Overcoming the Limits of Cross-Sensitivity: Pattern Recognition Methods for Chemiresistive Gas Sensor Array

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Aug. 14, 2024

Abstract As information acquisition terminals for artificial olfaction, chemiresistive gas sensors are often troubled by their cross-sensitivity, and reducing cross-response to ambient gases has always been a difficult important point in the sensing area. Pattern recognition based on sensor array is most conspicuous way overcome cross-sensitivity of sensors. It crucial choose an appropriate pattern method enhancing data analysis, errors improving system reliability, obtaining better classification or concentration prediction results. In this review, we analyze mechanism We further examine types, working principles, characteristics, applicable detection range algorithms utilized gas-sensing arrays. Additionally, report, summarize, evaluate outstanding novel advancements methods identification. At same time, work showcases recent utilizing these identification, particularly within three domains: ensuring food safety, monitoring environment, aiding medical diagnosis. conclusion, study anticipates future research prospects considering existing landscape challenges. hoped that will make positive contribution towards mitigating gas-sensitive devices offer valuable insights algorithm selection applications.

Language: Английский

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Influence of Al cations insertion on the structural, morphological, optical properties, and methyl orange photocatalytic remotion of Pr-doped ZnO system

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 318, P. 129300 - 129300

Published: April 4, 2024

Language: Английский

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Recent advances in chromatography-mass spectrometry and electronic nose technology in food flavor analysis and detection

Food Chemistry, Journal Year: 2022, Volume and Issue: 405, P. 134814 - 134814

Published: Nov. 7, 2022

Language: Английский

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Prediction of CO concentration in different conditions based on Gaussian-TCN

Sensors and Actuators B Chemical, Journal Year: 2022, Volume and Issue: 376, P. 133010 - 133010

Published: Nov. 17, 2022

Language: Английский

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Metal oxide resistive sensors for carbon dioxide detection

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 472, P. 214758 - 214758

Published: Aug. 23, 2022

Language: Английский

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Advancements in Improving Selectivity of Metal Oxide Semiconductor Gas Sensors Opening New Perspectives for Their Application in Food Industry

Sensors, Journal Year: 2023, Volume and Issue: 23(23), P. 9548 - 9548

Published: Dec. 1, 2023

Volatile compounds not only contribute to the distinct flavors and aromas found in foods beverages, but can also serve as indicators for spoilage, contamination, or presence of potentially harmful substances. As odor food raw materials products carries valuable information about their state, gas sensors play a pivotal role ensuring safety quality at various stages its production distribution. Among detection devices that are widely used industry, metal oxide semiconductor (MOS) greatest importance. Ongoing research development efforts have led significant improvements performance, rendering them immensely useful tools monitoring product quality; however, aspects related limited selectivity still remain challenge. This review explores strategies technologies been employed enhance MOS sensors, encompassing innovative sensor designs, integration advanced materials, improvement measurement methodology pattern recognize algorithms. The discussed advances such reducing cross-sensitivity interfering gases, improving limits, providing more accurate assessment volatile organic (VOCs) could lead further expansion applications variety areas, including processing storage, ultimately benefiting both industry consumers.

Language: Английский

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Multiplexed Gas Sensor: Fabrication Strategies, Recent Progress, and Challenges

ACS Sensors, Journal Year: 2023, Volume and Issue: 8(9), P. 3320 - 3337

Published: Aug. 21, 2023

Due to miscellaneous toxic gases in the vicinity, there is a burgeoning need for advancement existing gas sensing technology not only survival of mankind but also industries based various fields such as beverage, forestry, health care, environmental monitoring, agriculture, and military security. A sensor must be highly selective toward specific order avoid incorrect signals while responding nontarget gases. This may lead complex scenarios depicting defects, low selectivity cross-sensitivity. Therefore, multiplex required address problems cross by combining different sensors, signal processing, pattern recognition techniques along with currently employed technologies. The materials used these arrays will produce unique response developing set identifiers input that can recognize its "fingerprint". review provides comprehensive chemiresistive-based including fabrication strategies from expensive low-cost techniques, advances materials, gist both rigid flexible applications. Finally, assesses current state-of-the-art discusses challenges future research this direction.

Language: Английский

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Metal Oxide-Based Sensors for Ecological Monitoring: Progress and Perspectives

Chemosensors, Journal Year: 2024, Volume and Issue: 12(3), P. 42 - 42

Published: March 5, 2024

This paper aims to provide a large coverage of recent developments regarding environmental monitoring using metal oxide-based sensors. Particular attention is given the detection gases such as H2, COx, SOx, NOx, and CH4. The analyses design sensors types oxide sensing materials are emphasized. mechanisms peculiarities oxides used in chemoresistive provided. main parameters that affect sensitivity selectivity indicated their significance sensor signal analyzed. Modern data processing algorithms, employed optimize measurement process signal, considered. existing arrays/e-nose systems for summarized, future prospects challenges encountered with arrays highlighted.

Language: Английский

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IoT-based system of prevention and control for crop diseases and insect pests

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 1, 2024

Environmentally friendly technologies for the prevention and control of crop diseases insect pests are important to reduce use chemical pesticides, improve quality agricultural products, protect environment, promote sustainable development production. On basis Internet Things (IoT) technology, we developed a system with two main components: plant protection device (the hardware) an information management software). To be suitable both facility- field-based production scenarios, incorporated types devices, utilizing ozone sterilization light-trap technologies. The devices were equipped various sensors realize real-time collection monitoring data on environment. has IoT-based architecture includes mobile app enable remote intelligent data. can achieve efficient large-scale equipment applications multi-device collaborative work prevent diseases. operated successfully several years in China been applied cucumber, tomato, rice, other crops. We demonstrate effectiveness practicality greenhouse facility field.

Language: Английский

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Spinel type MCo2O4 (M = Mn, Mg, Ni, Cu, Fe and Zn) for chemoresistance gas sensors

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 36, P. 101928 - 101928

Published: Jan. 24, 2024

Language: Английский

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