TY - JOUR
TI - The effect of bioresorbable additives and micro-bioobjects on gel formation, stabilization and thermophysical properties
AU - Pokusaev Boris G
AU - Vyazmin Andrey
AU - Zakharov Nikolay
AU - Karlov Sergey
AU - Nekrasov Dmitry A
AU - Reznik Vyacheslav
AU - Khramtsov Dmitry
JN - Thermal Science
PY - 2019
VL - 23
IS - 2
SP - 1297
EP - 1310
PT - Article
AB - The same properties of agarose gels containing neutral bioresorbable  additives and living microorganisms which are important for use in additive  technologies of bioreactors creation were considered. Data on the kinetics  of gel formation from the solution during cooling were obtained by  spectroscopic measurement by measuring the shift of the maximum spectrum of  light passing through the gel, depending on the temperature. The dynamics of  aging was investigated for gels of different concentrations of agarose,  bioresorbable additives and living cells. The time dependences of the  decrease in the optical transparency of such gels during the aging process,  characterizing the changes in their structure, were obtained. Special  attention was paid to the effect of liquid evaporation from gels in the  process of gel formation and during long-term storage on relaxation  processes leading to their spontaneous increase in density. Experiments were  performed to determine the dynamics of the temperature fields simultaneously  with heat flux measurements during the formation of studied gels with  different concentrations. On the basis of the obtained experimental data and  previously developed method, the thermophysical coefficients of agarose gels  containing an admixture of starch and living yeast cells were calculated.