Detection of breath acetone by semiconductor metal oxide nanostructures-based gas sensors: A review

Ahmadipour, Mohsen; Pang, Ai Ling; Ardani, Mohammad Rezaei; Pung, Swee‐Yong; Ooi, Poh Choon; Hamzah, Azrul Azlan; Wee, M. F. Mohd Razip; Haniff, Muhammad Aniq Shazni Mohammad; Dee, Chang Fu; Mahmoudi, Ebrahim; Arsad, Agus; Ahmad, Muhammad Zamharir; Pal, Ujjwal; Chahrour, Khaled M.; Haddadi, Seyyed Arash

doi:10.1016/j.mssp.2022.106897

Cited by 52 publications

(19 citation statements)

References 145 publications

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“…This is reflected in the response characteristics; both the electric conductance and voltage increase. Obviously, when the Pb contaminants adhere to the surface of TiO 2 , the O n− ad content is greatly reduced, resulting in lowering of its grain boundary barrier and thus its sensitivity [ 41 , 42 ]. Peng et al studied the influence mechanism of Pb on a CeO 2 -WO 3 /TiO 2 -SiO 2 catalyst.…”

Section: Resultsmentioning

confidence: 99%

Study on the Deterioration Mechanism of Pb on TiO2 Oxygen Sensor

Duan

Zhang

et al. 2023

Micromachines

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Previous studies have shown that the pollutants in exhaust gas can cause performance deterioration in air-fuel oxygen sensors. Although the content of Pb in fuel oil is as low as 5 mg/L, the effect of long-term Pb accumulation on TiO2 oxygen sensors is still unclear. In this paper, the influence mechanism of Pb-containing additives in automobile exhaust gas on the response characteristics of TiO2 oxygen sensors was simulated and studied by depositing Pb-containing pollutants on the surface of a TiO2 sensitive film. It was found that the accumulation of Pb changed the surface gas adsorption state and reduced the activation energy of TiO2, thus affecting the steady-state response voltage and response speed of the TiO2-based oxygen sensor.

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Section: Resultsmentioning

confidence: 99%

Study on the Deterioration Mechanism of Pb on TiO2 Oxygen Sensor

Duan

Zhang

et al. 2023

Micromachines

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“…Therefore, the monitoring of blood ketone levels is also extremely important for diabetic patients [ 28 ]. Such control carries with it slight variation due to the complexity of the composition of human breath and the factors that influence it [ 19 ]. In recent research, the exhaled acetone concentration has been correlated to blood glucose concentration and discussed with physicians before being used as a single biomarker ( Figure 2 b) [ 29 , 30 ].…”

Section: Methodology Of the Literature Reviewmentioning

confidence: 99%

“…Tomić et al [ 18 ] presented a discussion focused on key materials such as metal oxides, conductive polymers, and carbon-based materials and their mutual combination due to their representativeness in sensing VOCs. Ahmadipour et al [ 19 ] presented breath acetone measurement techniques and the factors that affect the concentration of acetone in human breath (e.g., dietary changes, hourly variations, weight, and exercise). Yang et al [ 20 ] and Baharuddin et al [ 21 ], like Ahmadipour et al [ 19 ], discussed the factors that affect detection performance, especially the structures, morphologies, presence of impurities in semiconductor materials, and specific surface area of metal oxides.…”

Section: Introductionmentioning

confidence: 99%

“…Ahmadipour et al [ 19 ] presented breath acetone measurement techniques and the factors that affect the concentration of acetone in human breath (e.g., dietary changes, hourly variations, weight, and exercise). Yang et al [ 20 ] and Baharuddin et al [ 21 ], like Ahmadipour et al [ 19 ], discussed the factors that affect detection performance, especially the structures, morphologies, presence of impurities in semiconductor materials, and specific surface area of metal oxides. Vajhadin et al [ 22 ] and Drmosh et al [ 23 ] presented the current state of gas sensors based on the three most common metal oxides, including ZnO, SnO 2 , and In 2 O 3 , highlighting the role of nanomaterials in improving the analytical performance of sensors.…”

Section: Introductionmentioning

confidence: 99%

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Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review

2023

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Metal oxide (MOx) gas sensors have attracted considerable attention from both scientific and practical standpoints. Due to their promising characteristics for detecting toxic gases and volatile organic compounds (VOCs) compared with conventional techniques, these devices are expected to play a key role in home and public security, environmental monitoring, chemical quality control, and medicine in the near future. VOCs (e.g., acetone) are blood-borne and found in exhaled human breath as a result of certain diseases or metabolic disorders. Their measurement is considered a promising tool for noninvasive medical diagnosis, for example in diabetic patients. The conventional method for the detection of acetone vapors as a potential biomarker is based on spectrometry. However, the development of MOx-type sensors has made them increasingly attractive from a medical point of view. The objectives of this review are to assess the state of the art of the main MOx-type sensors in the detection of acetone vapors to propose future perspectives and directions that should be carried out to implement this type of sensor in the field of medicine.

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“…The invention and widespread use of solid-state gas sensors have offered an additional boost to the interest in VOC inspection and analysis for medical applications [ 182 ]. Semiconducting gas sensors are employed to test certain gases, such as hydrogen peroxide [ 183 ], acetone [ 184 ], ammonia [ 185 ], nitric oxide [ 186 ], and volatile sulfur [ 187 ], from human bodies. However, the study is being undertaken to create detection systems based on commercial MOX detectors to monitor low quantities of VOCs in breath [ 188 ], which is further enhanced by temperature modulation [ 189 ].…”

Section: Potential Biomedical Applicationmentioning

confidence: 99%

Semiconductor Multimaterial Optical Fibers for Biomedical Applications

et al. 2022

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Integrated sensors and transmitters of a wide variety of human physiological indicators have recently emerged in the form of multimaterial optical fibers. The methods utilized in the manufacture of optical fibers facilitate the use of a wide range of functional elements in microscale optical fibers with an extensive variety of structures. This article presents an overview and review of semiconductor multimaterial optical fibers, their fabrication and postprocessing techniques, different geometries, and integration in devices that can be further utilized in biomedical applications. Semiconductor optical fiber sensors and fiber lasers for body temperature regulation, in vivo detection, volatile organic compound detection, and medical surgery will be discussed.

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Detection of breath acetone by semiconductor metal oxide nanostructures-based gas sensors: A review

Cited by 52 publications

References 145 publications

Study on the Deterioration Mechanism of Pb on TiO2 Oxygen Sensor

Study on the Deterioration Mechanism of Pb on TiO2 Oxygen Sensor

Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review

Semiconductor Multimaterial Optical Fibers for Biomedical Applications

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