scholarly journals Utilising copper screen-printed electrodes (CuSPE) for the electroanalytical sensing of sulfide

The Analyst ◽  
2016 ◽  
Vol 141 (4) ◽  
pp. 1233-1238 ◽  
Author(s):  
Bhawana Thakur ◽  
Elena Bernalte ◽  
Jamie P. Smith ◽  
Christopher W. Foster ◽  
Patricia E. Linton ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Screen Printed Electrodes ◽  
Sensing Platform ◽  
First Time ◽  
Screen Printed

A mediatorless sulfide electrochemical sensing platform utilising a novel nanocopper-oxide screen-printed electrodes (CuSPE) is reported for the first time.

Graphene Quantum Dots Modified Screen‐printed Electrodes as Electroanalytical Sensing Platform for Diethylstilbestrol

2019 ◽  
Vol 31 (5) ◽  
pp. 838-843 ◽  
Author(s):  
Ava Gevaerd ◽  
Craig E. Banks ◽  
Márcio F. Bergamini ◽  
Luiz Humberto Marcolino‐Junior
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Screen Printed Electrodes ◽  
Sensing Platform ◽  
Screen Printed

A sensitive enzyme-free lactic acid sensor based on NiO nanoparticles for practical applications

2019 ◽  
Vol 11 (28) ◽  
pp. 3578-3583 ◽  
Author(s):  
Sidra Amin ◽  
Aneela Tahira ◽  
Amber Solangi ◽  
Raffaello Mazzaro ◽  
Zafar Hussain Ibupoto ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Glassy Carbon ◽  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
Nio Nanoparticles ◽  
Modified Glassy Carbon Electrode ◽  
Practical Applications ◽  
Sensing Platform ◽  
First Time

A facile and efficient electrochemical sensing platform has been successfully exploited for the first time for the determination of lactic acid using a nickel oxide (NiO) nanoparticle-modified glassy carbon electrode (GCE).

An electrochemical sensing platform based on local repression of electrolyte diffusion for single-step, reagentless, sensitive detection of a sequence-specific DNA-binding protein

The Analyst ◽  
2014 ◽  
Vol 139 (9) ◽  
pp. 2193-2198 ◽  
Author(s):  
Yun Zhang ◽  
Fang Liu ◽  
Jinfang Nie ◽  
Fuyang Jiang ◽  
Caibin Zhou ◽  
...  
Keyword(s):  
Dna Binding ◽  
Electrode Surface ◽  
Electrochemical Biosensor ◽  
Binding Protein ◽  
Dna Binding Protein ◽  
Single Step ◽  
Dna Probe ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
First Time

This paper describes for the first time an electrochemical biosensor, which employs a DNA probe modified with a redox tag close to electrode surface, for picomolar detection of a sequence-specific DNA-binding protein.

Antimony Tin Oxide—Prussian Blue Screen-Printed Electrodes for Electrochemical Sensing of Potassium Ions

2021 ◽  
Vol 5 (1) ◽  
pp. 59
Author(s):  
Cecilia Lete ◽  
Mariana Marin ◽  
Francisco Javier del Campo ◽  
Ioana Diaconu ◽  
Stelian Lupu
Keyword(s):  
Prussian Blue ◽  
Caffeic Acid ◽  
Tin Oxide ◽  
Electrochemical Sensing ◽  
Potassium Ions ◽  
Cathodic Peak ◽  
Peak Current ◽  
Screen Printed Electrodes ◽  
Analytical Applications ◽  
Screen Printed

In this work, the characterization and the electro-analytical applications of antimony tin oxide (ATO)–Prussian blue (PB) screen printed electrodes (SPE) are presented. The ATO conducting particles have been used recently in the development of screen-printed electrodes due to their excellent spectroelectrochemical properties. PB is a transition metal hexacyanoferrate with high electrocatalytic properties towards various biologically active compounds like hydrogen peroxide, besides its outstanding electrochromic properties. A combination of ATO and PB ingredients into a screen-printing paste provided a versatile and cost-effective way in the development of novel electrode materials for electrochemical sensing. The ATO-PB electrode material displayed good electrochemical properties demonstrated by means of cyclic voltammetry and electrochemical impedance measurements. In addition, the PB provided a high selectivity towards potassium ions in solution due to its zeolitic structures and excellent redox behavior. The cyclic voltammetric responses recorded at the ATO-PB-SPE device in the presence of potassium ions revealed a linear dependence of the cathodic peak current and cathodic peak potential of the Prussian blue/Everitt’s salt redox system on the potassium concentrations ranging from 0.1 to 10 mM. This finding could be exploited in the development of an electrochemical sensor for electro-inactive chemical species. The potential application of the ATO-PB electrode in the electrochemical sensing of electro-active species like caffeic acid was also studied. An increase of the anodic peak current of the PB/ES redox wave in the presence of caffeic acid was observed. These results point out to the potential analytical applications of the ATO-PB electrode in the sensing of both electro-active and electro-inactive species.

scholarly journals Mass-producible 2D-MoSe2 bulk modified screen-printed electrodes provide significant electrocatalytic performances towards the hydrogen evolution reaction

2017 ◽  
Vol 1 (1) ◽  
pp. 74-83 ◽  
Author(s):  
Samuel J. Rowley-Neale ◽  
Christopher W. Foster ◽  
Graham C. Smith ◽  
Dale A. C. Brownson ◽  
Craig E. Banks
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Screen Printed Electrodes ◽  
First Time ◽  
Screen Printed

2D-MoSe2 modified screen-printed electrodes (2D-MoSe2-SPEs) are fabricated for the first time and shown to be electrocatalytic towards the Hydrogen Evolution Reaction.

scholarly journals Electrochemical Sensing and Removal of Cesium from Water Using Prussian Blue Nanoparticle-Modified Screen-Printed Electrodes

Chemosensors ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 253
Author(s):  
Prem. C. Pandey ◽  
Hari Prakash Yadav ◽  
Shubhangi Shukla ◽  
Roger J. Narayan
Keyword(s):  
Ion Exchange ◽  
Prussian Blue ◽  
Electrochemical Sensing ◽  
Contaminated Water ◽  
Maximum Adsorption Capacity ◽  
Screen Printed Electrodes ◽  
Cesium Radionuclides ◽  
Cesium Concentration ◽  
Cs Ions ◽  
Screen Printed

Selective screening followed by the sensing of cesium radionuclides from contaminated water is a challenging technical issue. In this study, the adsorption functionality of Prussian blue (PB) nanoparticles was utilized for the detection and efficient removal of cesium cations. An efficient PB nanoparticle-modified screen-printed electrode (SPE) in the three-electrode configuration was developed for the electrochemical sensing and removal of Cs+. PB nanoparticles inks were obtained using a facile two-step process that was previously described as suitable for dispensing over freshly prepared screen-printed electrodes. The PB nanoparticle-modified SPE induced a cesium adsorption-dependent chronoamperometric signal based on ion exchange as a function of cesium concentration. This ion exchange, which is reversible and rapid, is associated with electron transfer in the PB nanoparticle-modified SPE. Using this electrochemical adsorption system (EAS) based on chronoamperometry, the maximum adsorption capacity (Qmax) of Cs+ ions in the PB nanoparticle-modified SPE reached up to 325 ± 1 mg·g−1 in a 50 ± 0.5 μM Cs+ solution, with a distribution coefficient (Kd) of 580 ± 5 L·g−1 for Cs+ removal. The cesium concentration-dependent adsorption of PB nanoparticles was also demonstrated by fluorescence spectroscopy based on fluorescence quenching of PB nanoparticles as a function of cesium concentration using a standard fluorophore like fluorescein in a manner analogous to that previously reported for As(III).

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