DIELECTRIC
PROPERTIES OF GLUCOSE SOLUTIONS IN THE MILLIMETER –
Institute of Radioengineering and Electronics
Russian
e-mail: meriakri@ms.ire.rssi.ru
Abstract –. Using new nondestructive method dielectric
properties of glucose solutions, blood imitators, blood and skin in the
millimeter-wave range were investigated.
I. Introduction
The
objective of this paper is to investigate the dielectric properties of e for
glucose solutions in water, an imitator
of blood, for blood, and for skin, as well as to investigate the possibility of
using millimeter waves for sugar (glucose) control in human blood, including
non-invasive control.
II.
Main part
A
new method (without measurement phase of the reflection coefficient) for the
non-destructive determination of complex
permittivity for lossy
substances is elaborated and realized.
Dielectric
properties of glucose solutions with concentration W from 5 to 0.25% wt.
are measured in the frequency range 30–93 GHz and at 10 GHz.
Dielectric
properties of human blood (using one drop) are investigated in vivo at
frequencies of 42 and 66 GHz. The measurements have shown that this method can
be used for the real-time determination of the glucose content in blood after
oral glucose tolerance test (OGTT) without special strips used in optical
invasive glucometer..
Dielectric
properties of skin in the frequency range from 30 to 80 GHz are determined. It
is shown that it is possible, in principle, to create a non- invasive device
for the glucose content in blood determination, at least after OGTT.
III.
Conclusion
Investigations of dielectric
properties of glucose solutions, blood imitators, blood, and skin in the millimeter-wave
range are of interest not only for understanding interaction of millimeter
waves with these substances but also for nondestructive monitoring of glucose
solutions and noninvasive control of glucose concentration in blood.
.
.