MOMSense: Metal-Oxide-Metal Elementary Glucose Sensor

Heba Abunahla, Baker Mohammad, Anas Alazzam, Maguy Abi Jaoude, Mahmoud Al-Qutayri, Sabina Abdul Hadi, Said F. Al-Sarawi

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35 Scopus citations

Abstract

In this paper, we present a novel Pt/CuO/Pt metal-oxide-metal (MOM) glucose sensor. The devices are fabricated using a simple, low-cost standard photolithography process. The unique planar structure of the device provides a large electrochemically active surface area, which acts as a nonenzymatic reservoir for glucose oxidation. The sensor has a linear sensing range between 2.2 mM and 10 mM of glucose concentration, which covers the blood glucose levels for an adult human. The distinguishing property of this sensor is its ability to measure glucose at neutral pH conditions (i.e. pH = 7). Furthermore, the dilution step commonly needed for CuO-based nonenzymatic electrochemical sensors to achieve an alkaline medium, which is essential to perform redox reactions in the absence of glucose oxidase, is eliminated, resulting in a lower-cost and more compact device.

Original languageBritish English
Article number5524
JournalScientific Reports
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2019

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