A Highly Transparent Chip for Sensing Hydrogen Peroxide

• Published in: IEEE sensors letters Vol. 6; no. 9; pp. 1 - 4
• Main Authors: Luo, Xiaojin, Yue, Wei, Yao, Xuesong, Cui, Yue
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.09.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: amperometric; Amperometric sensors; biosensor; Biosensors; Electric potential; Electrical measurement; Electrodes; Electronic devices; Electronic materials; Environmental monitoring; Hydrogen peroxide; hydrogen peroxide (H<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> _{2}</tex-math> </inline-formula> </named-content>O<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> _{2}</tex-math> </inline-formula> </named-content>); Indium tin oxide; indium tin oxide (ITO); Indium tin oxides; Industrial applications; Optical sensors; Sensor systems; Sensors; Target detection; transparent
• ISSN: 2475-1472; 2475-1472
• DOI: 10.1109/LSENS.2022.3201148

Developing a fully transparent sensor for the detection of the target analyte is of great importance for environmental and defense monitoring. Indium tin oxide (ITO), as a highly transparent conductive electronic material, is widely used in research and industrial applications. We show here, for the first time, the development of a fully transparent amperometric biosensor for detecting hydrogen peroxide (H 2 O 2 ) by using ITO electrodes as the working electrode and the reference/counter electrode. The sensor shows a highly sensitive and rapid detection of H 2 O 2 and, in the meantime, maintains high transparency. We expect that these results could open exciting opportunities for fundamental studies of transparent electronic devices and advance related applications in environmental monitoring and defense.