Background: Magnetic hyperthermia is a technique that proposes the annihilation of cancer cells through the elevation of cell temperature above 316K by utilizing the heat dissipated by magnetic particles exposed to an alternating magnetic field.
Aim: The idea of the invention is that Ultradisperse
superparamagnetic nanoceramic particles are received in rotating cathode
equipment.
Methods: The microstructure of powder is studied by electronic
microscopy and X-ray analysis. Also, powder homogeneity, particle size
distribution and, respectively, stability and magnetic susceptibility are
studied by magnetometric method. The average sizes of particles are 30‐100 nm.
The powder is homogeneous and in the process of analysis, it was revealed its
good stability. The research object is superparamagnetic powder. The relative
value of its magnetic susceptibility is 1.00037. Sample magnetization
measurements are done at cooling in zero magnetic field (ZFC) and in nonzero
field (FC) modes, also magnetic hysteresis curves are measured at low and high
temperatures compared to the mean blocking temperature (TB) for
measured samples. From the state of maximum on the ZFC curve, it was deduced
that the temperature of blocking in the given superparamagnetic subsystem of
particles is TB ~ 60 K.
Results: The practical innovation is that for the first time in
Georgia, the local monotherapy and adjuvant effects of locally controlled
hyperthermia in the polychemotherapeutic treatment of tumors were studied with
the help of the created devices. For the first time in Georgia, medical devices
for locally controlled hyperthermia were developed. Accordingly, with the help
of these devices, an innovative technology for hyperthermia was created.
Conclusion: A completely new methodology and technology is being
created. Significant progress has been made in experiments on animals and
voluntary patients.
Author
(s) Details
Zviad Kovziridze
Department of Chemical and Biological Technologies, Georgian Technical
University, Tbilisi, Kostava St. 77, Tbilisi, 0175, Georgia.
Jurgen G. Heinrich
Institute of Nonmetallic Materials, Clausthal University of Technology,
Zehntnerstrasse 2a, Clausthal – Zellerfeld, 38678, Germany.
Reinhard Goerke
Institute of Nonmetallic Materials, Clausthal University of Technology,
Zehntnerstrasse 2a, Clausthal – Zellerfeld, 38678, Germany.
Gregor Mamniashvili
Department of Condensed Matter Physics, E. Andronikashvili Institute of
Physics, Tamarashvili St. 6, Tbilisi, 0162, Georgia.
Zurab Chachkhiani
Department of Chemical and Biological Technologies, Georgian Technical
University, Tbilisi, Kostava St. 77, Tbilisi, 0175, Georgia.
Nunu Mitskevich
Department of Chemical and Biological Technologies, Georgian Technical
University, Tbilisi, Kostava St. 77, Tbilisi, 0175, Georgia.
Reinhard Goerke
Institute of Nonmetallic Materials, Clausthal University of Technology,
Zehntnerstrasse 2a, Clausthal – Zellerfeld, 38678, Germany.
Please see the book here:- https://doi.org/10.9734/bpi/acmms/v2/2803