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Journal articles on the topic 'Sensing; Chemoresistive; Electronic nose'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Park, Seo Yun, Yeonhoo Kim, Taehoon Kim, Tae Hoon Eom, Soo Young Kim, and Ho Won Jang. "Chemoresistive materials for electronic nose: Progress, perspectives, and challenges." InfoMat 1, no. 3 (2019): 289–316. http://dx.doi.org/10.1002/inf2.12029.

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2

Hobson, R. S., A. Clausi, Thomas Oh, and A. Guiseppi-Elie. "Temperature correction to chemoresistive sensors in an e-NOSE-ANN system." IEEE Sensors Journal 3, no. 4 (2003): 484–89. http://dx.doi.org/10.1109/jsen.2003.816262.

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3

NANTO, Hidehito. "Electronic Nose System for Kansei-sensing." Hyomen Kagaku 27, no. 1 (2006): 39–45. http://dx.doi.org/10.1380/jsssj.27.39.

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4

Djelouat, Hamza, Amine Ait Si Ali, Abbes Amira, and Faycal Bensaali. "Compressive sensing based electronic nose platform." Digital Signal Processing 60 (January 2017): 350–59. http://dx.doi.org/10.1016/j.dsp.2016.10.006.

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5

Kılınç, N., D. Atilla, S. Öztürk, A. G. Gürek, Z. Z. Öztürk, and Vefa Ahsen. "Oxidizing gas sensing properties of mesogenic copper octakisalkylthiophthalocyanine chemoresistive sensors." Thin Solid Films 517, no. 22 (2009): 6206–10. http://dx.doi.org/10.1016/j.tsf.2009.04.005.

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6

Gaiardo, Andrea, Giulia Zonta, Sandro Gherardi, et al. "Nanostructured SmFeO3 Gas Sensors: Investigation of the Gas Sensing Performance Reproducibility for Colorectal Cancer Screening." Sensors 20, no. 20 (2020): 5910. http://dx.doi.org/10.3390/s20205910.

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Among the various chemoresistive gas sensing properties studied so far, the sensing response reproducibility, i.e., the capability to reproduce a device with the same sensing performance, has been poorly investigated. However, the reproducibility of the gas sensing performance is of fundamental importance for the employment of these devices in on-field applications, and to demonstrate the reliability of the process development. This sensor property became crucial for the preparation of medical diagnostic tools, in which the use of specific chemoresistive gas sensors along with a dedicated algo

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7

Landers, Jay. "‘Electronic Nose’ Aims to Improve Chemical Sensing Capabilities." Civil Engineering Magazine Archive 79, no. 1 (2009): 32–34. http://dx.doi.org/10.1061/ciegag.0000597.

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8

Zhang, Wenli, Fengchun Tian, An Song, Zhenzhen Zhao, Youwen Hu, and Anyan Jiang. "Continuous wide spectrum odor sensing for electronic nose system." Sensor Review 38, no. 2 (2018): 223–30. http://dx.doi.org/10.1108/sr-04-2017-0067.

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Purpose This paper aims to propose an odor sensing system based on wide spectrum for e-nose, based on comprehensive analysis on the merits and drawbacks of current e-nose. Design/methodology/approach The wide spectral light is used as the sensing medium in the e-nose system based on continuous wide spectrum (CWS) odor sensing, and the sensing response of each sensing element is the change of light intensity distribution. Findings Experimental results not only verify the feasibility and effectiveness of the proposed system but also show the effectiveness of least square support vector machine (

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Fabbri, B., S. Gherardi, A. Giberti, V. Guidi, and C. Malagù. "Sensing of gaseous malodors characteristic of landfills and waste treatment plants." Journal of Sensors and Sensor Systems 3, no. 1 (2014): 61–67. http://dx.doi.org/10.5194/jsss-3-61-2014.

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Abstract. We approached the problem of sensing gaseous pollutants and malodors originating as a result of decomposition of organic compounds via chemoresistive sensors. A set of four screen-printed films based on two types of mixed tin and titanium oxides, mixed tungsten and tin oxides, and zinc oxide has been tested vs. the main gaseous components of malodors. N-butanol was also considered because of its importance as a reference gas in the odorimetric intensity scale. We found that, under proper working conditions, the films can sensitively detect such gases either in dry or in wet environme

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10

Shurmer, H. V., P. Corcoran, and M. K. James. "Sensitivity enhancement for gas sensing and electronic nose applications." Sensors and Actuators B: Chemical 16, no. 1-3 (1993): 256–59. http://dx.doi.org/10.1016/0925-4005(93)85191-c.

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11

Cole, Marina, James A. Covington, and Julian W. Gardner. "Combined electronic nose and tongue for a flavour sensing system." Sensors and Actuators B: Chemical 156, no. 2 (2011): 832–39. http://dx.doi.org/10.1016/j.snb.2011.02.049.

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12

Degler, David. "Trends and Advances in the Characterization of Gas Sensing Materials Based on Semiconducting Oxides." Sensors 18, no. 10 (2018): 3544. http://dx.doi.org/10.3390/s18103544.

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The understanding of the fundamental properties and processes of chemoresistive gas sensors based on semiconducting metal oxides is driven by the available characterization techniques and sophisticated approaches used to identify structure-function-relationships. This article summarizes trends and advances in the characterization of gas sensing materials based on semiconducting metal oxides, giving a unique overview of the state of the art methodology used in this field. The focus is set on spectroscopic techniques, but the presented concepts apply to other characterization methods, such as el

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13

Tung, Tran Thanh, Nguyen Viet Chien, Nguyen Van Duy, et al. "Magnetic iron oxide nanoparticles decorated graphene for chemoresistive gas sensing: The particle size effects." Journal of Colloid and Interface Science 539 (March 2019): 315–25. http://dx.doi.org/10.1016/j.jcis.2018.12.077.

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14

Gaiardo, Andrea, David Novel, Elia Scattolo, et al. "Optimization of a Low-Power Chemoresistive Gas Sensor: Predictive Thermal Modelling and Mechanical Failure Analysis." Sensors 21, no. 3 (2021): 783. http://dx.doi.org/10.3390/s21030783.

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The substrate plays a key role in chemoresistive gas sensors. It acts as mechanical support for the sensing material, hosts the heating element and, also, aids the sensing material in signal transduction. In recent years, a significant improvement in the substrate production process has been achieved, thanks to the advances in micro- and nanofabrication for micro-electro-mechanical system (MEMS) technologies. In addition, the use of innovative materials and smaller low-power consumption silicon microheaters led to the development of high-performance gas sensors. Various heater layouts were inv

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15

Sysoev, Victor V., Joachim Goschnick, Thomas Schneider, Evghenii Strelcov, and Andrei Kolmakov. "A Gradient Microarray Electronic Nose Based on Percolating SnO2Nanowire Sensing Elements." Nano Letters 7, no. 10 (2007): 3182–88. http://dx.doi.org/10.1021/nl071815+.

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16

Gan, H. L., Y. B. Che Man, C. P. Tan, I. NorAini, and S. A. H. Nazimah. "Characterisation of vegetable oils by surface acoustic wave sensing electronic nose." Food Chemistry 89, no. 4 (2005): 507–18. http://dx.doi.org/10.1016/j.foodchem.2004.03.005.

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17

Ogorodnik, V., J. Kleperis, I. Taivans, N. Jurka, and M. Bukovskis. "Electronic Nose for Identification of Lung Diseases." Latvian Journal of Physics and Technical Sciences 45, no. 5 (2008): 60–67. http://dx.doi.org/10.2478/v10047-008-0026-2.

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Electronic Nose for Identification of Lung DiseasesIn the paper, the authors analyze the preliminary results of testing a classical gas sensing instrument - the electronic nose (a metal oxide transistor sensor of chemical substances) in a hospital where patients with different lung diseases are treated. To reveal the correlation between the amplitudes of the sensor's responses and the patients' diagnoses, different statistical analysis methods have been used. It is shown that the lung cancer can easily be discriminated from other lung diseases if short breath sampling and analysis time (less t

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18

Lozano, Jesús. "Towards the Miniaturization of Electronic Nose as Personal Measurement Systems." Proceedings 14, no. 1 (2019): 30. http://dx.doi.org/10.3390/proceedings2019014030.

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19

Stolarczyk, Agnieszka, Tomasz Jarosz, and Marcin Procek. "Room Temperature Hydrogen Gas Sensing via Reversible Hydrogenation of Electrochemically Deposited Polycarbazole on Interdigitated Pt Transducers." Sensors 19, no. 5 (2019): 1098. http://dx.doi.org/10.3390/s19051098.

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In this study, polycarbazole (PCz) is presented as a receptor structure for chemoresistive hydrogen sensors. The fabrication of the proposed sensors via electropolymerisation of PCz on interdigitated Pt electrodes is an inexpensive, cost-efficient, and repeatable method. Preliminary results presented in this work show that PCz-based sensors are sensitive to hydrogen gas in the range of 1–4% in air at room temperature. Notably, responses are both relatively high (from approximately 280% for 1% of H2) and rapid (response and recovery times for 1% H2 from 5 s and up to 32 s, respectively). Result

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20

Stuetz, R. M., G. Engin, and R. A. Fenner. "Sewage odour measurements using a sensory panel and an electronic nose." Water Science and Technology 38, no. 3 (1998): 331–35. http://dx.doi.org/10.2166/wst.1998.0228.

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Odour bags from 10 sewage treatment works were used to assess the application of using an electronic nose to monitor sewage related odours. Canonical correlation (a data reduction technique) was used to compare the multivariate data generated by the NOSE (Neotronics Olfactory Sensing Equipment) with independent sensory panel analysis. Comparisons between the NOSE output and threshold odour numbers (TON) showed that no universal relationship exists between the NOSE and TON for sewage odours from a range of locations within different works. However, when similar groups of data from the same work

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21

Mao, Zhenghao, Jianchao Wang, Youjin Gong, Heng Yang, and Shunping Zhang. "A Set of Platforms with Combinatorial and High-Throughput Technique for Gas Sensing, from Material to Device and to System." Micromachines 9, no. 11 (2018): 606. http://dx.doi.org/10.3390/mi9110606.

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In a new E-nose development, the sensor array needs to be optimized to have enough sensitivity and selectivity for gas/odor classification in the application. The development process includes the preparation of gas sensitive materials, gas sensor fabrication, array optimization, sensor array package and E-nose system integration, which would take a long time to complete. A set of platforms including a gas sensing film parallel synthesis platform, high-throughput gas sensing unmanned testing platform and a handheld wireless E-nose system were presented in this paper to improve the efficiency of

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22

Gongora, Andres, Javier Monroy, and Javier Gonzalez-Jimenez. "An Electronic Architecture for Multipurpose Artificial Noses." Journal of Sensors 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/5427693.

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This paper deals with the design of an electronic device aimed at the detection and characterization of volatile chemical substances, that is, an electronic nose (e-nose). We pursue the development of a versatile, multipurpose e-nose that can be employed for a wide variety of applications, can integrate heterogeneous sensing technologies, and can offer a mechanism to be customized for different requirements. To that end, we contribute with a fully configurable and decentralized e-nose architecture based on self-contained and intelligent sensor boards (i.e., modules). This design allows for the

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23

Alvarado, Miriam, Silvia De La Flor, Eduard Llobet, Alfonso Romero, and José Luis Ramírez. "Performance of Flexible Chemoresistive Gas Sensors after Having Undergone Automated Bending Tests." Sensors 19, no. 23 (2019): 5190. http://dx.doi.org/10.3390/s19235190.

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Many sensors are developed over flexible substrates to be used as wearables, which does not guarantee that they will actually withstand being bent. This work evaluates the gas sensing performance of metal oxide devices of three different types, before and after having undergone automated, repetitive bending tests. These tests were aimed at demonstrating that the fabricated sensors were actually flexible, which cannot be taken for granted beforehand. The active layer in these sensors consisted of WO3 nanowires (NWs) grown directly over a Kapton foil by means of the aerosol-assisted chemical vap

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24

Zhang, Wenli, Fengchun Tian, An Song, and Youwen Hu. "Research on electronic nose system based on continuous wide spectral gas sensing." Microchemical Journal 140 (July 2018): 1–7. http://dx.doi.org/10.1016/j.microc.2018.03.030.

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25

Zhao, Zhenzhen, Fengchun Tian, Hailin Liao, Xin Yin, Yan Liu, and Bin Yu. "A novel spectrum analysis technique for odor sensing in optical electronic nose." Sensors and Actuators B: Chemical 222 (January 2016): 769–79. http://dx.doi.org/10.1016/j.snb.2015.08.128.

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26

Russo, Daniel V., Michael J. Burek, Ryan M. Iutzi, James A. Mracek, and Thorsten Hesjedal. "Development of an electronic nose sensing platform for undergraduate education in nanotechnology." European Journal of Physics 32, no. 3 (2011): 675–86. http://dx.doi.org/10.1088/0143-0807/32/3/004.

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27

Esfahani, Siavash, Akira Tiele, Samuel O. Agbroko, and James A. Covington. "Development of a Tuneable NDIR Optical Electronic Nose." Sensors 20, no. 23 (2020): 6875. http://dx.doi.org/10.3390/s20236875.

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Electronic nose (E-nose) technology provides an easy and inexpensive way to analyse chemical samples. In recent years, there has been increasing demand for E-noses in applications such as food safety, environmental monitoring and medical diagnostics. Currently, the majority of E-noses utilise an array of metal oxide (MOX) or conducting polymer (CP) gas sensors. However, these sensing technologies can suffer from sensor drift, poor repeatability and temperature and humidity effects. Optical gas sensors have the potential to overcome these issues. This paper reports on the development of an opti

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28

Zhang, Wen-Li, Zhao-Yu Liu, Heng Wang, et al. "A Novel Type of Feature Extraction Algorithm Based on Multi-Directional Analysis for Visual Optical Electronic Nose." Journal of Nanoelectronics and Optoelectronics 16, no. 3 (2021): 374–79. http://dx.doi.org/10.1166/jno.2021.2981.

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According to the fact that the response images of a visual optical electronic nose (E-nose) have a huge amount of data, various frequency components and complex periodic and directional information, a novel type of visual optical E-nose (VOE-nose) feature extraction algorithm based on multi-directional analysis by directional filter bank (DFB) was proposed in this paper. Firstly, the gas sensing model of the VOE-nose was introduced, and the basic principle of DFB algorithm for feature extraction was described. Second, response images of NO2 in different wavebands were collected by the VOE-nose

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Riscica, F., E. Dirani, A. Accardo, and A. I. Chapoval. "An Inexpensive, Portable, and Versatile Electronic Nose for Illness Detect." Izvestiya of Altai State University, no. 1(117) (March 17, 2021): 47–52. http://dx.doi.org/10.14258/izvasu(2021)1-07.

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Health-care strategies are currently oriented towards non-invasive techniques for an early diagnosis. The chemical analysis seems to be a good answer to accomplish both prevention, a fundamental requirement for an efficient treatment of the disease, and non-invasivity. GC is very accurate but is expensive; its sampling and assaying processes are complicated and time consuming, while its results require expert interpretation. Over the last decade, "electronic sensing" or "e-sensing" technologies have undergone some important developments from both a technical and commercial point of view. Parti

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30

Wilson, Alphus Dan. "Applications of Electronic-Nose Technologies for Noninvasive Early Detection of Plant, Animal and Human Diseases." Chemosensors 6, no. 4 (2018): 45. http://dx.doi.org/10.3390/chemosensors6040045.

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The development of electronic-nose (e-nose) technologies for disease diagnostics was initiated in the biomedical field for detection of biotic (microbial) causes of human diseases during the mid-1980s. The use of e-nose devices for disease-diagnostic applications subsequently was extended to plant and animal hosts through the invention of new gas-sensing instrument types and disease-detection methods with sensor arrays developed and adapted for additional host types and chemical classes of volatile organic compounds (VOCs) closely associated with individual diseases. Considerable progress in a

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31

Fazio, Enza, Salvatore Spadaro, Carmelo Corsaro, et al. "Metal-Oxide Based Nanomaterials: Synthesis, Characterization and Their Applications in Electrical and Electrochemical Sensors." Sensors 21, no. 7 (2021): 2494. http://dx.doi.org/10.3390/s21072494.

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Pure, mixed and doped metal oxides (MOX) have attracted great interest for the development of electrical and electrochemical sensors since they are cheaper, faster, easier to operate and capable of online analysis and real-time identification. This review focuses on highly sensitive chemoresistive type sensors based on doped-SnO2, RhO, ZnO-Ca, Smx-CoFe2−xO4 semiconductors used to detect toxic gases (H2, CO, NO2) and volatile organic compounds (VOCs) (e.g., acetone, ethanol) in monitoring of gaseous markers in the breath of patients with specific pathologies and for environmental pollution cont

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Wedge, David C., Arindam Das, René Dost, et al. "Real-time vapour sensing using an OFET-based electronic nose and genetic programming." Sensors and Actuators B: Chemical 143, no. 1 (2009): 365–72. http://dx.doi.org/10.1016/j.snb.2009.09.030.

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33

Liu, Ke, Jing Zhang, Ling Xu, et al. "Film-based fluorescence sensing: a “chemical nose” for nicotine." Chemical Communications 55, no. 84 (2019): 12679–82. http://dx.doi.org/10.1039/c9cc06771j.

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34

MCCOY, STEPHEN A., TREVOR P. MARTIN, and JAMES F. BALDWIN. "LEARNING RULES FOR ODOUR RECOGNITION IN AN ELECTRONIC NOSE." International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 11, no. 05 (2003): 517–43. http://dx.doi.org/10.1142/s0218488503002314.

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The problem of automating the sensing and classification of odours is one which promises a wide range of industrial applications. During the INTESA project, a prototype electronic nose was developed, using sensors based on novel conducting polymer materials and also more traditional MOS materials. The software component of the prototype processes the transient resistance change signals recorded by the hardware, and classifies the odour sample into one of a number of "odour classes". This paper describes two of the soft computing methods investigated for learning classification rules in this do

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35

Triyana, Kuwat, M. Taukhid Subekti, Prasetyo Aji, Shidiq Nur Hidayat, and Abdul Rohman. "Development of Electronic Nose with Low-Cost Dynamic Headspace for Classifying Vegetable Oils and Animal Fats." Applied Mechanics and Materials 771 (July 2015): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amm.771.50.

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A portable electronic nose (e-nose) using low-cost dynamic headspace and commercially metal oxide gas sensors has been developed. This paper reports evaluation on the performance of the e-nose to classify vegetable oils (sunflower and grape seed oils) and animal fats (mutton, chicken and pig fats). The e-nose consists of a dynamic headspace sampling, a gas sensor array and a real-time data acquisition system based on ATMega-16 microcontroller. The dynamic headspace can divided into two chambers, i.e. sample and gas sensor array room. It is also equipped with three small fans for adjusting sens

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Hirsch, Ofer, Kristina O. Kvashnina, Li Luo, Martin J. Süess, Pieter Glatzel, and Dorota Koziej. "High-energy resolution X-ray absorption and emission spectroscopy reveals insight into unique selectivity of La-based nanoparticles for CO2." Proceedings of the National Academy of Sciences 112, no. 52 (2015): 15803–8. http://dx.doi.org/10.1073/pnas.1516192113.

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The lanthanum-based materials, due to their layered structure and f-electron configuration, are relevant for electrochemical application. Particularly, La2O2CO3 shows a prominent chemoresistive response to CO2. However, surprisingly less is known about its atomic and electronic structure and electrochemically significant sites and therefore, its structure–functions relationships have yet to be established. Here we determine the position of the different constituents within the unit cell of monoclinic La2O2CO3 and use this information to interpret in situ high-energy resolution fluorescence-det

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37

Casanova-Cháfer, Juan, Carla Bittencourt, and Eduard Llobet. "Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors." Beilstein Journal of Nanotechnology 10 (February 27, 2019): 565–77. http://dx.doi.org/10.3762/bjnano.10.58.

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Here we describe the development of chemoresistive sensors employing oxygen-plasma-treated, Au-decorated multiwall carbon nanotubes (MWCNTs) functionalized with self-assembled monolayers (SAMs) of thiols. For the first time, the effects of the length of the carbon chain and its hydrophilicity on the gas sensing properties of SAMs formed on carbon nanotubes are studied, and additionally, the gas sensing mechanisms are discussed. Four thiols differing in the length of the carbon chain and in the hydrophobic or hydrophilic nature of the head functional group are studied. Transmission electron mic

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38

Wu, Zhiyuan, Hanying Zhang, Wentao Sun, et al. "Development of a Low-Cost Portable Electronic Nose for Cigarette Brands Identification." Sensors 20, no. 15 (2020): 4239. http://dx.doi.org/10.3390/s20154239.

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In China, the government and the cigarette industry yearly lose millions in sales and tax revenue because of imitation cigarettes. Usually, visual observation is not enough to identify counterfeiting. An auxiliary analytical method is needed for cigarette brands identification. To this end, we developed a portable, low-cost electronic nose (e-nose) system for brand recognition of cigarettes. A gas sampling device was designed to reduce the influence caused by humidity fluctuation and the volatile organic compounds (VOCs) in the environment. To ensure the uniformity of airflow distribution, the

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39

Dietrich, Stefan, Mihails Kusnezoff, Uwe Petasch, and Alexander Michaelis. "Evaluation of Indium Tin Oxide for Gas Sensing Applications: Adsorption/Desorption and Electrical Conductivity Studies on Powders and Thick Films." Sensors 21, no. 2 (2021): 497. http://dx.doi.org/10.3390/s21020497.

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By combining results of adsorption/desorption measurements on powders and electrical conductivity studies on thick and thin films, the interaction of indium tin oxide with various ambient gas species and carbon monoxide as potential target gas was studied between room temperature and 700 °C. The results show that the indium tin oxide surfaces exhibit a significant coverage of water-related and carbonaceous adsorbates even at temperatures as high as 600 °C. Specifically carbonaceous species, which are also produced under carbon monoxide exposure, show a detrimental effect on oxygen adsorption a

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40

Radi, Radi, Barokah Barokah, Dwi Noor Rohmah, Eka Wahyudi, Muhammad Danu Adhityamurti, and Joko Purwo Leksono Yuroto Putro. "Implementation of an electronic nose for classification of synthetic flavors." Bulletin of Electrical Engineering and Informatics 10, no. 3 (2021): 1283–90. http://dx.doi.org/10.11591/eei.v10i3.3018.

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Classification and identification of synthetic flavor become routine activities in the flavor and food industry due to its application. As a modern olfactory technology, electronic nose (e-nose) has the possibility to be applied in these activities. This study aimed to evaluate an e-nose for classifying synthetic flavors. In this study, an e-nose was designed with an array of gases sensors as the main sensing component and principal component analysis (PCA) for the pattern recognition software. This research was started with preparation of the hardware, continued with preparation of sample, da

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41

DOHARE, Punjan, Sudeshna BAGCHI, and Amol P. BHONDEKAR. "Performance optimisation of a sensing chamber using fluid dynamics simulation for electronic nose applications." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 28, no. 5 (2020): 3068–78. http://dx.doi.org/10.3906/elk-1903-103.

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42

Palaparthy, Vijay S., Shambhulingayya N. Doddapujar, Gaurav Gupta, et al. "E-Nose: Multichannel Analog Signal Conditioning Circuit With Pattern Recognition for Explosive Sensing." IEEE Sensors Journal 20, no. 3 (2020): 1373–82. http://dx.doi.org/10.1109/jsen.2019.2946253.

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43

Khatoon, Zeenat, H. Fouad, H. K. Seo, Mohamed Hashem, Z. A. Ansari, and S. G. Ansari. "Feasibility study of doped SnO2 nanomaterial for electronic nose towards sensing biomarkers of lung cancer." Journal of Materials Science: Materials in Electronics 31, no. 18 (2020): 15751–63. http://dx.doi.org/10.1007/s10854-020-04137-5.

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44

Orzechowska, Sylwia, Andrzej Mazurek, Renata Świsłocka, and Włodzimierz Lewandowski. "Electronic Nose: Recent Developments in Gas Sensing and Molecular Mechanisms of Graphene Detection and Other Materials." Materials 13, no. 1 (2019): 80. http://dx.doi.org/10.3390/ma13010080.

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The aim of the study was to present the possibility of the sensitivity improvement of the electronic nose (e-nose) and to summarize the detection mechanisms of trace gas concentrations. Our main area of interest is graphene, however, for the better understanding of the sensing mechanisms, it is crucial to review other sensors of similar functions. On the basis of our previous research, we explained the detection mechanism which may stay behind the graphene sensor’s sensitivity improvement. We proposed a qualitative interpretation of detection mechanisms in graphene based on the theory regardin

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45

Umar, Akrajas Ali, Muhamad Mat Salleh, and Muhammad Yahaya. "Optical Electronic Nose Based on Fe (III) Complex of Porphyrins Films for Detection of Volatile Compounds." Key Engineering Materials 495 (November 2011): 75–78. http://dx.doi.org/10.4028/www.scientific.net/kem.495.75.

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Electronic nose is a device that attempts to mimic the living being smell system for detection of particular gases or volatile compounds. This paper reports the development of an optical electronic nose using Fe (III) based metalloporphyrins Langmuir-Blodgett thin films as sensing elements for discriminating four volatiles, 2-propanol, acetone, cyclohexane and ethanol. A multilayer feed forward neural network was developed to classify the input vectors from these two sensors. After the network being trained 100 times and introduced to blind samples, it was found that there are three fault deci

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Rasekh, Mansour, Hamed Karami, Alphus Dan Wilson, and Marek Gancarz. "Classification and Identification of Essential Oils from Herbs and Fruits Based on a MOS Electronic-Nose Technology." Chemosensors 9, no. 6 (2021): 142. http://dx.doi.org/10.3390/chemosensors9060142.

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The frequent occurrence of adulterated or counterfeit plant products sold in worldwide commercial markets has created the necessity to validate the authenticity of natural plant-derived palatable products, based on product-label composition, to certify pricing values and for regulatory quality control (QC). The necessity to confirm product authenticity before marketing has required the need for rapid-sensing, electronic devices capable of quickly evaluating plant product quality by easily measurable volatile (aroma) emissions. An experimental MAU-9 electronic nose (e-nose) system, containing a

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Fuentes, Sigfredo, Eden Tongson, Ranjith R. Unnithan, and Claudia Gonzalez Viejo. "Early Detection of Aphid Infestation and Insect-Plant Interaction Assessment in Wheat Using a Low-Cost Electronic Nose (E-Nose), Near-Infrared Spectroscopy and Machine Learning Modeling." Sensors 21, no. 17 (2021): 5948. http://dx.doi.org/10.3390/s21175948.

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Advances in early insect detection have been reported using digital technologies through camera systems, sensor networks, and remote sensing coupled with machine learning (ML) modeling. However, up to date, there is no cost-effective system to monitor insect presence accurately and insect-plant interactions. This paper presents results on the implementation of near-infrared spectroscopy (NIR) and a low-cost electronic nose (e-nose) coupled with machine learning. Several artificial neural network (ANN) models were developed based on classification to detect the level of infestation and regressi

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Behi, Syrine, Nadra Bohli, Juan Casanova-Cháfer, Eduard Llobet, and Adnane Abdelghani. "Metal Oxide Nanoparticle-Decorated Few Layer Graphene Nanoflake Chemoresistors for the Detection of Aromatic Volatile Organic Compounds." Sensors 20, no. 12 (2020): 3413. http://dx.doi.org/10.3390/s20123413.

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Benzene, toluene, and xylene, commonly known as BTX, are hazardous aromatic organic vapors with high toxicity towards living organisms. Many techniques are being developed to provide the community with portable, cost effective, and high performance BTX sensing devices in order to effectively monitor the quality of air. In this paper, we study the effect of decorating graphene with tin oxide (SnO2) or tungsten oxide (WO3) nanoparticles on its performance as a chemoresistive material for detecting BTX vapors. Transmission electron microscopy and environmental scanning electron microscopy are use

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Mohapatra, Punyatoya, Suranjan Panigrahi, and Jayendra Amamcharla. "Evaluation of a commercial electronic nose system coupled with universal gas sensing chamber for sensing indicator compounds associated with meat safety." Journal of Food Measurement and Characterization 9, no. 2 (2015): 121–29. http://dx.doi.org/10.1007/s11694-014-9200-9.

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Banal, James Earl Patrick L., Rey Alfred G. Rañola, Karen S. Santiago, and Fortunato B. Iii Sevilla. "Electronic Nose Based on Conducting Polymers for the Discrimination of Medicinal Plants." Applied Mechanics and Materials 490-491 (January 2014): 1194–98. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1194.

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An electronic nose based on chemiresistors employing conducting polymers as the sensing material was developed for the discrimination of medicinal plants. The conducting polymers were synthesized through potentiostatic electropolymerization and deposited between two gold wires set 200 μm apart on a Teflon substrate. The polymers were doped with several counter ions. The resistance of the doped polymers changed upon exposure to the headspace of of finely-chopped leaves of the following medicinal plants: Vitex negundo (Lagundi), Mentha arvensis (Yerba Buena), Mentha piperita (Peppermint), Artemi

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