Single-Step Integration of Poly(3-Octylthiophene) and Single-Walled Carbon Nanotubes for Highly Reproducible Paper-Based Ion-Selective Electrodes,Analytical Chemistry

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Single-Step Integration of Poly(3-Octylthiophene) and Single-Walled Carbon Nanotubes for Highly Reproducible Paper-Based Ion-Selective Electrodes
Analytical Chemistry ( IF 6.7 ) Pub Date : 2020-12-29 , DOI: 10.1021/acs.analchem.0c04506
Mohammad Rostampour ₁ , Brian Bailey ₁ , Cody Autrey ₁ , Karla Ferrer ₁ , Brooke Vantoorenburg ₁ , Parth K. Patel ₁ , Percy Calvo-Marzal ₁ , Karin Y. Chumbimuni-Torres ₁

Affiliation

Calibration of ion-selective electrodes (ISEs) is cumbersome, time-consuming, and constitutes a significant limitation for the development of single-use and wearable disposable sensors. To address this problem, we have studied the effect of ion-selective membrane solvent on ISE reproducibility by comparing tetrahydrofuran (THF) (a typical solvent for membrane preparation) and cyclohexanone. In addition, a single-step integration of semiconducting/transducer polymer poly(3-octylthiophene) (POT) with single-walled carbon nanotubes (SWCNTs) into the paper-based ISEs (PBISEs) substrate was introduced. PBISEs for potassium and sodium ions were developed, and these ISEs present outstanding sensor performance and high potential reproducibility, as low as ±1.0 mV (n = 3).

中文翻译：

聚（3-辛基噻吩）和单壁碳纳米管的单步集成，用于高度可再现的纸基离子选择电极

离子选择电极（ISE）的校准既麻烦又费时，并且对一次性和可穿戴式一次性传感器的开发构成了重大限制。为解决此问题，我们通过比较四氢呋喃（THF）（用于膜制备的典型溶剂）和环己酮，研究了离子选择性膜溶剂对ISE重现性的影响。此外，还引入了半导体/传感器聚合物聚（3-辛基噻吩）（POT）与单壁碳纳米管（SWCNT）的单步集成到纸基ISE（PBISE）衬底中的功能。已开发出用于钾离子和钠离子的PBISE，这些ISE具有出色的传感器性能和低至±1.0 mV（n = 3）的高电势再现性。

更新日期：2021-01-26

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