Sensitivity-Tunable and Disposable Ion-Sensing Platform Based on Reverse Electrodialysis

Autor:	Song Yi Yeon, Taek Dong Chung, Jihun Rho
Rok vydání:	2020
Předmět:	Chemistry Ion sensing Reversed electrodialysis 010401 analytical chemistry Nanotechnology Sensitivity (control systems) 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Ion
Zdroj:	Analytical Chemistry. 92:8776-8783
ISSN:	1520-6882 0003-2700
DOI:	10.1021/acs.analchem.0c00142
Popis:	The detection of ions is of critical importance for environmental, industrial, and physiological applications, where sensitive and disposable ion sensing is still challenging. Herein, we present a sensitivity-tunable ion-sensing platform based on reverse electrodialysis, which is suitable for convenient and sensitive on-site analysis of various ions. It is revealed that this sensing system does not require any external power supply, and the sensitivities can be modulated by altering the number of stacks, possibly higher than the theoretical limitation, the Nernstian slope. The sensing system is integrated with a multicolor detection system via the introduction of polyaniline as a reporting material, which enables direct quantitative analysis based on a continuous color change gradient observable with the naked eye. Overall, the adopted approach by introducing reverse electrodialysis represents remarkable progress toward self-powered and disposable ion sensors with high and easily tunable potentiometric sensitivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::695c14aacc5b585454871070dc326264 https://doi.org/10.1021/acs.analchem.0c00142 Zobrazit plný text záznamu