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. Author manuscript; available in PMC: 2023 Aug 25.
Published in final edited form as: Anal Methods. 2022 Aug 25;14(33):3171–3179. doi: 10.1039/d2ay00931e

Figure 2.

Figure 2.

Characterization of amperometric detection portion of the device for NO detection. A) Micrograph of 100 μm gold working electrode in the printed channel and the same electrode modified with Pt-black and Nafion for selective NO detection. B) Bar graph demonstrating the exclusion of nitrite compared to equimolar injections of NO (95 μM) using the Pt-black/Nafion modified electrode. C) Amperometric trace for NO detection of a 7% RBC sample (triplicate injections, +0.85 V vs. Ag/AgCl). Inset shows trace for injection of 7% RBC sample and an overlay of a 7% RBC sample spiked with 9.5 μM NO.