Ontology highlight
ABSTRACT:
SUBMITTER: Moser N
PROVIDER: S-EPMC7145285 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Moser Nicolas N Leong Chi Leng CL Hu Yuanqi Y Cicatiello Chiara C Gowers Sally S Boutelle Martyn M Georgiou Pantelis P
Analytical chemistry 20200320 7
This work describes an array of 1024 ion-sensitive field-effect transistors (ISFETs) using sensor-learning techniques to perform multi-ion imaging for concurrent detection of potassium, sodium, calcium, and hydrogen. Analyte-specific ionophore membranes are deposited on the surface of the ISFET array chip, yielding pixels with quasi-Nernstian sensitivity to K<sup>+</sup>, Na<sup>+</sup>, or Ca<sup>2+</sup>. Uncoated pixels display pH sensitivity from the standard Si<sub>3</sub>N<sub>4</sub> pass ...[more]