Influence of Surface Charge/Potential of a Gold Electrode on the Adsorptive/Desorptive Behaviour of Fibrinogen

2015 ◽  
Vol 174 ◽  
pp. 1009-1016 ◽  
Author(s):  
Mahdi Dargahi ◽  
Evgeny Konkov ◽  
Sasha Omanovic
Keyword(s):  
Surface Charge ◽  
Gold Electrode ◽  
Charge Potential

Effect of electrospinning conditions on β-phase and surface charge potential of PVDF fibers

Polymer ◽  
2021 ◽  
pp. 123902
Author(s):  
Harshal Gade ◽  
Shantanu Nikam ◽  
George G. Chase ◽  
Darrell H. Reneker
Keyword(s):  
Surface Charge ◽  
Β Phase ◽  
Charge Potential

Tuning the surface charge density of exfoliated thin molybdenum disulfide sheets via non-covalent functionalization for promoting hydrogen evolution reaction

2020 ◽  
Vol 8 (2) ◽  
pp. 510-517 ◽  
Author(s):  
Wei-Ming Huang ◽  
Wei-Sheng Liao ◽  
Yan-Ming Lai ◽  
I-Wen Peter Chen
Keyword(s):  
Charge Density ◽  
Surface Charge ◽  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Surface Charge Density ◽  
Covalent Functionalization ◽  
Tafel Slope ◽  
Charge Potential

The surface charge density of exfoliated monolayer molybdenum disulfide sheets can be successfully tuned with the assistance of exfoliants. As the surface charge potential approaches zero, the Tafel slope reaches 45 mV dec−1.

scholarly journals Weighing the surface charge of an ionic liquid

Nanoscale ◽  
2015 ◽  
Vol 7 (38) ◽  
pp. 16039-16045 ◽  
Author(s):  
Nicklas Hjalmarsson ◽  
Daniel Wallinder ◽  
Sergei Glavatskih ◽  
Rob Atkin ◽  
Teodor Aastrup ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Surface Charge ◽  
Double Layer ◽  
Quartz Crystal Microbalance ◽  
Electrode Surface ◽  
Electrical Double Layer ◽  
Gold Electrode ◽  
Quartz Crystal ◽  
Electrochemical Quartz Crystal Microbalance

Electrochemical quartz crystal microbalance has been used to measure changes in the composition of the capacitive electrical double layer for 1-ethyl-3-methylimidazolium tris(pentafluoroethyl)-trifluorophosphate, an ionic liquid, in contact with a gold electrode surface as a function of potential.

Imaging molecules adsorbed onto electrodes under potential control by scanning probe microscopy

1991 ◽  
Vol 49 ◽  
pp. 376-377 ◽  
Author(s):  
N.J. Tao ◽  
J.A. DeRose ◽  
P.I. Oden ◽  
S.M. Lindsay
Keyword(s):  
Surface Charge ◽  
Environmental Effects ◽  
Scanning Probe Microscopy ◽  
Statistical Significance ◽  
Electrochemical Methods ◽  
Surface Structures ◽  
Scanning Probe ◽  
Potential Control ◽  
Afm Imaging ◽  
Special Circumstances

Clemmer and Beebe have pointed out that surface structures on graphite substrates can be misinterpreted as biopolymer images in STM experiments. We have been using electrochemical methods to react DNA fragments onto gold electrodes for STM and AFM imaging. The adsorbates produced in this way are only homogeneous in special circumstances. Searching an inhomogeneous substrate for ‘desired’ images limits the value of the data. Here, we report on a reversible method for imaging adsorbates. The molecules can be lifted onto and off the substrate during imaging. This leaves no doubt about the validity or statistical significance of the images. Furthermore, environmental effects (such as changes in electrolyte or surface charge) can be investigated easily.

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