Breaking! CuO / Cu2O Nanowire Sensors with 3D Heterojunction Network

The researchers from the Department of Microelectronics and Biomedical Engineering, Faculty of Computer Science, Informatics and Microelectronics, Nicolai ABABII, PhD student, 3rd year, Excellent Scholar as designated by the Government of the Republic of Moldova, 2018-2019, together with Vasili CREŢU, prof., Ph.D., under the guidance of univ. prof., dr. hab. Oleg LUPAN, the director of the Nanotechnology and Nanosensors Center, in collaboration with the University of Kiel, Germany, designed, researched and developed CuO / Cu2O nanowires based acetone sensors with a heterojunction network through 3D printing method in a single stage. The results of this scientific paper have been published in one of the most prestigious scientific journals – “ACS Applied Materials & Interfaces” in the United States, with an impact factor of 8.5, after 3 rounds of reviews of 3 reviewers, forwarded to be selected on the Cover of the Journal.

The authors of the paper mentioned that this 3D printing approach will open a new path for a multitude of devices through the simplicity and versatility of the manufacturing method for an accurate detection of acetone vapors in different atmospheres. Acetone vapor is a widely used reagent in households, industry and various laboratory applications, being very harmful to human health and biological processes, so its rapid identification is crucial. From a historical point of view, endogenous acetone is measured in the expired breath to monitor ketosis in healthy and diabetic patients. Its level may range from <1 ppm in the healthy individuals and > 2 ppm – 1250 ppm in diabetic ketoacidosis patients. Thus, it’s very important for 3D printable portable devices for sensors to be produced in a massive and cost-effective way, as the number of diabetics has increased significantly (doubled) over the past decades.

The importance of the amplification of this idea lies in the simplicity of the 3D printable device and the possibility of its expansion in production or development, especially for other electronic and biomedical applications. Thus, the results of the TUM researchers in collaboration with German scientists represent an important step in the field of nanoscience, microelectronics, cost-effective nanotechnologies, and international nanoscience.

These internationally appreciated  researches were partially supported by the institutional project inst-15.817.02.29A, financed by the Government of the Republic of Moldova and by TUM.

Online References:

https://pubs.acs.org/doi/10.1021/acsami.9b04385