The aim of this research was to develop a simple, selective and sensitive aptasensor for detection of Pb2+ based on hairpin structure of complementary strand (CS) of aptamer (Apt). Screen printed carbon electrode (SPCE) was electrodeposited by gold nanoparticles to be used as the substrate for the immobilization of Apt-CS. Moreover, gold nanoparticles (AuNPs) and thionine were added to increase...

Potential cycling in the range from -0.2 to +1.2 V is used for the electrodeposition of hydrous iridium oxide films onto a screen-printed electrode from a saturated solution of alkaline iridium(III) solution. The iridium oxide redox couple shows a stable and obvious reversible redox, with the formal potential being pH dependent in the range 1-14. The properties, stability and electrochemical pr...

This work presents a flexible miniaturized ion-selective sensor consisting of a solidcontact reference electrode (RE) and ion-selective electrodes (ISE) fabricated on the same foil. The flexible ion sensor was based on AgCl electrodes screen printed on polyethylene terephthalate foil. The RE was formed by casting a mixture of plasticized polyvinylchloride (PVC) and KCl on the AgCl electrode. Th...

Sequential injection system (SI system) was used for the pretreatment of a carbon electrode in an anodic stripping voltammetry (ASV) for the determination of arsenic (III). In this research, a screen-printed carbon electrode (SPCE) was used; SPCE was prepared in our laboratory by us. In ASV, SPCE was chosen as a working electrode because SPCE is less expensive, easy to use for a flow cell and s...

Mykhailo T. Zhybak, Mikhail Yu. Vagin, Valerio Beni, Xianjie Liu, Eithne Dempsey, Anthony P. F. Turner and Yaroslav I. Korpan, Direct detection of ammonium ion by means of oxygen electrocatalysis at a copper-polyaniline composite on a screen-printed electrode., 2016, Microchimica Acta, (183), 6, 1981-1987. http://dx.doi.org/10.1007/s00604-016-1834-3 Copyright: Springer Verlag (Germany) http://w...

We report here the development of a novel disposable-type glucose enzyme sensor based on a screen-printed carbon electrode (SPCE) employing a catalytic subunit of FAD-dependent glucose dehydrogenase (FADGDH) and a Rucomplex (hexaammineruthenium (III) chloride) as the electron mediator. The whole blood glucose measurement was achieved in 2 seconds using a 500 nl sample of the range of 100-800 mg...