Search results for "electrochemical"

showing 10 items of 574 documents

Tuning of solid state properties of Al-Ta mixed oxides

2014

Settore ING-IND/23 - Chimica Fisica Applicatasolid state properties Al-Ta mixed oxides Photoelectrochemistry Electrochemical Impedance Spectroscopy
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A critical analysis of the theory of amorphous semiconductor Schottky barrier for oxides

2014

Settore ING-IND/23 - Chimica Fisica Applicatatheory of amorphous semiconductor Schottky barrier oxides electrochemical impedance spectroscopy
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Electromembrane Processes: Experiments and Modelling

2021

This Special Issue of Membranes journal focuses on electromembrane processes and is motivated by the increasing interest of the scientific community towards their characterization by experiments and modelling for several applications [...]

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciComputer sciencereverse electrodialysisProcess Chemistry and Technologylcsh:TP155-156Filtration and Separationmonovalent selective membranesimulationlcsh:Chemical technologyCharacterization (materials science)acid-base flow batteryMembraneEditorialElectromembrane processn/aChemical Engineering (miscellaneous)lcsh:TP1-1185Biochemical engineeringelectrodialysislcsh:Chemical engineeringCFDelectrochemical intercalation–deintercalationMembranes
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ELECTRICAL ENERGY STORAGE DEVICES BASED ON pH AND SALINITY GRADIENTS: MODELLING, EXPERIMENTS AND PILOTING

2021

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimicipH gradient energyProcess modellingIonic shortcut currentElectrochemical energy storageElectrodialytic batteryIon-exchange membraneWater dissociationbipolar membrane reverse electrodialysielectro-membrane procewastewater valorisationbipolar membrane electrodialysis
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Electrochemical incineration in a micro flow reactor: influence of operative parameters

2010

Settore ING-IND/27 - Chimica Industriale E Tecnologicaelectrochemical incineration formic acid microreactors
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Electrochemical treatment of real wastewater with low conductivity

2018

In the last years, many efforts have been devoted to the development of electrochemical processes for the effective treatment of wastewater contaminated by organic pollutants resistant to conventional biological processes and/or toxic for microorganisms [1–5]. It was shown that some electrochemical approaches, including the direct anodic oxidation at suitable anodes such as boron-doped diamond (BDD) and/or electro-Fenton (EF) at suitable operating conditions and cells [1–6] could allow treating effectively a very large number of organic pollutants. However, most of the investigations were performed using synthetic wastewater. Hence, it is now mandatory to study the problems connected to the…

Settore ING-IND/27 - Chimica Industriale E Tecnologicawastewater low conductivity BDD electrochemical oxidation microfluidic cost analysis
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Electron transfer mechanism in Shewanella loihica PV-4 biofilms formed at graphite electrode

2012

Abstract Electron transfer mechanisms in Shewanella loihica PV-4 viable biofilms formed at graphite electrodes were investigated in potentiostat-controlled electrochemical cells poised at oxidative potentials (0.2 V vs. Ag/AgCl). Chronoamperometry (CA) showed a repeatable biofilm growth of S. loihica PV-4 on graphite electrode. CA, cyclic voltammetry (CV) and its first derivative shows that both direct electron transfer (DET) mediated electron transfer (MET) mechanism contributes to the overall anodic (oxidation) current. The maximum anodic current density recorded on graphite was 90 μA cm − 2 . Fluorescence emission spectra shows increased concentration of quinone derivatives and riboflavi…

ShewanellaElectroactive biofilmBioelectric Energy SourcesExtracellular Electron TransferRiboflavinInorganic chemistryBiophysicsElectrochemical cellElectron TransportElectron transferGraphite electrodeElectrochemistryGraphitePhysical and Theoretical ChemistryElectrodesMicroscopy ConfocalChemistryQuinonesBiofilmmediated electron transferElectrochemical TechniquesGeneral MedicineChronoamperometryAnodeSpectrometry FluorescenceShewanella loihica PV- 4Extracellular Electron Transfer; Shewanella loihica PV- 4; Electroactive biofilms; Graphite electrode; mediated electron transferBiofilmsMicroscopy Electron ScanningGraphiteDifferential pulse voltammetryCyclic voltammetryOxidation-ReductionBioelectrochemistry
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Protein delivery based on uncoated and chitosan-coated mesoporous silicon microparticles

2011

Mesoporous silicon is a biocompatible, biodegradable material that is receiving increased attention for pharmaceutical applications due to its extensive specific surface. This feature enables to load a variety of drugs in mesoporous silicon devices by simple adsorption-based procedures. In this work, we have addressed the fabrication and characterization of two new mesoporous silicon devices prepared by electrochemistry and intended for protein delivery, namely: (i) mesoporous silicon microparticles and (ii) chitosan-coated mesoporous silicon microparticles. Both carriers were investigated for their capacity to load a therapeutic protein (insulin) and a model antigen (bovine serum albumin) …

SiliconMaterials scienceSiliconBSAchemistry.chemical_elementNanotechnology02 engineering and technology010402 general chemistryPorous silicon01 natural sciencesChitosanchemistry.chemical_compoundDrug Delivery SystemsColloid and Surface ChemistryAdsorptionPorous siliconElectrochemistryAnimalsInsulinPhysical and Theoretical ChemistryBovine serum albuminChitosanbiologyProteintechnology industry and agricultureProteinsSerum Albumin BovineSurfaces and InterfacesGeneral Medicine021001 nanoscience & nanotechnologyequipment and suppliesControlled release0104 chemical sciencesMesoporous organosilicachemistryMicroscopy Electron Scanningbiology.proteinElectrochemical pore formationCattle:Investigación::33 Ciencias tecnológicas::3312 Tecnología de materiales [Materias]0210 nano-technologyMesoporous materialBiotechnology
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Green and Integrated Wearable Electrochemical Sensor for Chloride Detection in Sweat

2022

Wearable sensors for sweat biomarkers can provide facile analyte capability and monitoring for several diseases. In this work, a green wearable sensor for sweat absorption and chloride sensing is presented. In order to produce a sustainable device, polylactic acid (PLA) was used for both the substrate and the sweat absorption pad fabrication. The sensor material for chloride detection consisted of silver-based reference, working, and counter electrodes obtained from upcycled compact discs. The PLA substrates were prepared by thermal bonding of PLA sheets obtained via a flat die extruder, prototyped in single functional layers via CO2 laser cutting, and bonded via hot-press. The effect of co…

SilverPolyestersSettore ING-IND/34 - Bioingegneria IndustrialeBiosensing TechniquesElectrochemical TechniquesBiochemistryAtomic and Molecular Physics and OpticsAnalytical ChemistryWearable Electronic DevicesSettore ING-IND/23 - Chimica Fisica ApplicataSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiChloridesSettore ING-IND/17 - Impianti Industriali MeccaniciHumansElectrical and Electronic Engineeringelectrochemical sensors; wearable sensor; chloride detection; electrolyte assisted electrospinning; environmental-friendly; laser cuttingSweatchloride detection electrochemical sensors electrolyte assisted electrospinning environmental-friendly laser cutting wearable sensor Humans Sweat Chlorides Silver Polyesters Electrochemical Techniques Wearable Electronic Devices Biosensing TechniquesInstrumentation
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Ag2 and Ag3 clusters: synthesis, characterization, and interaction with DNA.

2015

Subnanometric samples, containing exclusively Ag2 and Ag3 clusters, were synthesized for the first time by kinetic control using an electrochemical technique without the use of surfactants or capping agents. By combination of thermodynamic and kinetic measurements and theoretical calculations, we show herein that Ag3 clusters interact with DNA through intercalation, inducing significant structural distortion to the DNA. The lifetime of Ag3 clusters in the intercalated position is two to three orders of magnitude longer than for classical organic intercalators, such as ethidium bromide or proflavine. Fil: Buceta, David. Universidad de Santiago de Compostela; España Fil: Busto, Natalia. Unive…

SilverStereochemistryFísico-Química Ciencia de los Polímeros ElectroquímicaIntercalation (chemistry)electrochemical synthesiElectrochemistryCatalysisCatalysiscluster compoundchemistry.chemical_compoundintercalationElectrochemistryProflavineDNA synthesisChemistryChemistry (all)Ciencias QuímicasGeneral ChemistryGeneral MedicineDNAXANESXANESCharacterization (materials science)CrystallographyOrders of magnitude (time)BiochemistrySettore CHIM/03 - Chimica Generale E InorganicaEthidium bromideCLUSTERSKINETIC CONTROLCIENCIAS NATURALES Y EXACTASDNAAngewandte Chemie (International ed. in English)
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