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@ARTICLE{Gubin:865331,
author = {Gubin, Alexey I. and Protsenko, Irina A. and Barannik,
Alexander A. and Vitusevich, Svetlana and Lavrinovich,
Alexandr A. and Cherpak, Nickolay T.},
title = {{Q}uartz {W}hispering-{G}allery-{M}ode {R}esonator {W}ith
{M}icrofluidic {C}hip as {S}ensor for {P}ermittivity
{M}easurement of {L}iquids},
journal = {IEEE sensors journal},
volume = {19},
number = {18},
issn = {1530-437X},
address = {New York, NY},
publisher = {IEEE},
reportid = {FZJ-2019-04831},
pages = {7976 - 7982},
year = {2019},
abstract = {Studies of biological solutions require high measurement
accuracy, the ability to detect low changes in substance
concentration, and small amounts of the liquid under test. A
microwave complex permittivity measurement technique based
on a high-quality-factor whispering-gallery-mode resonator
with a microfluidic chip allows small amounts of dielectric
liquids to be investigated with high accuracy. An existing
technique based on a sapphire resonator does not provide for
a low-concentration detection limit for substances with low
molecular weight. Here, we present an advanced technique
based on a quartz dielectric resonator. The detection limit
obtained for glucose in water solution was found to be about
one order of magnitude lower for the quartz resonator cell
than for the sapphire-resonator-based measurement cell. The
limit is about or lower than the concentration of glucose in
human blood. This fact means that the technique can be used
as the sensor for investigations of biological solutions in
the microwave range. A study of glucose, lactalbumin, and
bovine serum albumin was successfully performed in the Ka
-band using the developed sensor.},
cin = {ICS-8},
ddc = {004},
cid = {I:(DE-Juel1)ICS-8-20110106},
pnm = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
pid = {G:(DE-HGF)POF3-523},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000481964500023},
doi = {10.1109/JSEN.2019.2920345},
url = {https://juser.fz-juelich.de/record/865331},
}