

SUBMITTER: Monteiro T 

PROVIDER: S-EPMC6385495 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature