Results 31 to 40 of about 9,441 (210)
Carbon Nanotubes-Based Potentiometric Bio-Sensors for Determination of Urea
Chemosensors, 2015 The possibility of using disposable plastic-carbon potentiometric sensors as enzyme biosensors was examined. Urease enzyme was immobilized on poly(vinyl chloride) based H+- or NH4+-selective membranes using cellulose acetate.
Ewa Jaworska +2 more
doaj +1 more source
Sensors, 2021 The solid-state ion-selective electrodes presented here are based on the FePO4:Ag2S:polytetrafluoroethylene (PTFE) = 1:1:2 with an addition of (0.25–1)% microwave-synthesized hematite (α-Fe2O3), magnetite (Fe3O4), boehmite [γ-AlO(OH)], and alumina (Al2O3)
Andrea Paut +7 more
doaj +1 more source
Monitoring Physiological Changes in Haloarchaeal Cell during Virus Release
Viruses, 2016 The slow rate of adsorption and non-synchronous release of some archaeal viruses have hindered more thorough analyses of the mechanisms of archaeal virus release.
Julija Svirskaitė +3 more
doaj +1 more source
Membranes, 2022 Use of the nanocomposite of chloride-doped polyaniline nanofibers and multiwalled carbon nanotubes (PANINFs-Cl:MWCNTs) for construction of ion-selective electrodes with solid-contact sensitive to chloride ions has been described. Many types of electrodes
Karolina Pietrzak +3 more
doaj +1 more source
Nanoscale electron transport at the surface of a topological insulator
Nature Communications, 2016 Topological insulators offer lossless surface transport because of the suppression of conduction-electron backscattering from defect sites. Here, the authors show that the nanoscale voltage drops caused by such scattering can be directly measured using ...
Sebastian Bauer, Christian A. Bobisch
doaj +1 more source
Potentiometric Determination of Moxifloxacin by Solid-Contact ISEs in Wastewater Effluents
Chemosensors, 2022 In recent years, the use of ion-selective membranes in the sensing and assessment of environmental contaminants has become a critical goal. Using sodium tetraphenylborate (TPB) and phosphotungstic acid (PTA) as ion-pairing agents, two sensitive and ...
Sherif A. Abdel-Gawad +2 more
doaj +1 more source
Scanning tunneling potentiometry of semiconductor junctions
, 2018 A method for performing scanning tunneling potentiometry of semiconductor heterojunctions is described. The method yields a direct measure of the electrostatic potential distribution across the interface, with microscopic resolution.
Randall Feenstra (3885121) +3 more
core +1 more source
Recent advances in nanoparticle–based potentiometric sensors
Advanced Sensor and Energy MaterialsNanomaterials have become an important research topic in recent years due to the advantages they provide. Nanoparticles, which can be especially applied in many areas of industry, also come to the fore as sensor materials.
Oguz Özbek, Onur Cem Altunoluk
doaj +1 more source
Biosensors, 2022 We constructed a sensor for the determination of Fe2+ and/or Fe3+ ions that consists of a polyaniline layer as an ion-to-electron transducer; on top of it, chelating molecules are deposited (which can selectively chelate specific ions) and protected with
Rimeh Ismail +6 more
doaj +1 more source
A Geometrically Transient Platform for Bioelectronic Implants
Advanced Materials, EarlyView.Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik +13 more
wiley +1 more source