Sensing bioelectrical signals is of great significance to understand human disease. Reliable bioelectronic interface the guarantee high-quality signals. The unique electrochemical property and mixed ionic electrical conductivity poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) make it an ideal material for skin/tissue–electronic interface. However, pristine PEDOT:PSS-based de...

We present an innovative electrochemical probe for the monitoring of pH, redox potential and conductivity in near-field rocks of deep geological radioactive waste repositories. The probe is composed of a monocrystalline antimony electrode for pH sensing, four AgCl/Ag-based reference or Cl- selective electrodes, one Ag₂S/Ag-based reference or S2- selective electrode, as well as four platinum ele...

The pulsed polarization technique on solid electrolytes is based on alternating potential pulses interrupted by self-discharge pauses. Since even small concentrations of nitrogen oxides (NOx) in the ppm range significantly change the polarization and discharge behavior, pulsed polarization sensors are well suited to measure low amounts of NOx. In contrast to all previous investigations, planar ...

Fabrication and organosilane-functionalization and characterization of nanostructured ITO electrodes are reported. Nanostructured ITO electrodes were obtained by electron beam evaporation, and a subsequent annealing treatment was selectively performed to modify their crystalline state. An increase in geometrical surface area in comparison with thin-film electrodes area was observed by atomic fo...

The aim of this work is to show how the integration of gold nanoparticles (AuNPs) into multi-wall-carbon-nanotubes (MWCNTs) based screen-printed electrodes and into graphene-based screen-printed electrodes (GPHs) could represent a potential way to further enhance the electrochemical properties of those electrodes based on nanoparticles. Laccase from Trametes versicolor (TvL) was immobilized ove...

Abstract Foot impedance plethysmography was implemented using two types of electrodes (dry and capacitive) sole force sensors. The latter are commonly used for assessing diabetic foot ulcers (DFU). For plethysmography, a tetrapolar configuration has been with three different plantar setups: four skin contact electrodes, capacitive Force Sensing Resistors (FSRs). In this work, FSRs have consider...

This investigation, following our recent report on the one-pot hemi-micellar interfacial synthesis of Janus gold nanoclusters and the inter-cluster electron coupling establishing insulator-metal transition in the oriented Janus monolayers [Langmuir, 2010, 26(17), 14047], was to fabricate modified electrodes for sensing dopamine, the neurotransmitter. With a detection limit in the sub-nanomolar ...

We report a two-channel microelectrochemical sensor that communicates between separate sensing and reporting microchannels via one or more bipolar electrodes (BPEs). Depending on the contents of each microchannel and the voltage applied across the BPE, faradaic reactions may be activated simultaneously in both channels. As presently configured, one end of the BPE is designated as the sensing po...

Chronically implantable wireless neural interface devices require biocompatible and stable high density integration of several components such as sensing elements, data processors, communication, and power supply coils. Biocompatible integration technology has been developed for Utah Electrode Array (UEA) based implantable neural interface devices. These interface devices comprise: silicon base...

This paper investigates the effect of water vapour in CO sensing by using Pd doped SnO2 sensors realized in thick film technology as an example of the basic understanding of sensing mechanisms applied to sensors. The results of phenomenological and spectroscopic measurement techniques, all of them obtained under working conditions for sensors, were combined with modelling in order to derive con...