Analytical applications of pH-ISFETs

✍ Scribed by Yuri G. Vlasov; Andrey V. Bratov

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 504 KB
• Volume: 10
• Category: Article
• ISSN: 0925-4005
• DOI: 10.1016/0925-4005(92)80002-f

✦ Synopsis

This work presents a brief review of the results obtained in the Chemical Sensors Laboratory at the University of St. Petersburg and gives some examples of possible applications of pH-sensitive field-effect transistors with zirconium dioxide and tantalum pentoxide gate films. Specifically, the following applications are discussed: (i) direct pH measurements in blood and gastric juice; (ii) pH-ISFETs as a base for enzyme sensors (urea, butyrylcholine);

(iii) the determination of inhibitors with an enzyme sensor; (iv) application of pH-ISFETs for direct pH measurements in microbiological systems.