Results 41 to 50 of about 206,634 (222)

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

open access: yesSensing 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   +3 more
doaj   +1 more source

Electrochemical studies of capacitance in cerium oxide thin films and its relationship to anionic and electronic defect densities [PDF]

open access: yes, 2009
Small polaron carrier density in epitaxial, doped CeO_2 thin films under low oxygen partial pressure was determined from electrochemically-measured capacitance after accounting for interfacial effects and shown to agree well with bulk ...
Chueh, William C., Haile, Sossina M.
core   +2 more sources

Impedance spectroscopy of ions at liquid-liquid interfaces

open access: yes, 2013
The possibility to extract properties of an interface between two immiscible liquids, e.g., electrolyte solutions or polyelectrolyte multilayers, by means of impedance spectroscopy is investigated theoretically within a dynamic density functional theory ...
Bier, Markus, Reindl, Andreas
core   +1 more source

Relating membrane potential to impedance spectroscopy

open access: yesJournal 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

Applications of impedance spectroscopy in thermoelectricity [PDF]

open access: yes, 2019
t is widely used in a lot of different fields (solar cells, fuel cells, corrosion, supercapacitors, batteries, etc.). • Powerful and very reliable equipment are available in the market.
Beltrán-Pitarch, Braulio   +1 more
core  

Immittance Spectroscopy of Smart Components and Novel Devices [PDF]

open access: yes, 1994
AC small-signal immittance spectroscopy is employed as a viable tool to demonstrate electrical characterization, performance improvement, and quality assurance issues of smart materials-based components and novel devices. The variation in the ac response,
Alim, Mohammad Anwarul   +2 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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

open access: yesEnergies
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   +4 more
doaj   +1 more source

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

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
Paulo C. Calvo   +4 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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