イオン感受性電界効果トランジスタ（ISFET）を用いたリチウムイオン検出

Tuluhan Olcayto Colak¹, Mehmet Kurt¹, Ecenaz Yaman¹

¹Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu Caddesi No 43 Sogutozu 06560 Ankara, Turkey.

|January 8, 2026

Abstract:

Lithium detection is critical in the medical field, as it is used for the treatment of bipolar disorder. Here, we offer a simple method using an ion-sensitive field-effect transistor device prepared to detect the presence of lithium in a solution. The Nafion 115 membrane used in this study has been conditioned to allow the transport of lithium ions from the electrolyte to a zinc oxide-based transistor. The device was studied with lithium ion concentrations ranging between 10^-2-10^-7 M. It was modeled using the COMSOL Multiphysics program for 10^-2 M. The device showed 2.85 mA/decade sensitivity and a detection limit of 77 μM.

キーワード:

リチウムイオンイオン感受性電界効果トランジスタ ISFET バイポーラ障害電気化学センサー

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