Combined scanning electrochemical microscopy–Langmuir trough technique for investigating phase transfer kinetics across liquid/liquid interfaces modified by a molecular monolayer

2003 ◽  
Vol 5 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Jie Zhang ◽  
Jörg Strutwolf ◽  
Susan Cannan ◽  
Patrick R. Unwin
Keyword(s):  
Phase Transfer ◽  
Scanning Electrochemical Microscopy ◽  
Liquid Interfaces ◽  
Langmuir Trough ◽  
Electrochemical Microscopy

Probing liquid∣liquid interfaces using neutron reflection measurements and scanning electrochemical microscopy

2000 ◽  
Vol 483 (1-2) ◽  
pp. 163-173 ◽  
Author(s):  
Jörg Strutwolf ◽  
Anna L Barker ◽  
Marylou Gonsalves ◽  
Daren J Caruana ◽  
Patrick R Unwin ◽  
...  
Keyword(s):  
Scanning Electrochemical Microscopy ◽  
Liquid Interfaces ◽  
Neutron Reflection ◽  
Electrochemical Microscopy

New Electrochemical Techniques for Probing Phase Transfer Dynamics at Dental Interfaces in Vitro

1997 ◽  
Vol 11 (4) ◽  
pp. 548-559 ◽  
Author(s):  
P.R. Unwin ◽  
J.V. Macpherson ◽  
M.A. Beeston ◽  
N.J. Evans ◽  
D. Littlewood ◽  
...  
Keyword(s):  
Phase Transfer ◽  
Electrochemical Techniques ◽  
Transfer Reactions ◽  
Liquid Interfaces ◽  
Atomic Force ◽  
Wide Range ◽  
Tissue Surfaces ◽  
Solid Liquid ◽  
Electrochemical Microscopy

Phase transfer reactions such as dissolution, precipitation, sorption, and desorption are important in a wide range of processes on dental hard tissue surfaces. An overview is provided of several new complementary electrochemical techniques which are capable of probing the dynamics of such processes at solid/liquid interfaces from millimeter- to nanometer-length scales, with a variable time resolution down to the sub-millisecond level. Techniques considered include channel flow methods with electrochemical detection, which allow reactions at solid/liquid interfaces to be studied under well-defined and calculable mass transport regimes. Scanning electrochemical microscopy allows the chemical activity of interfaces to be mapped at higher spatial and temporal resolutions. This technique, which utilizes a scanning ultramicroelectrode, has been used extensively for the study of dissolution processes of ionic crystals, as well as in imaging the action of fluid-flow-blocking agents on dentin surfaces, which act via precipitation. So that interfaces at the nanometer level can be probed, an integrated electrochemical-atomic force microscope has been developed which enables the local solution conditions to be controlled electrochemically while topographical changes are mapped simultaneously.

Scanning Electrochemical Microscopy for Investigating Gas Bubble/Liquid Interfaces

2003 ◽  
Vol 6 (10) ◽  
pp. E23 ◽  
Author(s):  
C. Gabrielli ◽  
F. Huet ◽  
M. Keddam ◽  
P. Rousseau ◽  
V. Vivier
Keyword(s):  
Scanning Electrochemical Microscopy ◽  
Gas Bubble ◽  
Liquid Interfaces ◽  
Bubble Liquid ◽  
Electrochemical Microscopy
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