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@ARTICLE{Miyamoto:150596,
author = {Miyamoto, Ko-ichiro and Ichimura, Hiroki and Wagner,
Torsten and Schöning, Michael J. and Yoshinobu, Tatsuo},
title = {{C}hemical imaging of the concentration profile of ion
diffusion in a microfluidic channel.},
journal = {Sensors and actuators / B},
volume = {189},
issn = {0925-4005},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2014-00645},
pages = {240 - 245},
year = {2013},
abstract = {The chemical imaging sensor is a device to visualize the
spatial distribution of chemical species based on the
principle of LAPS (light-addressable potentiometric sensor),
which is a field-effect chemical sensor based on
semiconductor. In this study, the chemical imaging sensor
has been applied to investigate the ion profile of laminar
flows in a microfluidic channel. The chemical images (pH
maps) were collected in a Y-shaped microfluidic channel
while injecting HCl and NaCl solutions into two branches.
From the chemical images, it was clearly observed that the
injected solutions formed laminar flows in the channel. In
addition, ion diffusion across the laminar flows was
observed, and the diffusion coefficient could be derived by
fitting the pH profiles to the Fick's equation.},
cin = {PGI-8 / JARA-FIT / ICS-8},
ddc = {530},
cid = {I:(DE-Juel1)PGI-8-20110106 / $I:(DE-82)080009_20140620$ /
I:(DE-Juel1)ICS-8-20110106},
pnm = {423 - Sensorics and bioinspired systems (POF2-423) / 453 -
Physics of the Cell (POF2-453)},
pid = {G:(DE-HGF)POF2-423 / G:(DE-HGF)POF2-453},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000326346300035},
doi = {10.1016/j.snb.2013.04.057},
url = {https://juser.fz-juelich.de/record/150596},
}