Evaluation of Metal Oxide Thin-Film Electrolyte-Gated Field Effect Transistors for Glucose Monitoring in Small Volume of Body Analytes

Monitoringof chronic diseases such as diabetes without painful detection from blood enables people to improve their quality of life. Although various nanomaterials have remarkable characteristics that allow them to be used, the complexity of reliable fabrication is still challenging for their real a...

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Bibliographic Details
Published in:IEEE sensors journal 2020-08, Vol.20 (16), p.9004-9010
Main Authors: Kim, Hojoong, Rim, You Seung, Kwon, Jang-Yeon
Format: Article
Language:English
Subjects:
Biosensors
Debye screening effect
Detection
electrolyte-gated field-effect transistors (EGFETs)
Electrolytes
Field effect transistors
Glucose
Glucose monitoring
IGZO
Indium gallium zinc oxide
Metal oxides
Monitoring
Nanomaterials
Semiconductor devices
Sensitivity
Sugar
Surface treatment
Thin films
Transistors
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Summary:Monitoringof chronic diseases such as diabetes without painful detection from blood enables people to improve their quality of life. Although various nanomaterials have remarkable characteristics that allow them to be used, the complexity of reliable fabrication is still challenging for their real applications. By using InGaZnO, simply deposited as thin-film structure, combined with electrolyte-gated field-effect transistors, highly sensitive sensing performance was demonstrated. The sensor characteristics were evaluated on the device level in various concentration of pH and glucose. It also exhibited good sensing capability in a high ionic solution over the screening effect with low interference among potential impediments for glucose. The sensing range and detection limit of device represent that sensing glucose in tear level could be practicable.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2020.2988269