| Title: | MoO(3)/nano-Si heterostructure based highly sensitive and acetone selective sensor prototype: a key to non-invasive detection of diabetes |
| Author(s): | Dwivedi P; Dhanekar S; Das S; |
| Address: | "Centre for Applied Research in Electronics, Indian Institute of Technology (IIT), Hauz Khas, New Delhi-110016, India" |
| ISSN/ISBN: | 1361-6528 (Electronic) 0957-4484 (Linking) |
| Abstract: | "This paper presents the development of an extremely sensitive and selective acetone sensor prototype which can be used as a platform for non-invasive diabetes detection through exhaled human breath. The miniaturized sensors were produced in high yield with the use of standard microfabrication processes. The sensors were based on a heterostructure composed of MoO(3) and nano-porous silicon (NPS). Features like acetone selective, enhanced sensor response and 0.5 ppm detection limit were observed upon introduction of MoO(3) on the NPS. The sensors were found to be repeatable and stable for almost 1 year, as tested under humid conditions at room temperature. It was inferred that the interface resistance of MoO(3) and NPS played a key role in the sensing mechanism. With the use of breath analysis and lab-on-chip, medical diagnosis procedures can be simplified and provide solutions for point-of-care testing" |
| Keywords: | "Acetone/*analysis Diabetes Mellitus/*diagnosis Humans Microscopy, Atomic Force Molybdenum/*chemistry Nanopores/ultrastructure Oxides/*chemistry Photoelectron Spectroscopy Porosity Silicon/*chemistry Surface Properties Volatile Organic Compounds/analysis X;" |
| Notes: | "MedlineDwivedi, Priyanka Dhanekar, Saakshi Das, Samaresh eng England 2018/05/11 Nanotechnology. 2018 Jul 6; 29(27):275503. doi: 10.1088/1361-6528/aabcef" |
