Results 141 to 150 of about 264,014 (327)

Methodology for integrated analysis of vector- and spectroscopic bioimpedance methods

open access: yesJournal of Electrical Bioimpedance
Electrical bioimpedance is based on the opposition exerted by body tissues to the passage of an electrical current. This characteristic allows the assessment of the individual's body composition, nutritional status, and hydration status.
Bello José Luis García   +4 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Monitoring inverse-phase emulsion polymerization using electrical impedance spectroscopy

open access: yes, 2015
Inverse-phase emulsion polymerization (IEP) is a widely used technique for synthesizing polyacrylamide, a product in demand for water treatment and in food industries.
Abdollahi, Zohreh   +5 more
core   +1 more source

Electrical characterization of milk samples by electrical impedance spectroscopy (EIS) [PDF]

open access: yes, 2021
This work presents a study of electrical impedance spectroscopy (EIS) as an alternative to characterize milk, aiming to develop an analysis methodology with advantages over other methods, such as portability and low cost. The behavior of the electrical
Lima, Lárissa Kellen Ribeiro de
core  

Electrical impedance spectroscopy on biological barriers

open access: yes, 2022
Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2022; Aachen, Aachener Verfahrenstechnik Series AVT.CVT - Chemical Process Engineering 26, 1 Online-Ressource : Illustrationen, Diagramme (2022).
openaire   +3 more sources

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Tissue Impedance Spectroscopy to Guide Resection of Brain Tumours

open access: yes, 2019
Even expert neurosurgeons are unable to visually differentiate lower grade glioma tissue from normal brain tissue. Therefore, during tumour removal neurosurgeons can only rely on image guidance.
Gesar Ugen   +11 more
core   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

Electrical impedance spectroscopy study of piezoelectric PVDF membranes

open access: yes, 2014
Piezoelectric poly (vinylidene fluoride) (PVDF) membranes were prepared from pre-fabricated membranes by electrically poling in an intense electric field.
Coster, Hans   +5 more
core   +1 more source

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