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Węgrzyn, Katarzyna; Michalska, Agata; Maksymiuk, Krzysztof; Kalisz, Justyna, 2024, "3D-drawn supports for ion-selective electrodes", https://doi.org/10.18150/VSAB3S, RepOD, V1
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A new concept of easy to make, potentially disposable potentiometric sensors is presented. A thermoprocessable carbon black-loaded, electronically conducting, polylactide polymer composite was used to prepare substrate electrodes of user’s defined shape/arrangement applying a 3D pen in a hot melt process. Covering of the carbon black-loaded polylactide 3D-drawn substrate electrode with a PVC-based ion-selective membrane cocktail results in spontaneous formation of a zip-lock structure with a large contact area. Thus, obtained ion-selective electrodes offer sensors of excellent performance, including potential stability expressed by SD of the mean value of potential recorded equal to ±1.0 mV (n = 6) within one day and ±1.5 mV (n = 6) between five days. The approach offers also high device-to-device potential reproducibility: SD of mean value of E0 equal to ±1.5 mV (n = 5).
all-solid-state ion-selective electrodes, ion-to-electron transducers, 3D-drawn sensors, potential stability
J.Kalisz, K.Wȩgrzyn, K.Maksymiuk, A. Michalska, 3D-Drawn Supports for Ion-Selective Electrodes, Anal. Chem. 2022, 94, 8, 3436–3440. https://doi.org/10.1021/acs.analchem.1c05431 doi: 10.1021/acs.analchem.1c05431
CC BY - Creative Commons Attribution 4.0
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