title: Gold nanoparticles solid contact for ion-selective electrodes of highly stable potential readings.
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.
authors.affiliation: Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Jaworska
authors.forename: Michał
authors.initials: M
authors.lastname: Wójcik
authors.forename: Anna
authors.initials: A
authors.lastname: Kisiel
authors.forename: Józef
authors.initials: J
authors.lastname: Mieczkowski
authors.forename: Agata
authors.initials: A
authors.lastname: Michalska