Results 1 to 10 of about 6,977,112 (183)

Electrical impedance spectroscopy (EIS) for biological analysis and food characterization: a review [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2017
Abstract. Electrical impedance spectroscopy (EIS), in which a sinusoidal test voltage or current is applied to the sample under test to measure its impedance over a suitable frequency range, is a powerful technique to investigate the electrical properties of a large variety of materials.
Marco Grossi, Bruno Ricco
exaly   +7 more sources

Design of using chamber system based on electrical impedance spectroscopy (EIS) to measure epithelial tissue [PDF]

open access: yesSensing and Bio-Sensing Research, 2020
This work aims to propose a Ussing chamber system based on electrical impedance spectroscopy (EIS) for measuring impedance in epithelial tissues. The proposed method is composed of two functional parts: Ussing chambers (UC) where the tissue under test is located, and the other is a homemade electrical impedance spectroscopy system.
Paulo C Calvo, Oscar Campo, F Fonthal
exaly   +4 more sources

Electrical characterization of milk samples by Electrical Impedance Spectroscopy (EIS) [PDF]

open access: yesQuarks: Brazilian Electronic Journal of Physics, Chemistry and Materials Science, 2022
This work presents a study of electrical impedance spectroscopy (EIS) as an alternative to characterize milk, aiming to develop an analysis methodology. The behavior of the electrical impedance module, the real part and the imaginary part (reactance), and the derived quantities such as admittance, phase and diffusion coefficient (D) were also analyzed ...
Lárissa Kellen Ribeiro de Lima   +5 more
openaire   +2 more sources

Electrical Impedance Spectroscopy (EIS) characterization of saline solutions with a low-cost portable measurement system

open access: yesEngineering Science and Technology, an International Journal, 2019
Electrical Impedance Spectroscopy (EIS), a powerful technique used for wide range of applications, is usually carried out by means of benchtop instrumentation (LCR meters and ìmpedance analyzers), not suited for in-the-field measurements performed outside a laboratory.In this paper a new portable electronic system for EIS on liquid and semi-liquid ...
Beatrice Vitali   +2 more
exaly   +4 more sources

Electrical impedance spectroscopy (EIS) in plant roots research: a review [PDF]

open access: yesPlant Methods, 2021
AbstractNondestructive testing of plant roots is a hot topic in recent years. The traditional measurement process is time-consuming and laborious, and it is impossible to analyze the state of plant roots without destroying the sample. Recent studies have shown that as an excellent nondestructive measurement method, although electrical impedance ...
Yang Liu   +5 more
openaire   +3 more sources

Prognostic value of Electrical Impedance Spectroscopy (EIS) when used as an adjunct to Colposcopy – a longitudinal study

open access: yesJournal of Electrical Bioimpedance, 2020
Abstract Objective Colposcopy can be used with Electrical Impedance Spectroscopy (EIS) as an adjunct, to assess the presence of High Grade Cervical Intra-epithelial Neoplasia (CIN2+). This analysis of longitudinal data has used the results from women with a negative colposcopy, in order to see ...
Brown, B.H., Highfield, P.E., Tidy, J.A.
openaire   +4 more sources

Dual-mode CMOS analog front-end (AFE) for electrical impedance spectroscopy (EIS) systems [PDF]

open access: yes2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2016
This paper presents the operation of a dual-mode wideband CMOS analog front-end (AFE) for electrical impedance spectroscopy. The chip combines two current-readout (CR) channels and four voltage-readout (VR) channels suitable for both bipolar and tetrapolar EIS analysis.
Virgilio Valente   +2 more
openaire   +2 more sources

Electrical impedance spectroscopy (EIS) in the urinary bladder: the effect of inflammation and edema on identification of malignancy

open access: yesIEEE Transactions on Medical Imaging, 2002
Previous studies have shown that tetrapolar electrical impedance spectroscopy measurements can identify cervical interstitial neoplasia with the same sensitivity and specificity as cervical smears. In the urinary bladder, the same technique yields significant differences (p < 0.05 at seven frequencies between 9.6 and 614 kHz) between normal and ...
Rod H. Smallwood   +4 more
openaire   +2 more sources

Low-Voltage Electrowetting on Dielectrics Integrated and Investigated with Electrical Impedance Spectroscopy (LV-EWOD-EIS) [PDF]

open access: yes, 2022
Die Elektrobenetzung auf Dielektrika („Electrowetting On Dielectrics“ – EWOD) ist ein elektrisch steuerbarer Benetzungseffekt, der seine Anwendung in verschiedenen Gebieten findet, von Optik, über Bildschirme bis hin zu Lab-on-a-Chip-Systemen.
Li, Yingjia   +4 more
openaire   +2 more sources

Electrical Impedance Spectroscopy (EIS) for Photovoltaic Materials: Possibilities and Challenges

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Electrical Impedance Spectroscopy (EIS) is a noninvasive material characterization technique which provides the frequency response of the electrical impedance of materials under test as the signature of the material properties.
openaire   +1 more source

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