Colorimetric Detection of Potassium Ions by Electrochromic Thin Film Devices DOI

Gang Lou,

Ziang Miao,

Muhammad Hassan

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Potassium ion (K + ) detection technology based on electrochemical sensing has proven to be feasible and widely used in physiological real‐time monitoring pathological prediction. Nevertheless, chip integration, wireless communication needs, specific limits present challenges. In this study, high‐performance electrochromic materials (W 18 O 49 nanowires) ion‐selective thin films are introduced a highly selective, colorimetric K biosensor, which demonstrates excellent selectivity complex ionic environments. The film electrode offers both simultaneously from 1 m 1000 concentration range, achieving up ≈48% optical transmittance modulation, with coloration time of 15 s. At the clinically relevant range 1–10 , displays linear modulation sensitivity ≈0.6% per change. Stability tests demonstrate that maintains 96% its efficiency after 100 full change cycles. A compact solid‐state device incorporating also been fabricated, optically quantified real‐life sweat samples.

Language: Английский

Colorimetric Detection of Potassium Ions by Electrochromic Thin Film Devices DOI

Gang Lou,

Ziang Miao,

Muhammad Hassan

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Potassium ion (K + ) detection technology based on electrochemical sensing has proven to be feasible and widely used in physiological real‐time monitoring pathological prediction. Nevertheless, chip integration, wireless communication needs, specific limits present challenges. In this study, high‐performance electrochromic materials (W 18 O 49 nanowires) ion‐selective thin films are introduced a highly selective, colorimetric K biosensor, which demonstrates excellent selectivity complex ionic environments. The film electrode offers both simultaneously from 1 m 1000 concentration range, achieving up ≈48% optical transmittance modulation, with coloration time of 15 s. At the clinically relevant range 1–10 , displays linear modulation sensitivity ≈0.6% per change. Stability tests demonstrate that maintains 96% its efficiency after 100 full change cycles. A compact solid‐state device incorporating also been fabricated, optically quantified real‐life sweat samples.

Language: Английский

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