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Zeitschriftenartikel zum Thema „Chemoresistor“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 18. Februar 2022

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1

Nemati, Kianoosh, und Saeedeh Rahbarpour. „Selective gas sensitivity of a microporous barrier-equipped chemoresistor“. Measurement Science and Technology 22, Nr. 8 (28.06.2011): 085202. http://dx.doi.org/10.1088/0957-0233/22/8/085202.

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2

Hailin, Ge, und Lin Yucheng. „Characterization of a chemoresistor pH sensor based on conducting polypyrrole“. Sensors and Actuators B: Chemical 21, Nr. 1 (Juli 1994): 57–63. http://dx.doi.org/10.1016/0925-4005(94)01228-8.

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3

Amini, Amir, und Seyed Mohsen Hosseini-Golgoo. „Fast Diagnosis of Volatile Organic Compounds with a Temperature-Modulated Chemoresistor“. Key Engineering Materials 495 (November 2011): 310–13. http://dx.doi.org/10.4028/www.scientific.net/kem.495.310.

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Virtual arrays formed by operating temperature modulation of a commercial non selective chemoresistor have been utilized for gas identification. Here, we are reporting the details of a refined system which distinctly classifies methanol, ethanol, 1-butanol, acetone and hydrogen contaminations in a wide concentration range. A staircase voltage waveform of 5 plateaus is applied to the sensor’s microheater and gas recognition is achieved in 25 s. Sensor’s output is modeled by an “autoregressive moving average with exogenous variables” (ARMAX) model. The modeling parameters obtained for an unknown analyte are utilized as the components of its feature vectors which afford its classification in a feature space. Cross-validation in the 5 to 100 ppm concentration range for H2, and 200 to 2000 ppm for the other analytes examined, resulted in an overall classification success rate of 100%.

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4

Park, S. Y., M. S. Bae, I. D. Jeon und J. J. Lee. „Gas sensing of colloidal polyaniline in a chemoresistor consisting of nanometer electrodes“. Microelectronic Engineering 88, Nr. 9 (September 2011): 3035–42. http://dx.doi.org/10.1016/j.mee.2011.05.003.

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5

Hossein-Babaei, Faramarz, Mohammad Paknahad und Vahid Ghafarinia. „A miniature gas analyzer made by integrating a chemoresistor with a microchannel“. Lab on a Chip 12, Nr. 10 (2012): 1874. http://dx.doi.org/10.1039/c2lc00035k.

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6

Zhang, Wangyang, Xiaoqiang Zhao, Lina Diao, Hao Li, Zhonghao Tong, Zhiqi Gu, Bin Miao et al. „Highly Sensitive Uric Acid Detection Based on a Graphene Chemoresistor and Magnetic Beads“. Biosensors 11, Nr. 9 (29.08.2021): 304. http://dx.doi.org/10.3390/bios11090304.

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In this study, we developed a low-cost, reusable, and highly sensitive analytical platform for the detection of the human metabolite uric acid (UA). This novel analysis platform combines the graphene chemoresistor detection technique with a magnetic bead (MB) system. The heterojunction (single-layer graphene and HfO2 thin-film material) of our graphene-based biosensor worked as a transducer to detect the pH change caused by the specific catalytic reaction between UA and uricase, and hence acquires a UA concentration. Immobilization of uricase on MBs can decouple the functionalization steps from the sensor surface, which allows the sensor to be reusable. Our microsensor platform exhibits a relatively lower detection limit (1 μM), high sensitivity (5.6 mV/decade), a linear range (from 1 μM to 1000 μM), and excellent linearity (R2 = 0.9945). In addition, interference assay and repeatability tests were conducted, and the result suggests that our method is highly stable and not affected by common interfering substances (glucose and urea). The integration of this high-performance and compact biosensor device can create a point-of-care diagnosis system with reduced cost, test time, and reagent volume.

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Cole, Marina, Nicola Ulivieri, Jesús Garcı́a-Guzmàn und Julian W. Gardner. „Parametric model of a polymeric chemoresistor for use in smart sensor design and simulation“. Microelectronics Journal 34, Nr. 9 (September 2003): 865–75. http://dx.doi.org/10.1016/s0026-2692(03)00131-9.

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8

Kukla, A. L., A. S. Pavluchenko, V. A. Kotljar, Yu M. Shirshov, N. V. Konoshchuk, O. Yu Posudievsky und V. D. Pokhodenko. „UTILIZATION OF THIN ELECTROPOLYMERIZED POLYPYRROLE AND POLYANILINE FILMS AS SENSITIVE LAYERS IN CHEMORESISTOR SENSOR ARRAYS“. Sensor Electronics and Microsystem Technologies 2, Nr. 2 (18.10.2014): 42–47. http://dx.doi.org/10.18524/1815-7459.2005.2.112300.

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9

Arseniev, A., A. Nefedova, A. Ganeeva, A. Nefedov, S. Novikov, Anton Barchuk, S. Kanaev et al. „COMBINED DIAGNOSTICS OF LUNG CANCER USING EXHALED BREATH ANALSYSIS AND SPUTUM CYTOLOGY“. Problems in oncology 66, Nr. 4 (01.04.2020): 381–84. http://dx.doi.org/10.37469/0507-3758-2020-66-4-381-384.

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In this article we summarize our own experience of lung cancer diagnostics using exhaled breath analysis with a non-selective method using metal oxide chemoresistor gas sensors with cross-sensitivity combined with the sputum cytology. Volatile organic compounds of exhaled breath change the conductivity of the sensor, the resulting pulse is displayed as a peak on the graph, the area of which is used as test results. The combination of two diagnostic techniques in 204 participants demonstrated the possibility of non-invasively detecting the disease at an early stage. The sensitivity, specificity and accuracy of the breath analysis was 91.2%, 100% and 93.4%, respectively. The combination of the breath test and the sputum cytology compared to the breath test alone showed statistically significant (p = 0.03) increase in sensitivity to 96.8% (95% CI: 80.9% -99%) with acceptable decrease in specificity to 93.4% (95% CI: 88% -96%). The convenience of analysis and realtime measurements show some promise for the early detection.

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Iwaki, T., J. A. Covington, F. Udrea und J. W. Gardner. „Identification and quantification of different vapours using a single polymer chemoresistor and the novel dual transient temperature modulation technique“. Sensors and Actuators B: Chemical 141, Nr. 2 (September 2009): 370–80. http://dx.doi.org/10.1016/j.snb.2009.06.050.

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11

Kałużyński, Piotr Dariusz, Marcin Procek und Agnieszka Stolarczyk. „Impact of UV radiation on sensing properties of conductive polymer and ZnO blend for NO2 gas sensing at room temperature“. Photonics Letters of Poland 11, Nr. 3 (30.09.2019): 69. http://dx.doi.org/10.4302/plp.v11i3.911.

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In this paper we present an investigation on UV radiation on organic-inorganic blend made from conductive polymer (regio-regular poly(3-hexyltiophene) (rr-P3HT) and zinc oxide (ZnO) nanomaterial, which was used as a sensing layer for chemoresistor structure. The study showed that UV radiation has a significant impact on the dynamics of the response of the sensor being studied, which can be a significant element to improve the operation of such sensors at room temperature. Full Text: PDF ReferencesKampa, M.., Castanas, E., "Human health effects of air pollution," Environ. Pollut. 151(2), 362-367 (2008). CrossRef Procek, M., Stolarczyk, A., Pustelny, T.., Maciak, E., "A Study of a QCM Sensor Based on TiO2 Nanostructures for the Detection of NO2 and Explosives Vapours in Air.," Sensors (Basel). 15(4), 9563-9581, MDPI AG (2015). CrossRef Procek M., Stolarczyk A., "Influence of near UV irradiation on ZnO nanomaterials NO2 gas sensing properties," Proc. SPIE 10830, 13th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 108300P (14 August 2018); doi: 10.1117/12.2503471 CrossRef Procek M., Stolarczyk A., Maciak E., "Study of the impact ofUV radiation on NO2 sensing properties of graft comb copolymers of poly(3-hexylthiophene) at room temperature," Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550N (1 September 2017); doi: 10.1117/12.2282777 CrossRef Djurišić, A.B. & Ng, Alan Man Ching & Chen, Xinyi. (2010). ZnO Nanostructures for Optoelectronics: Material Properties and Device Applications. Progress in Quantum Electronics. 34. 191-259. 10.1016/j.pquantelec.2010.04.001. CrossRef Xie, Tao & Xie, Guangzhong & Du, Hongfei & Su, Yuanjie & Ye, Zongbiao & Chen, Yuyan & Jiang, Yadong. (2015). Two novel methods for evaluating the performance of OTFT gas sensors. Sensors and Actuators B: Chemical. 230. 10.1016/j.snb.2015.12.056. CrossRef Procek, M.; Stolarczyk, A.; Pustelny, T. Impact of Temperature and UV Irradiation on Dynamics of NO2 Sensors Based on ZnO Nanostructures. Nanomaterials 2017, 7, 312. CrossRef

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12

Gutierrez-Osuna, R., A. Gutierrez-Galvez und N. Powar. „Transient response analysis for temperature-modulated chemoresistors“. Sensors and Actuators B: Chemical 93, Nr. 1-3 (August 2003): 57–66. http://dx.doi.org/10.1016/s0925-4005(03)00248-x.

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13

Gosangi, Rakesh, und Ricardo Gutierrez-Osuna. „Active Temperature Programming for Metal-Oxide Chemoresistors“. IEEE Sensors Journal 10, Nr. 6 (Juni 2010): 1075–82. http://dx.doi.org/10.1109/jsen.2010.2042165.

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14

Pargoletti, Eleonora, Umme H. Hossain, Iolanda Di Bernardo, Hongjun Chen, Thanh Tran-Phu, Josh Lipton-Duffin, Giuseppe Cappelletti und Antonio Tricoli. „Room-temperature photodetectors and VOC sensors based on graphene oxide–ZnO nano-heterojunctions“. Nanoscale 11, Nr. 47 (2019): 22932–45. http://dx.doi.org/10.1039/c9nr08901b.

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Here, we show 3D nanoarchitectures comprising integrated GO–ZnO heterojunctions for either room temperature sensing of ppb volatile biomarkers or response to UV light, showcasing their applicability as chemoresistors and visible-blind photodetectors.

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15

Brunet, J., A. Pauly, M. Dubois, C. Varenne, K. Guerin und A. Ndiaye. „New Indigo/Nanocarbons Hybrid Material as Chemical Filter for the Enhancement of Gas Sensor Selectivity towards Nitrogen Dioxide“. Key Engineering Materials 605 (April 2014): 135–38. http://dx.doi.org/10.4028/www.scientific.net/kem.605.135.

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A new hybrid material performed by the immobilization of indigo particles on nanocarbonaceous matrix has been developed, characterized and implemented with chemoresistors. If phthalocyanine-based chemoresistors provide a high sensitivity, a low threshold of detection and a partial selectivity towards oxidizing pollutants, indigo/nanocarbons hybrid material acts as a selective ozone filter from air sample and so strongly enhances the sensor selectivity towards nitrogen dioxide. The functionalization, highlighted by scanning electron microscopy, X-ray diffraction and thermogravimetric analysis, occurs in a non-covalent way and proceeds through pi-stacking interactions. With filtering yields higher than 99.5% for ozone and less than 5% for nitrogen dioxide, indigo adsorbed onto multi-wall carbon nanotubes has been identified as the most selective filtering material while exhibiting a much greater durability than indigo or nanotubes separately. Associated to phthalocyanine-based gas sensor, the sustainable, selective and real-time monitoring of NO2 in ppb range has been successfully achieved.

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16

Macagnano, Antonella, Viviana Perri, Emiliano Zampetti, Anna Marie Ferretti, Francesca Sprovieri, Nicola Pirrone, Andrea Bearzotti, Giulio Esposito und Fabrizio De Cesare. „Elemental mercury vapor chemoresistors employing TIO2 nanofibers photocatalytically decorated with Au-nanoparticles“. Sensors and Actuators B: Chemical 247 (August 2017): 957–67. http://dx.doi.org/10.1016/j.snb.2017.03.037.

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17

Zampetti, E., S. Pantalei, A. Bearzotti, C. Bongiorno, F. De Cesare, C. Spinella und A. Macagnano. „TiO2 Nanofibrous Chemoresistors Coated with PEDOT and PANi Blends for High Performance Gas Sensors“. Procedia Engineering 47 (2012): 937–40. http://dx.doi.org/10.1016/j.proeng.2012.09.300.

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18

Pargoletti, Eleonora, Antonio Tricoli, Mariangela Longhi, Gian Luca Chiarello und Giuseppe Cappelletti. „Disclosing the Sensitivity and Selectivity of Metal Oxide/Graphene Oxide-Based Chemoresistors towards VOCs“. Engineering Proceedings 6, Nr. 1 (19.05.2021): 18. http://dx.doi.org/10.3390/i3s2021dresden-10163.

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Nowadays, gas sensors play a vital role in a plethora of applications. However, there are still some important shortcomings, such as the scarce selectivity and sensitivity, especially at low operating temperatures. Herein, we report the successful sensing achieved by tailoring the chemoresistive materials comprised of graphene oxide (GO) sheets well-integrated in a three-dimensional network of n-type metal oxide semiconductors (MOS). Thanks to the synergistic effect between GO and MOS under UV light, we obtained a very good sensitivity (down to 100 ppb) towards different volatile organic compounds (VOCs, i.e., ethanol, acetone, ethylbenzene, toluene) even at room temperature. Moreover, the best performing sensor (SnO2/GO 32:1) resulted in being highly selective towards polar compounds, such as acetone.

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19

GUTIERREZ-OSUNA, RICARDO, und NILESH U. POWAR. „ODOR MIXTURES AND CHEMOSENSORY ADAPTATION IN GAS SENSOR ARRAYS“. International Journal on Artificial Intelligence Tools 12, Nr. 01 (März 2003): 1–16. http://dx.doi.org/10.1142/s0218213003001083.

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Inspired by the process of olfactory adaptation in biological olfactory systems, this article presents two algorithms that allow a chemical sensor array to reduce its sensitivity to odors previously detected in the environment. The first algorithm is based on a committee machine of linear discriminant functions that operate on multiple subsets of the overall sensory input. Adaptation occurs by depressing the voting strength of discriminant functions that display higher sensitivity to previously detected odors. The second algorithm is based on a topology-preserving linear projection derived from Fisher's class separability criteria. In this case, the process of adaptation is implemented through a reformulation of the between-to-within-class scatter eigenvalue problem. The proposed algorithms are validated on two datasets of binary and ternary mixtures of organic solvents using an array of temperature-modulated metal-oxide chemoresistors.

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Thamri, Atef, Hamdi Baccar, Juan Casanova-Chafer, Moataz Billeh Mejri, Eduard Llobet und Adnane Abdelghani. „Thiol-Amine Functionalized Decorated Carbon Nanotubes for Biomarker Gases Detection“. Chemosensors 9, Nr. 5 (23.04.2021): 87. http://dx.doi.org/10.3390/chemosensors9050087.

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Thousands of gas molecules are expelled in exhaled breath, and some of them can reveal diseases and metabolomic disorders. For that reason, the development of fast, inexpensive, and reliable sensing devices has been attracting growing interest. Here, we present the development of different chemoresistors based on multi-walled carbon nanotubes (MWCNTs) decorated with platinum (MWCNT/Pt) and palladium (MWCNT/Pt) nanoparticles and also functionalized with a self-assembled monolayer (SAM) of 11-amino-1-undecanethiol (Thiol-amine). The nanocomposites developed are a proof-of-concept to detect some biomarker molecules. Specifically, the capability to identify and measure different concentrations of volatile organic compounds (VOCs), either aromatic (toluene and benzene) and non-aromatic (ethanol and methanol) was assessed. As a result, this paper reports the significant differences in sensing performance achieved according to the metal nanoparticle used, and the high sensitivity obtained when SAMs are grown on the sensitive film, acting as a receptor for biomarker vapours.

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Behi, Syrine, Nadra Bohli, Juan Casanova-Cháfer, Eduard Llobet und Adnane Abdelghani. „Metal Oxide Nanoparticle-Decorated Few Layer Graphene Nanoflake Chemoresistors for the Detection of Aromatic Volatile Organic Compounds“. Sensors 20, Nr. 12 (17.06.2020): 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 used as morphological characterization techniques. SnO2-decorated graphene displayed high sensitivity towards benzene, toluene, and xylene with the lowest tested concentrations of 2 ppm, 1.5 ppm, and 0.2 ppm, respectively. In addition, we found that, by employing these nanomaterials, the observed response could provide a unique double signal confirmation to identify the presence of benzene vapors for monitoring occupational exposure in the textiles, painting, and adhesives industries or in fuel stations.

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Pargoletti, Eleonora, und Giuseppe Cappelletti. „Breakthroughs in the Design of Novel Carbon-Based Metal Oxides Nanocomposites for VOCs Gas Sensing“. Nanomaterials 10, Nr. 8 (29.07.2020): 1485. http://dx.doi.org/10.3390/nano10081485.

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Nowadays, the detection of volatile organic compounds (VOCs) at trace levels (down to ppb) is feasible by exploiting ultra-sensitive and highly selective chemoresistors, especially in the field of medical diagnosis. By coupling metal oxide semiconductors (MOS e.g., SnO2, ZnO, WO3, CuO, TiO2 and Fe2O3) with innovative carbon-based materials (graphene, graphene oxide, reduced graphene oxide, single-wall and multi-wall carbon nanotubes), outstanding performances in terms of sensitivity, selectivity, limits of detection, response and recovery times towards specific gaseous targets (such as ethanol, acetone, formaldehyde and aromatic compounds) can be easily achieved. Notably, carbonaceous species, highly interconnected to MOS nanoparticles, enhance the sensor responses by (i) increasing the surface area and the pore content, (ii) favoring the electron migration, the transfer efficiency (spillover effect) and gas diffusion rate, (iii) promoting the active sites concomitantly limiting the nanopowders agglomeration; and (iv) forming nano-heterojunctions. Herein, the aim of the present review is to highlight the above-mentioned hybrid features in order to engineer novel flexible, miniaturized and low working temperature sensors, able to detect specific VOC biomarkers of a human’s disease.

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23

Di Natale, Corrado, Antonella Macagnano, Sara Nardis, Roberto Paolesse, Christian Falconi, Emanuela Proietti, Pietro Siciliano, Roberto Rella, Antonella Taurino und Arnaldo D’Amico. „Comparison and integration of arrays of quartz resonators and metal-oxide semiconductor chemoresistors in the quality evaluation of olive oils“. Sensors and Actuators B: Chemical 78, Nr. 1-3 (August 2001): 303–9. http://dx.doi.org/10.1016/s0925-4005(01)00830-9.

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24

Rusinek, Robert, Dominik Kmiecik, Marzena Gawrysiak-Witulska, Urszula Malaga-Toboła, Sylwester Tabor, Pavol Findura, Aleksander Siger und Marek Gancarz. „Identification of the Olfactory Profile of Rapeseed Oil as a Function of Heating Time and Ratio of Volume and Surface Area of Contact with Oxygen Using an Electronic Nose“. Sensors 21, Nr. 1 (05.01.2021): 303. http://dx.doi.org/10.3390/s21010303.

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The process of deep fat frying is the most common technological procedure applied to rapeseed oil. During heat treatment, oil loses its nutritional properties and its original consumer quality is lowered, which is often impossible to determine by organoleptic assessment. Therefore, the aim of the study was to correlate markers of the loss of the nutritional properties by rapeseed oil related to the frying time and the surface area of contact with oxygen with changes in the profile of volatile compounds. The investigations involved the process of 6-, 12-, and 18-h heating of oil with a surface-to-volume ratio (s/v ratio) of 0.378 cm−1, 0.189 cm−1, and 0.126 cm−1. Samples were analysed to determine changes in the content of polar compounds, colour, fatty acid composition, iodine value, and total chromanol content. The results were correlated with the emission of volatile compounds determined using gas chromatography and an electronic nose. The results clearly show a positive correlation between the qualitative degradation of the oil induced by prolonged heating and the response of the electronic nose to these changes. The three volumes, the maximum reaction of the metal oxide semiconductor chemoresistors, and the content of polar compounds increased along the extended frying time.

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Pargoletti, Eleonora, Simone Verga, Gian Luca Chiarello, Mariangela Longhi, Giuseppina Cerrato, Alessia Giordana und Giuseppe Cappelletti. „Exploring SnxTi1−xO2 Solid Solutions Grown onto Graphene Oxide (GO) as Selective Toluene Gas Sensors“. Nanomaterials 10, Nr. 4 (15.04.2020): 761. http://dx.doi.org/10.3390/nano10040761.

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The major drawback of oxide-based sensors is the lack of selectivity. In this context, SnxTi1−xO2/graphene oxide (GO)-based materials were synthesized via a simple hydrothermal route, varying the titanium content in the tin dioxide matrix. Then, toluene and acetone gas sensing performances of the as-prepared sensors were systematically investigated. Specifically, by using 32:1 SnO2/GO and 32:1 TiO2/GO, a greater selectivity towards acetone analyte, also at room temperature, was obtained even at ppb level. However, solid solutions possessing a higher content of tin relative to titanium (as 32:1 Sn0.55Ti0.45O2/GO) exhibited higher selectivity towards bigger and non-polar molecules (such as toluene) at 350 °C, rather than acetone. A deep experimental investigation of structural (XRPD and Raman), morphological (SEM, TEM, BET surface area and pores volume) and surface (XPS analyses) properties allowed us to give a feasible explanation of the different selectivity. Moreover, by exploiting the UV light, the lowest operating temperature to obtain a significant and reliable signal was 250 °C, keeping the greater selectivity to the toluene analyte. Hence, the feasibility of tuning the chemical selectivity by engineering the relative amount of SnO2 and TiO2 is a promising feature that may guide the future development of miniaturized chemoresistors.

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Macagnano, Antonella, Viviana Perri, Emiliano Zampetti, Anna Marie Ferretti, Francesca Sprovieri, Nicola Pirrone, Andrea Bearzotti, Giulio Esposito und Fabrizio De Cesare. „Corrigendum to “Elemental mercury vapor chemoresistors employing TIO2 nanofibers photocatalytically decorated with Au-nanoparticles” [Sens. Actuators B 247 (2017) 957–967]“. Sensors and Actuators B: Chemical 251 (November 2017): 1119. http://dx.doi.org/10.1016/j.snb.2017.04.189.

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