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Journal articles on the topic 'Impedimetric Sensor*'

Author: Grafiati

Published: 1 April 2023

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1

Gongi, Wejdene, Maxence Rube, Hafedh Ben Ouada, Hatem Ben Ouada, Ollivier Tamarin, and Corinne Dejous. "Elaboration and Characterization of a New Heavy Metal Sensor Functionalized by Extracellular Polymeric Substances Isolated from a Tunisian Thermophilic Microalga Strain Graesiella sp." Sensors 23, no. 2 (2023): 803. http://dx.doi.org/10.3390/s23020803.

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The present study aimed to develop and characterize new heavy metal sensors functionalized by extracellular polymeric substances (EPSs) isolated from a Tunisian thermophilic microalga strain Graesiella sp. The elaborated sensor showed a highly homogeneous character and revealed a microstructural lamellar arrangement, high crystalline nature, and several functional groups. Electrochemical impedance spectroscopy (EIS) and acoustic wave sensing were used as sensing techniques to explore the ability of microalgae-EPS-functionalized sensors to detect cadmium and mercury as heavy metals. For impedim

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2

Nakazato, Kazuo. "Chemistry integrated circuit: chemical system on a complementary metal oxide semiconductor integrated circuit." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2012 (2014): 20130109. http://dx.doi.org/10.1098/rsta.2013.0109.

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By integrating chemical reactions on a large-scale integration (LSI) chip, new types of device can be created. For biomedical applications, monolithically integrated sensor arrays for potentiometric, amperometric and impedimetric sensing of biomolecules have been developed. The potentiometric sensor array detects pH and redox reaction as a statistical distribution of fluctuations in time and space. For the amperometric sensor array, a microelectrode structure for measuring multiple currents at high speed has been proposed. The impedimetric sensor array is designed to measure impedance up to 10

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3

Jiang, Keren, Hashem Etayash, Sarfuddin Azmi, et al. "Rapid label-free detection of E. coli using antimicrobial peptide assisted impedance spectroscopy." Analytical Methods 7, no. 23 (2015): 9744–48. http://dx.doi.org/10.1039/c5ay01917f.

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4

Petani, Lisa, Valerie Wehrheim, Liane Koker, et al. "Systematic assessment of the biocompatibility of materials for inkjet-printed ozone sensors for medical therapy." Flexible and Printed Electronics 6, no. 4 (2021): 043003. http://dx.doi.org/10.1088/2058-8585/ac32ab.

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Abstract The biocompatibility of medical sensors is of great importance. In order to prevent harm of the patient during measurement, this aspect must be considered throughout the entire design process. Biocompatibility can be achieved by various methods. For example, the sensor can be encapsulated, only biocompatible materials can be used for the sensor, or anti-inflammatory agents can be applied to the surface of the sensor. In this paper the focus is on sensors fully fabricated from biocompatible materials. Two exemplary inkjet-printed amperometric and impedimetric sensors are systematically

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Hudson, Trevor Q., and Ellis Meng. "A Continuous, Impedimetric Parylene Flow Sensor." Journal of Microelectromechanical Systems 30, no. 3 (2021): 456–70. http://dx.doi.org/10.1109/jmems.2021.3067573.

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6

Chabbah, Taha, Houyem Abderrazak, Radhia Souissi, et al. "A Sensitive Impedimetric Sensor Based on Biosourced Polyphosphine Films for the Detection of Lead Ions." Chemosensors 8, no. 2 (2020): 34. http://dx.doi.org/10.3390/chemosensors8020034.

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In this work, impedimetric sensors were developed for the detection of the four WFD heavy metals Pb2+, Cd2+, Hg2+ and Ni2+, by the modification of a gold electrode with four partially biosourced polyphosphine polymers. These polymers were obtained with satisfactory yields by polycondensation of the bis(4-fluorophenyl)(4-methylphenyl)phosphine sulfide and the bis(4-fluorophenyl)(4-methylphenyl)phosphine oxide using isosorbide or bisphenol A. The chemical structures and number-average molecular weights of the resulting polymers were determined by NMR spectroscopy (1H, 19F, and 31P) and by size e

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7

Rusen, Edina, Aurel Diacon, Alexandra Mocanu, et al. "Synthesis and retention properties of molecularly imprinted polymers for antibiotics containing a 5-nitrofuran ring." RSC Advances 7, no. 80 (2017): 50844–52. http://dx.doi.org/10.1039/c7ra10196a.

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8

Awasthi, Prasoon, Ranjan Mukherjee, Siva Prakasam O Kare, and Soumen Das. "Impedimetric blood pH sensor based on MoS2–Nafion coated microelectrode." RSC Advances 6, no. 104 (2016): 102088–95. http://dx.doi.org/10.1039/c6ra17786g.

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9

Pal, Nabamita, Gaurab Dutta, Khawlah Kharashi, and Erica Murray. "Investigation of an Impedimetric LaSrMnO3-Au/Y2O3-ZrO2-Al2O3 Composite NOx Sensor." Materials 15, no. 3 (2022): 1165. http://dx.doi.org/10.3390/ma15031165.

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Composite NOx sensors were fabricated by combining partially and fully stabilized yttria-doped zirconia with alumina forming a composite electrolyte, Y2O3-ZrO2-Al2O3, and strontium-doped lanthanum manganese oxide mixed with gold to form the composite sensing electrode, La0.8 Sr0.2MnO3-Au. A surface chemistry analysis of the composite sensor was conducted to interpret defects and the structural phases present at the Y2O3-ZrO2-Al2O3 electrolyte, as well as the charge conduction mechanism at the LaSrMnO3-Au electrode surface. Based on the surface chemistry analysis, ionic and electronic transport

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10

Imali, D. Yureka, E. Chavin J. Perera, M. N. Kaumal, and Dhammike P. Dissanayake. "Fabrication and characterization of a flexible and disposable impedance-type humidity sensor based on polyaniline (PAni)." RSC Advances 13, no. 10 (2023): 6396–411. http://dx.doi.org/10.1039/d3ra00009e.

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11

Bai, Huiwen, Kateryna Vyshniakova, Egon Pavlica, et al. "Organic Electrochemical, PEDOT:PSS-Based Impedimetric Histamine Sensor." ECS Meeting Abstracts MA2020-01, no. 29 (2020): 2225. http://dx.doi.org/10.1149/ma2020-01292225mtgabs.

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12

Labib, Mahmoud, Anna S. Zamay, Darija Muharemagic, Alexey V. Chechik, John C. Bell, and Maxim V. Berezovski. "Aptamer-Based Viability Impedimetric Sensor for Viruses." Analytical Chemistry 84, no. 4 (2012): 1813–16. http://dx.doi.org/10.1021/ac203412m.

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13

Labib, Mahmoud, Anna S. Zamay, Olga S. Kolovskaya, et al. "Aptamer-Based Impedimetric Sensor for Bacterial Typing." Analytical Chemistry 84, no. 19 (2012): 8114–17. http://dx.doi.org/10.1021/ac302217u.

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14

Labib, Mahmoud, Anna S. Zamay, Olga S. Kolovskaya, et al. "Aptamer-Based Viability Impedimetric Sensor for Bacteria." Analytical Chemistry 84, no. 21 (2012): 8966–69. http://dx.doi.org/10.1021/ac302902s.

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15

Zhang, Keying, Na Zhang, Li Zhang, Hongyan Wang, Hongwei Shi, and Qiao Liu. "Label-free impedimetric sensing platform for microRNA-21 based on ZrO2-reduced graphene oxide nanohybrids coupled with catalytic hairpin assembly amplification." RSC Advances 8, no. 29 (2018): 16146–51. http://dx.doi.org/10.1039/c8ra02453g.

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16

Kumar, L. S. Selva, Xiao Wang, Joshua Hagen, Rajesh Naik, Ian Papautsky, and Jason Heikenfeld. "Label free nano-aptasensor for interleukin-6 in protein-dilute bio fluids such as sweat." Analytical Methods 8, no. 17 (2016): 3440–44. http://dx.doi.org/10.1039/c6ay00331a.

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17

Cao, Shuo-Hui, Lun-Hui Li, Wen-Yin Wei, et al. "A label-free and ultrasensitive DNA impedimetric sensor with enzymatic and electrical dual-amplification." Analyst 144, no. 14 (2019): 4175–79. http://dx.doi.org/10.1039/c9an00682f.

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18

Pfeffer, Christian, Yue Liang, Helmut Grothe, Bernhard Wolf, and Ralf Brederlow. "Towards Easy-to-Use Bacteria Sensing: Modeling and Simulation of a New Environmental Impedimetric Biosensor in Fluids." Sensors 21, no. 4 (2021): 1487. http://dx.doi.org/10.3390/s21041487.

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Conventional pathogenic bacteria-detection methods are lab-bound, time-consuming and need trained personnel. Microelectrodes can be used to recognize harmful microorganisms by dielectric impedance spectroscopy. However, crucial for this spectroscopy method are the spatial dimensions and layout of the electrodes, as the corresponding distribution of the electric field defines the sensor system parameters such as sensitivity, SNR, and dynamic range. Therefore, a variety of sensor models are created and evaluated. FEM simulations in 2D and 3D are conducted for this impedimetric sensor. The author

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19

Patil, U. V., C. S. Rout та D. J. Late. "Impedimetric humidity sensor based on α-Fe2O3 nanoparticles". Advanced Device Materials 1, № 3 (2015): 88–92. http://dx.doi.org/10.1080/20550308.2015.1133101.

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20

Zlatev, Roumen, Margarita Stoytcheva, Benjamin Valdez, Gisela Montero, and Lydia Toscano. "Simple impedimetric sensor for rapid lipase activity quantification." Talanta 203 (October 2019): 161–67. http://dx.doi.org/10.1016/j.talanta.2019.05.059.

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21

Ben Messaoud, Najib, Abdoullatif Baraket, Cherif Dridi, Naglaa M. Nooredeen, Mohammed Nooredeen Abbas, and Abdelhamid Errachid. "A Highly Sensitive Miniaturized Impedimetric Perchlorate Chemical Sensor." IEEE Sensors Journal 18, no. 4 (2018): 1343–50. http://dx.doi.org/10.1109/jsen.2017.2780445.

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22

Kamal, Ajar, Zhe She, Renu Sharma, and Heinz-Bernhard Kraatz. "Interactions of Hg(ii) with oligonucleotides having thymine–thymine mispairs. Optimization of an impedimetric Hg(ii) sensor." Analyst 142, no. 10 (2017): 1827–34. http://dx.doi.org/10.1039/c7an00238f.

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The present work describes the effect of the number of thymine–thymine mispairs in single strand DNA probes on Hg(ii) interactions and further to develop a highly sensitive DNA based impedimetric sensor for Hg(ii) detection.

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23

Sofer, Zdenek, Daniel Bouša, Jan Luxa, Vlastimil Mazanek, and Martin Pumera. "Few-layer black phosphorus nanoparticles." Chemical Communications 52, no. 8 (2016): 1563–66. http://dx.doi.org/10.1039/c5cc09150k.

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Black phosphorus quantum dots and nanoparticles of a few layer thickness were prepared by easily scalable method; impact electrochemistry of black phosphorus nanoparticles allowed their size determination. Black phosphorus NPs are used as impedimetric methanol vapor sensor.

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24

Antonatos, Nikolas, Vlastimil Mazánek, Petr Lazar, Jiri Sturala, and Zdeněk Sofer. "Acetonitrile-assisted exfoliation of layered grey and black arsenic: contrasting properties." Nanoscale Advances 2, no. 3 (2020): 1282–89. http://dx.doi.org/10.1039/c9na00754g.

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We report herein the successful exfoliation of grey and black arsenic through shear force in acetonitrile. Both exfoliated materials displayed great photothermic effect while black arsenic was shown to be a better candidate for impedimetric volatile organic compounds sensor.

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25

Dzulkurnain, Nurul Akmaliah, Marliyana Mokhtar, Jahwarhar Izuan Abdul Rashid, et al. "A Review on Impedimetric and Voltammetric Analysis Based on Polypyrrole Conducting Polymers for Electrochemical Sensing Applications." Polymers 13, no. 16 (2021): 2728. http://dx.doi.org/10.3390/polym13162728.

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Conducting polymers have been widely used in electrochemical sensors as receptors of the sensing signal’s analytes and transducers. Polypyrrole (PPy) conducting polymers are highlighted due to their good electrical conductive properties, ease in preparation, and flexibility of surface characteristics. The objective of this review paper is to discuss the theoretical background of the two main types of electrochemical detection: impedimetric and voltammetric analysis. It also reviews the application and results obtained from these two electrochemical detections when utilizing PPy as a based sens

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26

Herrmann, Julia, Gunter Hagen, Jaroslaw Kita, Frank Noack, Dirk Bleicker, and Ralf Moos. "Multi-gas sensor to detect simultaneously nitrogen oxides and oxygen." Journal of Sensors and Sensor Systems 9, no. 2 (2020): 327–35. http://dx.doi.org/10.5194/jsss-9-327-2020.

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Abstract. Due to tightened emission limits, the efficiency of exhaust gas aftertreatment systems has to be further enhanced. Therefore, inexpensive and robust NOx sensors are required to be installed not only in automotive exhausts, but also in any other kind of combustion-based application. In this contribution, an impedimetric NOx sensor is presented. The impedance of a functional thick film (KMnO4, manufactured in a screen-printing technique on planar alumina substrates) depends selectively on the NOx concentration in the exhaust but shows a dependency on the oxygen concentration. Therefore

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27

Petani, Lisa, Liane Koker, Janina Herrmann, Veit Hagenmeyer, Ulrich Gengenbach, and Christian Pylatiuk. "Recent Developments in Ozone Sensor Technology for Medical Applications." Micromachines 11, no. 6 (2020): 624. http://dx.doi.org/10.3390/mi11060624.

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There is increasing interest in the utilisation of medical gases, such as ozone, for the treatment of herniated disks, peripheral artery diseases, and chronic wounds, and for dentistry. Currently, the in situ measurement of the dissolved ozone concentration during the medical procedures in human bodily liquids and tissues is not possible. Further research is necessary to enable the integration of ozone sensors in medical and bioanalytical devices. In the present review, we report selected recent developments in ozone sensor technology (2016–2020). The sensors are subdivided into ozone gas sens

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28

Karthick Kannan, Padmanathan, та Ramiah Saraswathi. "An impedimetric ammonia sensor based on nanostructured α-Fe2O3". J. Mater. Chem. A 2, № 2 (2014): 394–401. http://dx.doi.org/10.1039/c3ta13553e.

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29

Wu, Bowan, Zhihua Wang, Dongxia Zhao, and Xiaoquan Lu. "A novel molecularly imprinted impedimetric sensor for melamine determination." Talanta 101 (November 2012): 374–81. http://dx.doi.org/10.1016/j.talanta.2012.09.044.

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30

Bratov, Andrey, Natalia Abramova, Andrey Ipatov, and Angel Merlos. "An impedimetric chemical sensor for determination of detergents residues." Talanta 106 (March 2013): 286–92. http://dx.doi.org/10.1016/j.talanta.2012.10.083.

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31

Arshad, Rabia, Amina Rhouati, Akhtar Hayat, et al. "MIP-Based Impedimetric Sensor for Detecting Dengue Fever Biomarker." Applied Biochemistry and Biotechnology 191, no. 4 (2020): 1384–94. http://dx.doi.org/10.1007/s12010-020-03285-y.

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32

Shi, Liu, Gang Liang, Xiaohong Li, and Xinhui Liu. "Impedimetric DNA sensor for detection of Hg2+ and Pb2+." Analytical Methods 4, no. 4 (2012): 1036. http://dx.doi.org/10.1039/c2ay05758a.

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33

Abramova, Natalia, and Andrey Bratov. "Title Monitoring Protamine-Heparin Interactions Using Microcapillary Impedimetric Sensor." Electroanalysis 27, no. 3 (2015): 663–69. http://dx.doi.org/10.1002/elan.201400581.

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34

Radi, Abd‐Elgawad, Alsayed Eissa, and Tarek Wahdan. "Molecularly Imprinted Impedimetric Sensor for Determination of Mycotoxin Zearalenone." Electroanalysis 32, no. 8 (2020): 1788–94. http://dx.doi.org/10.1002/elan.201900528.

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35

Lu, Tianqi, Ammar Al-Hamry, Junfeng Hao, Yang Liu, Yunze Qu, and Olfa Kanoun. "Machine Learning-Based Multi-Level Fusion Framework for a Hybrid Voltammetric and Impedimetric Metal Ions Electronic Tongue." Chemosensors 10, no. 11 (2022): 474. http://dx.doi.org/10.3390/chemosensors10110474.

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Electronic tongues and artificial gustation for crucial analytes in the environment, such as metal ions, are becoming increasingly important. In this contribution, we propose a multi-level fusion framework for a hybrid impedimetric and voltammetric electronic tongue to enhance the accuracy of K+, Mg2+, and Ca2+ detection in an extensive concentration range (100.0 nM–1.0 mM). The proposed framework extracts electrochemical-based features and separately fuses, in the first step, impedimetric features, which are characteristic points and fixed frequency features, and the voltammetric features, wh

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36

Low, Yu Kong, Jianxiong Chan, Gita V. Soraya, et al. "Development of an Ultrasensitive Impedimetric Immunosensor Platform for Detection of Plasmodium Lactate Dehydrogenase." Sensors 19, no. 11 (2019): 2446. http://dx.doi.org/10.3390/s19112446.

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Elimination of malaria is a global health priority. Detecting an asymptomatic carrier of Plasmodium parasites to receive treatment is an important step in achieving this goal. Current available tools for detection of malaria parasites are either expensive, lacking in sensitivity for asymptomatic carriers, or low in throughput. We investigated the sensitivity of an impedimetric biosensor targeting the malaria biomarker Plasmodium lactate dehydrogenase (pLDH). Following optimization of the detection protocol, sensor performance was tested using phosphate-buffered saline (PBS), and then saliva sa

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37

Tian, Jian, Jiangan Xie, Zhonghua He, Dui Qin, and Xiuxin Wang. "Modeling of an Impedimetric Biosensor with Ultrasonic-Assisted Cell Alignment for the Detection of Yeast." Journal of Sensors 2022 (September 24, 2022): 1–14. http://dx.doi.org/10.1155/2022/4514218.

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Yeast is an integral part of our environment. The detection of yeast is of great significance in many fields. The impedance-based sensor with interdigital microelectrodes is a promising method to establish a simple and portable detection system. However, the positions of yeast cells greatly influence the impedance variation and eventually the sensitivity of detection. In this study, an impedimetric biosensor with ultrasonic-assisted cell alignment for yeast detection was proposed. In order to verify the feasibility of this biosensor, finite element modeling was conducted using the software COM

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38

Betatache, Amina, Mohamed Braiek, Jean François Chateaux, Florence Lagarde, and Nicole Jaffrezic-Renault. "Molecular Imprinted Poly(Ethyleneco-Vinyl Alcohol) Nanofibers Electrospun on Gold Electrodes for Impedimetric Creatinine Sensing." Key Engineering Materials 543 (March 2013): 84–88. http://dx.doi.org/10.4028/www.scientific.net/kem.543.84.

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In this work, a biomimetic sensor elaborated by direct electrospinning of molecular imprinted poly (ethylene co-vinyl alcohol) (EVOH) onto gold electrodes was proposed for impedimetric creatinine detection. Dimethylsulfoxyde (DMSO) was selected as polymer solvent and creatinine (1% wt) was used as template. In the optimal conditions of fabrication (20% wt EVOH, electrical voltage: 20 kV, collection distance: 30 cm), the sensor response was proportional to log [creatinine concentratio in the 1 fg.L-1-1 μg.L-1 range. We also showed that the sensor could be reused at least three times and that th

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Pandey, Chandra Mouli, Gajjala Sumana, and Bansi D. Malhotra. "Microstructured Cystine Dendrites-Based Impedimetric Sensor for Nucleic Acid Detection." Biomacromolecules 12, no. 8 (2011): 2925–32. http://dx.doi.org/10.1021/bm200490b.

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40

Singh, Swati, Ankur Kaushal, Sunil Gupta, and Ashok Kumar. "Gene Specific Impedimetric Bacterial DNA Sensor for Rheumatic Heart Disease." Indian Journal of Microbiology 57, no. 1 (2016): 112–15. http://dx.doi.org/10.1007/s12088-016-0620-6.

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41

Lu, Tianqi, Ammar Al-Hamry, José Mauricio Rosolen, et al. "Flexible Impedimetric Electronic Nose for High-Accurate Determination of Individual Volatile Organic Compounds by Tuning the Graphene Sensitive Properties." Chemosensors 9, no. 12 (2021): 360. http://dx.doi.org/10.3390/chemosensors9120360.

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We investigated functionalized graphene materials to create highly sensitive sensors for volatile organic compounds (VOCs) such as formaldehyde, methanol, ethanol, acetone, and isopropanol. First, we prepared VOC-sensitive films consisting of mechanically exfoliated graphene (eG) and chemical graphene oxide (GO), which have different concentrations of structural defects. We deposited the films on silver interdigitated electrodes on Kapton substrate and submitted them to thermal treatment. Next, we measured the sensitive properties of the resulting sensors towards specific VOCs by impedance spe

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42

Sepunaru, Lior, and Connor Davis. "Impedance Characterization of OECT Behavior in Enzyme-Embedded Conductive Polymer Matrix." ECS Meeting Abstracts MA2022-01, no. 52 (2022): 2151. http://dx.doi.org/10.1149/ma2022-01522151mtgabs.

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Latest generation glucose sensors use small-form wearables which provide continuous data. These devices represent the commercial forefront aiming towards personalized and real-time point-of-care biomedical applications. Currently, device lifetimes are limited due to unknown failure mechanisms and ex-situ calibration strategies. Creating a method for in-situ sensor diagnostics will allow a bottom-up approach for designing enzyme-supporting matrixes and calibration strategies inherent to biosensors. To this end, this work seeks to enhance the understanding of performance, stability, and failure

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Carotenuto, Gianfranco, and Luigi Nicolais. "Electrical Method for In Vivo Testing of Exhalation Sensors Based on Natural Clinoptilolite." Coatings 12, no. 3 (2022): 377. http://dx.doi.org/10.3390/coatings12030377.

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Natural substances with a complex chemical structure can be advantageously used for functional applications. Such functional materials can be found both in the mineral and biological worlds. Owing to the presence of ionic charge carriers (i.e., extra-framework cations) in their crystal lattice, whose mobility is strictly depending on parameters of the external environment (e.g., temperature, humidity, presence of small gaseous polar molecules, etc.), zeolites can be industrially exploited as a novel functional material class with great potentialities in sensors and electric/electronic field. F

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Chakraborty, Titisha, Munmun Das, Chan-Yu Lin, Yen Su, Bing Yuan, and Chyuan-Haur Kao. "ZIF-8 Nanoparticles Based Electrochemical Sensor for Non-Enzymatic Creatinine Detection." Membranes 12, no. 2 (2022): 159. http://dx.doi.org/10.3390/membranes12020159.

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There is a consistent demand for developing highly sensitive, stable, cost-effective, and easy-to-fabricate creatinine sensors as creatinine is a reliable indicator of kidney and muscle-related disorders. Herein, we reported a highly sensitive and selective non-enzymatic electrochemical creatinine sensor via modifying poly(3,4 ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) coated indium tin oxide (ITO) substrate by zeolitic imidazolate framework-8 nanoparticles (ZIF-8 NPs). The topography, crystallinity, and composition of the sensing electrode were characterized by field emission s

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45

Chung, Saeromi, Lars Bode, and Drew A. Hall. "Point-of-care human milk testing for maternal secretor status." Analytical and Bioanalytical Chemistry 414, no. 10 (2021): 3187–96. http://dx.doi.org/10.1007/s00216-021-03697-7.

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AbstractWe present an electrochemical impedimetric-based biosensor for monitoring the variation in human milk oligosaccharide (HMO) composition. 2′-Fucosyllactose (2’FL) is an HMO associated with infant growth, cognitive development, and protection from infectious diarrhea, one of the major causes of infant death worldwide. Due to genetic variation, the milk of some women (non-secretors) contains no or very little 2′FL with potential implications for infant health and development. However, there is currently no technology to analyze the presence and concentration of HMOs in human milk at the p

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46

Carotenuto, Gianfranco. "New Method to Detect Zeolite Breath Sensor Response Based on Low-Power Square-Wave Sources." European Journal of Engineering and Technology Research 4, no. 10 (2019): 152–54. http://dx.doi.org/10.24018/ejeng.2019.4.10.1594.

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Low-power A.C. generators of square-wave or sinusoidal signals can be used in combination with impedimetric sensors to detect stimuli on the basis of the voltage drop taking place at the sensor electrodes. When a.c. generators with a power of only a few µ-Watts are used, this approach becomes extremely sensitive. A very low-power generator is the LCD back panel driving signal, which has a flipping polarity with a voltage of 3-5Vpp, depending on the generator model. This type of square-wave generator is contained in many low-cost handheld digital multimeters, and it is used as signal tracer to

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47

Carotenuto, Gianfranco. "A New Method to Detect Zeolite Breath Sensor Response Based on Low-Power Square-Wave Sources." European Journal of Engineering Research and Science 4, no. 10 (2019): 152–54. http://dx.doi.org/10.24018/ejers.2019.4.10.1594.

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Low-power A.C. generators of square-wave or sinusoidal signals can be used in combination with impedimetric sensors to detect stimuli on the basis of the voltage drop taking place at the sensor electrodes. When a.c. generators with a power of only a few µ-Watts are used, this approach becomes extremely sensitive. A very low-power generator is the LCD back panel driving signal, which has a flipping polarity with a voltage of 3-5Vpp, depending on the generator model. This type of square-wave generator is contained in many low-cost handheld digital multimeters, and it is used as signal tracer to

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48

Wang, Wenyu, Karim Ouaras, Alexandra L. Rutz, et al. "Inflight fiber printing toward array and 3D optoelectronic and sensing architectures." Science Advances 6, no. 40 (2020): eaba0931. http://dx.doi.org/10.1126/sciadv.aba0931.

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Scalability and device integration have been prevailing issues limiting our ability in harnessing the potential of small-diameter conducting fibers. We report inflight fiber printing (iFP), a one-step process that integrates conducting fiber production and fiber-to-circuit connection. Inorganic (silver) or organic {PEDOT:PSS [poly(3,4-ethylenedioxythiophene) polystyrene sulfonate]} fibers with 1- to 3-μm diameters are fabricated, with the fiber arrays exhibiting more than 95% transmittance (350 to 750 nm). The high surface area–to–volume ratio, permissiveness, and transparency of the fiber arr

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Mandayo, Gemma García, Jaime Herrán, Irene Castro-Hurtado, and Enrique Castaño. "Performance of a CO2 Impedimetric Sensor Prototype for Air Quality Monitoring." Sensors 11, no. 5 (2011): 5047–57. http://dx.doi.org/10.3390/s110505047.

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Kang, Su Jin, Suseong Kim, Kyuhong Lee, Ik-Soo Shin, and Yang-Rae Kim. "Tunable Electrochemical Grafting of Diazonium for Highly Sensitive Impedimetric DNA Sensor." Journal of The Electrochemical Society 167, no. 8 (2020): 087504. http://dx.doi.org/10.1149/1945-7111/ab8ce8.

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