Acetone sensing behaviour of optical fiber clad-modified with γ-CuBr nanocrystals

Subashini, T.; Renganathan, B.; Prakash, T.

doi:10.1016/j.mssp.2018.08.015

Cited by 33 publications

(9 citation statements)

References 20 publications

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“…So far, different gas sensors such as field-effect transistors (FETs) [32], optical [33], electrochemical [34], surface acoustic wave [35], cataluminescence [36], microwave-based [37], quartz crystal microbalance [3], microcantilever [38] mixed potential [39,40], photonic waveguide [41], and resistive-based [42,43] have been introduced in the literature.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Amiri

Roshan

Mirzaei

et al. 2020

Sensors

164

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Acetone is a well-known volatile organic compound that is widely used in different industrial and domestic areas. However, it can have dangerous effects on human life and health. Thus, the realization of sensitive and selective sensors for recognition of acetone is highly important. Among different gas sensors, resistive gas sensors based on nanostructured metal oxide with high surface area, have been widely reported for successful detection of acetone gas, owing to their high sensitivity, fast dynamics, high stability, and low price. Herein, we discuss different aspects of metal oxide-based acetone gas sensors in pristine, composite, doped, and noble metal functionalized forms. Gas sensing mechanisms are also discussed. This review is an informative document for those who are working in the field of gas sensors.

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Section: Introductionmentioning

confidence: 99%

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Amiri

Roshan

Mirzaei

et al. 2020

Sensors

164

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“…These problems range from high LOD (>1.8 ppm, diabetes threshold), high operation temperature and inappropriately explored ranges to poor selectivity. In addition, most of the biosensors were not optimised for the detection of acetone vapour for diabetes interest [ 19 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ]. As such, many important factors such as humidity effects were left unexplored.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Acetone Vapour Sensing Properties of a Ternary Composite of Doped Polyaniline, Reduced Graphene Oxide and Chitosan Using Surface Plasmon Resonance Biosensor

et al. 2020

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This work reports the use of a ternary composite that integrates p-Toluene sulfonic acid doped polyaniline (PANI), chitosan, and reduced graphene oxide (RGO) as the active sensing layer of a surface plasmon resonance (SPR) sensor. The SPR sensor is intended for application in the non-invasive monitoring and screening of diabetes through the detection of low concentrations of acetone vapour of less than or equal to 5 ppm, which falls within the range of breath acetone concentration in diabetic patients. The ternary composite film was spin-coated on a 50-nm-thick gold layer at 6000 rpm for 30 s. The structure, morphology and chemical composition of the ternary composite samples were characterized by FTIR, UV-VIS, FESEM, EDX, AFM, XPS, and TGA and the response to acetone vapour at different concentrations in the range of 0.5 ppm to 5 ppm was measured at room temperature using SPR technique. The ternary composite-based SPR sensor showed good sensitivity and linearity towards acetone vapour in the range considered. It was determined that the sensor could detect acetone vapour down to 0.88 ppb with a sensitivity of 0.69 degree/ppm with a linearity correlation coefficient of 0.997 in the average SPR angular shift as a function of the acetone vapour concentration in air. The selectivity, repeatability, reversibility, and stability of the sensor were also studied. The acetone response was 87%, 94%, and 99% higher compared to common interfering volatile organic compounds such as propanol, methanol, and ethanol, respectively. The attained lowest detection limit (LOD) of 0.88 ppb confirms the potential for the utilisation of the sensor in the non-invasive monitoring and screening of diabetes.

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“…To overcome the challenges of the above‐mentioned sensors, fiber‐optic sensors based on metal oxides were developed to detect gases. Many have reported modified‐cladding fiber‐optic sensors to detect trace quantities of hazardous gases like ammonia, acetone, ethanol, methanol, butane and nitrogen dioxide in steps of 50 ppm or 100 ppm [16–30]. These sensors can be operated at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterisation of cerium sulphide over optical fiber and its gas sensing application

Theoderaj

Jacob

Chitra

2021

Materialwissenschaft Werkst

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In this study, a cladding‐modified optical fiber‐based gas sensor is proposed for detection of carbon dioxide gas. Cerium disulphide (CeS2) is synthesised and coated by chemical bath deposition (CBD) route over the region in which cladding is removed. This synthesised cerium disulphide is characterised by x‐ray diffraction (XRD), photoluminescence spectrum (PL), ultra violet‐visible absorption spectrum, ultra violet ‐visible reflectance and transmittance spectrum, scanning electron microscope images (SEM) and energy dispersive x‐ray spectrum (EDX). The response of the sensor is recorded for different concentrations of test gases (nitrogen dioxide and carbon dioxide) and the sensor's selectivity is compared and analysed. It is observed that cerium disulphide is more sensitive to carbon dioxide compared to nitrogen dioxide.

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Acetone sensing behaviour of optical fiber clad-modified with γ-CuBr nanocrystals

Cited by 33 publications

References 20 publications

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review

Investigation of Acetone Vapour Sensing Properties of a Ternary Composite of Doped Polyaniline, Reduced Graphene Oxide and Chitosan Using Surface Plasmon Resonance Biosensor

Synthesis and characterisation of cerium sulphide over optical fiber and its gas sensing application

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