Publications by authors named "Hamid Reza Ansari"

Owing to the correlation between acetone in human's exhaled breath (EB) and blood glucose, the development of EB acetone gas-sensing devices is important for early diagnosis of diabetes diseases. In this article, a noninvasive blood glucose detection device through acetone sensing in EB, based on an α-FeO-multiwalled carbon nanotube (MWCNT) nanocomposite, was successfully developed. Different amounts of α-FeO were added to the MWCNTs by a simple solution method.

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Transition metal dichalcogenides (TMDs) with a two-dimensional (2D) structure and semiconducting features are highly favorable for the production of NHgas sensors. Among the TMD family, WS, WSe, MoS, and MoSeexhibit high conductivity and a high surface area, along with high availability, reasons for which they are favored in gas-sensing studies. In this review, we have discussed the structure, synthesis, and NHsensing characteristics of pristine, decorated, doped, and composite-based WS, WSe, MoS, and MoSegas sensors.

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In this paper, we have developed an in-vehicle wireless driver breath alcohol detection (IDBAD) system based on Sn-doped CuO nanostructures. When the proposed system detects the ethanol trace in the driver`s exhaled breath, it can alarm and then prevents the car to be started and also sends the location of the car to the mobile phone. The sensor used in this system is a two-sided micro-heater integrated resistive ethanol gas sensor fabricated based on Sn-doped CuO nanostructures.

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