Energy relaxation in molecular systems containing salt ions
https://doi.org/10.17586/2220-8054-2021-12-5-598-602
Abstract
In this paper, we consider relaxation processes in molecular systems containing single biomolecule and salt ions. The energy fluctuations in such systems were evaluated using computer simulations. The comparative analysis of the free energy dynamics of alanine, tryptophan, and albumin biomolecules in constructed molecular systems (aqueous solutions with different degrees of ionization) resulted in high influence of ionizing impurities on the full energy of the system and on the energy relaxation time. The results obtained can be used for development of hybrid micro and nanoelectronic devices with built-in biomolecular objects, for example, biochemical sensors, devices with microflow of liquids, technology for the preparation of molecular films, etc.
Keywords
Supporting agencies: This research was funded by RSF, grant number No 21-72-20029. The results were obtained using computational resources of Peter the Great Saint Petersburg Polytechnic University Supercomputing Center (www.spbstu.ru). The Authors express their deep gratitude to Prof. O. Yu. Tsybin for many fruitful discussions and invaluable advices which have helped us to plan the experiments and explain experimental data.
About the Authors
M. A. Baranov
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
29, Saint Petersburg, 195251
E. N. Velichko
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
29, Saint Petersburg, 195251
E. K. Nepomnyashchaya
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
29, Saint Petersburg, 195251
I. V. Pleshakov
Ioffe Institute
Russian Federation
Russian Federation
26 Politechnicheskaya str., Saint Petersburg, 194021
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Review
For citations:
Baranov M.A., Velichko E.N., Nepomnyashchaya E.K., Pleshakov I.V. Energy relaxation in molecular systems containing salt ions. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(5):598-602. https://doi.org/10.17586/2220-8054-2021-12-5-598-602
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