Detection and Study of Single Water/Oil Nanoemulsion Droplet by Electrochemical Collisions on an Ultramicroelectrode

Herein, for the first time, research on water-in-oil (water/oil) emulsion droplets by electrochemical analysis has been reported. When the water/1,2-dichloroethane emulsion droplets collided with an ultramicroelectrode (UME), the blocking property of the droplets resulted in a “staircase” current de...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2017-08, Vol.245, p.128-132
Main Authors: Hoang, Nhung T.T., Ho, Thy L.T., Park, Jun Hui, Kim, Byung-Kwon
Format: Article
Language:English
Subjects:
Dichloroethane
Droplet sensing
Droplets
Electrochemical analysis
Electrodes
Emulsion blocking
Nanoemulsions
Single emulsion detection
Single particle nano-impact
Water
Water in oil emulsion
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Herein, for the first time, research on water-in-oil (water/oil) emulsion droplets by electrochemical analysis has been reported. When the water/1,2-dichloroethane emulsion droplets collided with an ultramicroelectrode (UME), the blocking property of the droplets resulted in a “staircase” current decrease. Each “staircase” current decrease is associated with the collision of an emulsion droplet with the UME surface. The experimental collision frequency was proportional to the concentration of the emulsion droplet. In addition, the size of each water droplet was estimated from the magnitude of the “staircase” current decrease and the simulation data. Results obtained from the collision signals provide information about the size of each single droplet (nano- to micro-) and the pM level concentrations of the water droplets in the organic continuous phase.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2017.05.135