Proceedings ArticleDOI
Development of Highly Sensitive Iron (III) Oxide Thin Film for Acetone Sensing
Mohd Nahid,Vikas Saini,Jitendra Bhargava,Ashok Sharma,Ajay Agarwal,Vinay Goyal,Rahul Prajesh +6 more
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TLDR
Agarwal et al. as discussed by the authors presented the development of iron oxide thin film for the highly sensitive detection of Acetone (CH3COCH3) using FESEM and micro-Raman.Abstract:
Human breath contains various biomarkers which possibly can give us information about various diseases. Acetone is one such biomarker giving the information of blood glucose levels in the body. Breath acetone content for a healthy person is in the range of 0.5 to 2 ppm. Acetone concentration above this concentration may be an indication of person being diabetic. Hence it is imperative to detect this gas at low concentrations. This paper presents the development of iron oxide thin film for the highly sensitive detection of Acetone (CH3COCH3). Developed iron oxide thin film is characterized using FESEM and micro-Raman. It was demonstrated that the film exhibited a response of 65% for the acetone concentration as low as 1 ppm. The limit of detection for the film is ~50ppb.read more
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Journal ArticleDOI
Highly selective acetone detector based on a separation channel and semiconductor gas sensor
TL;DR: In this article, an accurate non-invasive detection method for low-concentration breath acetone of diabetics based on a separation channel and semiconductor gas sensors is presented.
References
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TL;DR: In this paper, a critical parameter analysis of different metal oxides that are known to be sensitive to various gaseous species are thoroughly examined, such as phase of the oxide, sensing gas species, operating temperature range, and physical form of the material for the development of integrated gas sensors.
Journal ArticleDOI
Raman spectroscopic study of magnetite (FeFe2O4): a new assignment for the vibrational spectrum
Olga Shebanova,Peter Lazor +1 more
TL;DR: Raman spectroscopic study on magnetite (FeFeFe2O4): a new assignment for the vibrational spectrum was presented in this paper, where the authors used the Raman spectroglobalisation of magnetite.
Journal ArticleDOI
The effects of thickness and operation temperature on ZnO:Al thin film CO gas sensor
TL;DR: In this article, the dependence of the thin film thickness on CO gas sensing properties was investigated, where the film thickness was varied by controlling the deposition time, and the structure of the deposited ZnO:Al films was determined by X-ray diffraction, scanning electron microscopy and atomic force microscopy.
Journal ArticleDOI
The preparation of magnetite, goethite, hematite and maghemite of pigment quality from mill scale iron waste
M.A. Legodi,D. de Waal +1 more
TL;DR: In this article, magnetite and goethite were precipitated from their respective precursors in aqueous media, and they were characterized by Raman spectroscopy, X-ray diffraction, surface area determination and scanning electron microscopy (SEM).
Journal ArticleDOI
Infrared- and Raman-Active Phonons of Magnetite, Maghemite, and Hematite: A Computer Simulation and Spectroscopic Study
Irina Chamritski,Gary R. Burns +1 more
TL;DR: The use of atomistic simulation methods with a transferable Buckingham potential provides new data for the phonon densities of states of magnetite and the two associated phases, hematite and maghemite.