An analytical model to compute the rate of entropy in living systems is developed basing oon the equations of heat and mass diffusion. The model is applied to the most interesting case of metabolic network, the glucose catabolism in normal and cancer cells. This is done treating the cell as an open thermodynamic systems. It is shown that the rate of internal entropy is mainly due to irreversible chemical reactions, and that the rate of external entropy is mostly correlated to the heat flow towards the intercellular environment. Analytical and numerical results show that in a cell the minimum dissipation principle is fulfilled in agreement with the local formulation of the second principle of thermodynamics.

Model for the calculation of the rate of entropy for irreversible processes in living systems - Presentazione orale by R. Zivieri

R. Zivieri
Primo
Writing – Original Draft Preparation
2017

Abstract

An analytical model to compute the rate of entropy in living systems is developed basing oon the equations of heat and mass diffusion. The model is applied to the most interesting case of metabolic network, the glucose catabolism in normal and cancer cells. This is done treating the cell as an open thermodynamic systems. It is shown that the rate of internal entropy is mainly due to irreversible chemical reactions, and that the rate of external entropy is mostly correlated to the heat flow towards the intercellular environment. Analytical and numerical results show that in a cell the minimum dissipation principle is fulfilled in agreement with the local formulation of the second principle of thermodynamics.
Entropy, non-equilibrium thermodynamics, rate of entropy production, irreversible reactions, living systems
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11392/2379614
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