Detection of Drug-Producing Chemicals Based on Gas Sensor Array With Dynamic Temperature Modulation

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Detection of four alcohol homologue gases by ZnO gas sensor in dynamic interval temperature modulation mode

Fanli Meng et al.

Summary: This paper successfully detected four alcohol homologue gases using a ZnO gas sensor with dynamic temperature modulation method, achieving a recognition accuracy of 97.62% after optimization with decision tree classification algorithm.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Nanoscience & Nanotechnology

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

Jiri Kroutil et al.

Summary: The research investigates the selective detection of ammonia, nitrogen dioxide, carbon oxides, acetone, and toluene using a gas sensor array based on polyaniline nanocomposites. By employing machine learning and statistical tools such as principal component analysis, a highly accurate method utilizing Gaussian process classification model is found to reach 99% accuracy in classifying six different gases.

BEILSTEIN JOURNAL OF NANOTECHNOLOGY (2022)

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Qualitative and quantitative recognition method of drug-producing chemicals based on SnO2 gas sensor with dynamic measurement and PCA weak separation

Hanyang Ji et al.

Summary: In this study, a solution to the problem of detecting drug-producing chemicals through dynamic measurement using semiconductor gas sensors was proposed. By utilizing techniques such as principal component analysis (PCA), k-Nearest Neighbor (KNN), and polynomial regression, the sensor's performance in recognizing type and concentration information was improved. The feasibility of the method was verified by using the inverse transformation of PCA, resulting in successful qualitative and quantitative recognition of various drug-producing chemicals.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Article Chemistry, Analytical

Rare earth doped metal oxide sensor for the multimodal detection of volatile organic compounds (VOCs)

Matteo Fois et al.

Summary: The study introduced zirconium oxide nanomaterial doped with a rare earth metal for combined resistance and cataluminescence responses, demonstrating enhanced sensitivity and selectivity in detection. Europium-doped zirconium oxide showed better cataluminescence sensitivity than the undoped sensor, showcasing dual modality sensing for ethanol and acetone.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Article Engineering, Electrical & Electronic

Dynamic Measurement and Recognition Methods of SnO2 Sensor to VOCs Under Zigzag-Rectangular Wave Temperature Modulation

Fanli Meng et al.

Summary: In this study, a zigzag-rectangular wave temperature modulation method was proposed to improve the selectivity of the gas sensor, along with the use of support vector machine for pattern recognition, showing significant enhancement in characteristic peak and superior performance in small sample size. The combination of zigzag-rectangular wave temperature modulation and SVM pattern recognition method effectively improved the selectivity of the gas sensor.

IEEE SENSORS JOURNAL (2021)

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Article Chemistry, Analytical

Drift Compensation on Massive Online Electronic-Nose Responses

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Summary: This study focuses on the issue of gas sensor drift in electronic nose systems and introduces a class-label appraisal methodology and active learning framework to correct noisy labels, resulting in higher accuracy and lower computation costs compared to reference methods.

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Anodization of aluminum in a sealed container

Jin Zhang et al.

Summary: The pressure during sealed anodization plays a significant role in the morphology of the resulting anodic alumina, with porous alumina being formed under sealed conditions in contrast to nanotubes under normal pressure. This phenomenon is explained by the oxygen bubble mould theory, where oxygen gas is assumed to be key in the anodizing process and the volume expansion of oxygen bubbles promotes rapid upward growth of the anodic oxide.

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CHINESE CHEMICAL LETTERS (2020)

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Detection and Identification of Volatile Organic Compounds Based on Temperature-Modulated ZnO Sensors

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IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT (2020)

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SENSORS AND ACTUATORS B-CHEMICAL (2019)

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Complex-surfactant-assisted hydrothermal synthesis of one-dimensional ZnO nanorods for high-performance ethanol gas sensor

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One-Step Synthesis of Au/SnO2/RGO Nanocomposites and Their VOC Sensing Properties

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IEEE TRANSACTIONS ON NANOTECHNOLOGY (2018)

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A theoretical investigation of the power-law response of metal oxide semiconductor gas sensors I: Schottky barrier control

Zhongqiu Hua et al.

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Selective detection of individual gases and CO/H2 mixture at low concentrations in air by single semiconductor metal oxide sensors working in dynamic temperature mode

V. Krivetskiy et al.

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NATURE COMMUNICATIONS (2018)

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Platinum Coating on an Ultrathin InN Epilayer as a Dual Gas Sensor for Selective Sensing of Ammonia and Acetone by Temperature Modulation for Liver Malfunction and Diabetes Applications

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ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY (2018)

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Semiconductor metal oxide gas sensors: A review

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MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS (2018)

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Glial and Neuroimmune Mechanisms as Critical Modulators of Drug Use and Abuse

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Ultra-sensitive and highly selective H2 sensors based on FSP-made Rh-substituted SnO2 sensing films

K. Inyawilert et al.

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Controllable biomolecule-assisted synthesis and gas sensing properties of In2O3 micro/nanostructures with double phases

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Hydrothermal synthesis and Cl2 sensing performance of porous-sheets-like In2O3 structures with phase transformation

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Metal-Organic Frameworks-Derived Porous In2O3 Hollow Nanorod for High-Performance Ethanol Gas Sensor

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Large-Scale Structural Characterization of Drug and Drug-Like Compounds by High-Throughput Ion Mobility-Mass Spectrometry

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Patterns of drug abuse among drug users with regular and irregular attendance for treatment as detected by comprehensive UHPLC-HR-TOF-MS

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Detection of Cannabinoids by ELISA and GC-MS Methods in a Hair Sample Previously Used to Detect Other Drugs of Abuse

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A simple large-scale synthesis of mesoporous In2O3 for gas sensing applications

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Detection and Direct Readout of Drugs in Human Urine Using Dynamic Surface-Enhanced Raman Spectroscopy and Support Vector Machines

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Comparison of hollow fiber liquid-phase microextraction and ultrasound-assisted low-density solvent dispersive liquid-liquid microextraction for the determination of drugs of abuse in biological samples by gas chromatography-mass spectrometry

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Ultra-sensitive H2 sensors based on flame-spray-made Pd-loaded SnO2 sensing films

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Selective filter for SnO2-based gas sensor:: application to hydrogen trace detection

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Detection of Drug-Producing Chemicals Based on Gas Sensor Array With Dynamic Temperature Modulation

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