Acetone sensor structure for biomedical applications

Abstract

In presents, it is well known that diagnose of human diseases tends to use non-invasive diagnostic methods. They not cause discomfort to patients and the samples are collected rapidly without necessity of special conditions. Thus, different effective methods of real time monitoring and detection of different biomarkers, such as acetone vapour, NOx, NH3, and H2 are highly desirable. Also these method need to be simple in use for all consumers. One of the leading causes of death nowadays according to the World Health Organization is diabetes mellitus, which is also fast-growing problem. Acetone in human breath is known to be the biomarker for clinical diagnosis of diabetes mellitus. It is known that concentration of acetone vapour in exhaled breath of persons diagnosed with diabetes mellitus varies from 1.7 ppm to 3.7 ppm. Detection of such low concentrations requires a high selectivity and sensitivity sensor. In this context, the semiconducting oxides nanostructures of CuO demonstrated promising results.