scholarly journals 2021 Colin Garfield Fink Postdoctoral Summer Fellowship – Summary Report Luciferase – Functionalized 3D Highly Porous Gold-based Electrochemical Biosensors

2021 ◽  
Vol 30 (4) ◽  
pp. 36-37
Author(s):  
Ali Othman
Keyword(s):  
Active Surface ◽  
Electrochemical Biosensors ◽  
Active Surface Area ◽  
Porous Gold ◽  
Transport Effect ◽  
Optical Output ◽  
Electrochemically Active ◽  
Highly Porous ◽  
Electrochemically Active Surface ◽  
Alternative Configuration

Recent advances in electrochemical biosensors have focused on new materials and strategies to improve specificity, sensitivity, stability, and response time. Herein, we aim to develop an electrochemical biosensor device by modification of a screen-printed electrode (SPE) with highly porous Au nanostructures and a bioluminescence (BL)-producing enzyme (luciferase). This approach leverages the enhanced electrochemically active surface area and the mass transport effect and offers an alternative configuration for optical output from the enzyme. The BL presents an instantaneous measurement of enzyme activity and can be exploited to show that the enzyme is being electrochemically controlled (an ON-OFF switchable sensor).

Ultrathin nickel boride nanosheets anchored on functionalized carbon nanotubes as bifunctional electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (2) ◽  
pp. 764-774 ◽  
Author(s):  
Xuncai Chen ◽  
Zixun Yu ◽  
Li Wei ◽  
Zheng Zhou ◽  
Shengli Zhai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Active Surface ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Transfer Resistance ◽  
Functionalized Carbon Nanotubes ◽  
Electrochemically Active ◽  
Metal Borides ◽  
Electrochemically Active Surface

Carbon nanotubes increase electrochemically active surface area and reduce charge transfer resistance of transition metal borides.

Microstructure and electrochemically active surface area of PtM/C electrocatalysts

2011 ◽  
Vol 47 (8) ◽  
pp. 933-939 ◽  
Author(s):  
V. E. Guterman ◽  
S. V. Belenov ◽  
T. A. Lastovina ◽  
E. P. Fokina ◽  
N. V. Prutsakova ◽  
...  
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Electrochemically Active Surface

scholarly journals The effect of the composition of the dispersing medium of oxide sols on the electrocatalytic activity of sol-gel obtained RuO2-TiO2/Ti anodes

2001 ◽  
Vol 66 (11-12) ◽  
pp. 847-857 ◽  
Author(s):  
Dejan Mitrovic ◽  
Vladimir Panic ◽  
Aleksandar Dekanski ◽  
Slobodan Milonjic ◽  
Radoslav Atanasoski ◽  
...  
Keyword(s):  
Surface Area ◽  
Electrocatalytic Activity ◽  
Sol Gel ◽  
Active Surface ◽  
Proton Exchange ◽  
Alcohol Molecule ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Dispersing Medium ◽  
Electrochemically Active Surface

The influence of the addition of methanol, ethanol, 1-propanol and 2-propanol to the dispersing medium of amixture of RuO2 and TiO2 sols on the electrochemically active surface area for proton exchange, as well as on the electrocatalytic activity for the chlorine evolution reaction (CER) of RuO2-TiO2/Ti electrode obtained by sol-gel procedure was investigated. The electrochemically active surface area was examined by cyclic voltammetry, while the analysis of the activity for the CER was performed by polarization measurements. The stability of the obtained anode coatings was also checked by an accelerated stability test. The anode properties depend on the number of C atoms in the alcohol molecule, as well as on the elapsed time between the preparation of the sols/alcohol mixture and its application onto the titanium support. The addition of alcohol increased the activity of the anodes for the CER, compared to those prepared without the addition, but their stability was smaller.

scholarly journals Evaluation of the Electrochemically Active Surface Area of Microelectrodes by Capacitive and Faradaic Currents

2019 ◽  
Vol 6 (17) ◽  
pp. 4411-4417 ◽  
Author(s):  
Alina N. Sekretaryova ◽  
Mikhail Yu. Vagin ◽  
Anton V. Volkov ◽  
Igor V. Zozoulenko ◽  
Mats Eriksson
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
Active Surface Area ◽  
Electrochemically Active ◽  
Electrochemically Active Surface
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