THERMAL SCIENCE

International Scientific Journal

Boris G. Pokusaev

,

Andrey Vyazmin

,

Nikolay Zakharov

,

Sergey Karlov

,

Dmitry A. Nekrasov

,

Vyacheslav Reznik

,

Dmitry Khramtsov

NON-STATIONARY HEAT TRANSFER IN GELS APPLIED TO BIOTEHNOLOGY

ABSTRACT
Unsteady heat transfer in agarose gels of various concentrations was studied in order to make a breakthrough in the technology of 3-D additive bioprinting. Data on the kinetics of the phase transformation was obtained using spectroscopy as a function of temperature during the formation of agarose hydrogel. The dynamics of aging was investigated for gels of different densities. The time dependence of the structural changes was obtained. Particular attention was paid to the changes in the structure of the gel due to the processes of evaporation of the liquid during the gel formation and during long-term storage. Experiments were performed to determine the dynamics of the temperature fields simultaneously with heat flux measurements during the formation of agarose gels from different initial concentrations. A technique based on experimental data for the computations of the thermophysical coefficients of agarose gels was developed.
KEYWORDS
additive bioprinting, agarose gel, spectroscopy, phase transformations, kinetics of formation, mechanisms of gel aging, evaporation, thermophysical coefficients of gel
PAPER SUBMITTED: 2017-04-15
PAPER REVISED: 2017-04-22
PAPER ACCEPTED: 2017-04-23
PUBLISHED ONLINE: 2017-05-06
DOI REFERENCE: https://doi.org/10.2298/TSCI170415125P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Issue 5, PAGES [2237 - 2246]
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Non-stationary heat transfer in gels applied to biotehnology

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence