Related Experiment Video
Updated: May 29, 2026

NiO Nanoflowers for Non-Enzymatic Amperometric Detection of Glucose
Published on: December 30, 2025
Gold nanoparticles solid contact for ion-selective electrodes of highly stable potential readings
Ewa Jaworska1, Michał Wójcik, Anna Kisiel
1Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland.
Abstract:
Internal solution free ion-selective electrodes were prepared applying for the first time gold nanoparticles as a solid contact layer. The presence of a layer of gold nanoparticles stabilized with aliphatic thiols at the back side of the membrane resulted in highly stable potentiometric responses of the sensors, good selectivities and close to Nernstian slopes. Electrochemical studies have confirmed that the applied material is effectively working as capacitive solid contact, yielding high stability sensors.
Related Concept Videos
Potentiometry: Types of Electrodes
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
Potentiometry: Membrane Electrodes
Controlled-Potential Coulometry: Electrolytic Methods
The chosen potential ensures...
Electrodes: Overview
There are two main types of electrodes in electrochemical cells. The first type, known as the working or indicator electrode, has a potential that is sensitive to the analyte's concentration and reacts to changes in the...
Electrodeposition
Electrodeposition can...
Potentiometry: Overview

