Results 21 to 30 of about 62,083 (218)

Impedance Spectroscopy Technique for DNA Hybridization

Sensors, 2003
The development of biosensors for detection and identification of DNA sequences by hybridization may reduce assay time and allow direct quantitation of the target.
A. Tlili, A. Abdelghani, S. Hleli
doaj   +1 more source

Electrochemical Impedance Spectroscopy: A New Chapter in the Fast and Accurate Estimation of the State of Health for Lithium-Ion Batteries

Energies, 2023
Lithium-ion batteries stand out from other clean energy sources because of their high energy density and small size. With the increasing application scope and scale of lithium-ion batteries, real-time and accurate monitoring of its state of health plays ...
Ming Zhang, Yanshuo Liu, Dezhi Li, Xiaoli Cui, Licheng Wang, Liwei Li, Kai Wang   +6 more
doaj   +1 more source

Relating membrane potential to impedance spectroscopy

Journal of Electrical Bioimpedance, 2011
Non-invasive, label-free assessment of membrane potential of living cells is still a challenging task. The theory linking membrane potential to the low frequency α dispersion exhibited by suspensions of spherical shelled particles (presenting a net ...
Gheorghiu Eugen
doaj   +1 more source

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

Sensing 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
Paulo C. Calvo, Oscar Campo, Cristian Guerra, Santiago Castaño, Faruk Fonthal   +4 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

A Novel Method for Online Diagnosis of the Aging State of High-Voltage (HV) Cables Based on Impedance Spectroscopy

Energies
In order to facilitate online monitoring of the aging state of high-voltage (HV) cables, a novel method based on impedance spectroscopy has been proposed.
Yuli Wang, Benhong Ouyang, Ge Wang, Anzhe Wang, Jianjun Yuan   +4 more
doaj   +1 more source

The application of detrended fluctuation analysis to assess physical characteristics of the human cell line ECV304 following toxic challenges

Sensing and Bio-Sensing Research, 2019
In this paper we present a non-contact, impedance-based sensor system capable of characterizing the toxic response of cells to three different types of toxin.
Yasser Abd Djawad, David Attwood, Janice Kiely, Richard Luxton   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Impedance Spectroscopy on Hafnium Oxide‐Based Memristive Devices

Advanced Electronic Materials, 2023
Memristive devices for neuromorphic computing have been attracting ever growing attention over the last couple of years. In neuromorphic electronics, memristive devices with multi‐level resistance states are required to accurately reproduce synaptic ...
Richard Marquardt, Finn Zahari, Jürgen Carstensen, George Popkirov, Ole Gronenberg, Gitanjali Kolhatkar, Hermann Kohlstedt, Martin Ziegler   +7 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source