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Detection of trace concentrations of S-nitrosothiols by means of a capacitive sensor
Journal article   Open access   Peer reviewed

Detection of trace concentrations of S-nitrosothiols by means of a capacitive sensor

James M Seckler, Nikki M Meyer, Spencer T Burton, James N Bates, Benjamin Gaston and Stephen J Lewis
PloS one, Vol.12(10), pp.e0187149-e0187149
2017
DOI: 10.1371/journal.pone.0187149
PMCID: PMC5658150
PMID: 29073241
url
https://doi.org/10.1371/journal.pone.0187149View
Published (Version of record) Open Access

Abstract

Small molecule S-nitrosothiols are a class of endogenous chemicals in the body, which have been implicated in a variety of biological functions. However, the labile nature of NO and the limits of current detection assays have made studying these molecules difficult. Here we present a method for detecting trace concentrations of S-nitrosothiols in biological fluids. Capacitive sensors when coupled to a semiconducting material represent a method for detecting trace quantities of a chemical in complex solutions. We have taken advantage of the semiconducting and chemical properties of polydopamine to construct a capacitive sensor and associated method of use, which specifically senses S-nitrosothiols in complex biological solutions.
Mass Spectrometry Dopamine - chemistry S-Nitrosothiols - analysis Limit of Detection S-Nitrosothiols - chemistry Humans

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