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@ARTICLE{Naumova:859138,
author = {Naumova, Natalia and Hlukhova, Hanna and Barannik,
Alexander and Gubin, Alexey and Protsenko, Irina and
Cherpak, Nickolay and Vitusevich, Svetlana},
title = {{M}icrowave characterization of low-molecular-weight
antioxidant specific biomarkers},
journal = {Biochimica et biophysica acta / General subjects General
subjects [...]},
volume = {1863},
number = {1},
issn = {0304-4165},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2019-00074},
pages = {226 - 231},
year = {2019},
abstract = {Antioxidants play a crucial role in the life sciences, as
the regulators of biochemical reactions. We studied the
dielectric properties of the low-molecular weight
antioxidant specific biomarkers sodium ascorbate and
glutathione in solutions of different concentrations. The
biomarkers are multifunctional metabolites relevant to the
reactive oxygen species (ROS) scavenging system of cells.
The newly developed high-Q microwave whispering-gallery-mode
(WGM) dielectric resonator based technique was applied. The
technique allows investigation of liquids of nanoliter
volumes filled in microfluidic channel within several
milliseconds. The revealed peculiarities in the dependence
of permittivity on concentrations of the sodium ascorbate
and glutathione solutions are explained by differences in
relaxation times and loses introduced by molecules of
different shapes. We suggest that this novel approach offers
the potential for the detection and characterization of
ROS-relevant biomarkers with millisecond-time resolution.},
cin = {ICS-8},
ddc = {610},
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},
pubmed = {pmid:30342155},
UT = {WOS:000452343100021},
doi = {10.1016/j.bbagen.2018.10.013},
url = {https://juser.fz-juelich.de/record/859138},
}