Titanium dioxide ion-sensitive extended gate field effect transistor (ISEGFET): selective detection of potassium ions in artificial blood serum. - Al-Hardan, Naif H.; Hamid, Muhammad Azmi Abdul; Firdaus-Raih, Mohd; Jalar, Azman; Kamaruddin, Ain Zafirah; Keng, Lim Kar; AL-Khalqi, Ensaf Mohammed; Ahmed, Naser M. (Journal of Materials Science: Materials in Electronics, 2024)