Results 1 to 10 of about 345,466 (293)

Fluctuations of Complex Networks: Electrical Properties of Single Protein Nanodevices

, 2004
We present for the first time a complex network approach to the study of the electrical properties of single protein devices. In particular, we consider an electronic nanobiosensor based on a G-protein coupled receptor.
Akimov, V., Alfinito, E., Gomila, G., Pennetta, C., Reggiani, L.   +4 more
core   +1 more source

Real-Time Monitoring of Stem Cells by Diamond-Based Impedance Sensors

Proceedings, 2017
Cell-based impedance spectroscopy is a promising label-free method for electrical monitoring of cell activity. Here we present a diamond-based impedance sensor with built-in gold interdigitated electrodes (IDEs) as a promising platform for simultaneous ...
Václav Procházka, Roman Matějka, Tibor Ižák, Ondrej Szabó, Jana Štěpanovská, Lucie Bačáková, Alexander Kromka   +6 more
doaj   +1 more source

Characterization of radiation electrophysiological properties of U87 cells induced by ionizing radiation and STAT3 inhibitors under microelectrode matrix sensor

Brain Research Bulletin
Background: Cellular impedance–sensing technology has not been widely used to determine ionizing radiation– induced apoptosis. Method: A cellular electrical impedance–sensing system, including host software and a hardware system consisting of 29 ...
Weijia Fu, Lihua Dong, Yan Gao, Kexin Chen, Qi Huang, Xue Hou, Xueying Bao, Wei Hou, Siyi Hu   +8 more
doaj   +1 more source

Exploratory Study on the Methodology of Fast Imaging of Unilateral Stroke Lesions by Electrical Impedance Asymmetry in Human Heads

The Scientific World Journal, 2014
Stroke has a high mortality and disability rate and should be rapidly diagnosed to improve prognosis. Diagnosing stroke is not a problem for hospitals with CT, MRI, and other imaging devices but is difficult for community hospitals without these devices.
Jieshi Ma, Canhua Xu, Meng Dai, Fusheng You, Xuetao Shi, Xiuzhen Dong, Feng Fu   +6 more
doaj   +1 more source

First Characterization of a New Method for Numerically Solving the Dirichlet Problem of the Two-Dimensional Electrical Impedance Equation

Journal of Applied Mathematics, 2013
Based upon the elements of the modern pseudoanalytic function theory, we analyze a new method for numerically solving the forward Dirichlet boundary value problem corresponding to the two-dimensional electrical impedance equation.
Marco Pedro Ramirez-Tachiquin, Cesar Marco Antonio Robles Gonzalez, Rogelio Adrian Hernandez-Becerril, Ariana Guadalupe Bucio Ramirez   +3 more
doaj   +1 more source

The application of electrochemical impedance spectroscopy for characterizing the degradation of Ni(OH)2/NiOOH electrodes [PDF]

The use of wide-band electrochemical impedance spectroscopy is described for characterizing the degradation of porous Ni(OH)2/NiOOH electrodes in concentrated KOH electrolyte solutions.
Macdonald, Digby D.
core   +1 more source

Delay line and mutual coupling considerations for MST radar antenna arrays [PDF]

, 1983
Basic antenna theory which states that the field radiated from an antenna array is equal to the sum of the currents flowing in each element of the array is discussed.
Brosnahan, J. W.
core   +1 more source

Electrical impedance detects early stages of bone healing: An in vivo explanatory study of tibial fractures in rabbits

Journal of Experimental Orthopaedics
Purpose Healing after bone fracture is assessed by clinical examination and frequent radiographs, which expose patients to radiation and lack standardisation.
Markus Winther Frost, Maria Tirta, Ole Rahbek, Laura Amalie Rytoft, Ming Ding, Ming Shen, Kirsten Duch, Søren Kold   +7 more
doaj   +1 more source

Design of a CMOS closed-loop system with applications to bio-impedance measurements [PDF]

, 2010
This paper proposes a method for impedance measurements based on a closed-loop implementation of CMOS circuits. The proposed system has been conceived for alternate current excited systems, performing simultaneously driving and measuring functions ...
Rueda Rueda, Adoración, Yúfera García, Alberto   +1 more
core  

The effectiveness of cervical mucus electrical impedance compared to basal body temperature to determine fertility window

Contraception and Reproductive Medicine
Background Serial serum hormone measurements and transvaginal ultrasound are reliable measures to predict ovulation. These measures are inconvenient and expensive therefore, basal body temperature charting (BBT) and urine ovulation predictor kits (OPK ...
Suzanne Tabbaa, Sealy Hambright, Katie J. Sikes, Gary Levy, Jan Rydfors   +4 more
doaj   +1 more source