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Proceedings Paper

Modeling of metamaterials: a globular protein as a metamaterial prototype for electromagnetic-acoustic conversion at low temperatures
Author(s): Anatoly V. Stepanov
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Paper Abstract

The investigation is devoted to give proof to the simple idea, that a globular protein is a molecular machine. This machine effectively converts electromagnetic energy of thermal equilibrium radiation (TER) to energy of acoustic oscillations associated with low-temperature equilibrium fluctuations of protein structure. The laws of thermal equilibrium radiation , the activation process model and photon-to-phonon transformation mechanism in solid state are used to prove this idea. The absorbing ability of a globule is calculated for myoglobin and beta-hemoglobin macromolecules. It is shown, that up to 36 - 37 % of electromagnetic energy of thermal equilibrium radiation is conversed to energy of the phonon bath. Then the bath's energy is used to enable low-temperature equilibrium fluctuations of a globule. Thus, it is proved, that protein macromolecule is an acoustic resonator capable to store energy for structural transformations. So, a globular protein can be used as a metamaterial prototype for electromagnetic-acoustic energy conversion at low temperatures.

Paper Details

Date Published: 18 May 2011
PDF: 13 pages
Proc. SPIE 8070, Metamaterials VI, 807013 (18 May 2011); doi: 10.1117/12.886592
Show Author Affiliations
Anatoly V. Stepanov, Belarusian State Univ. (Belarus)

Published in SPIE Proceedings Vol. 8070:
Metamaterials VI
Vladimir Kuzmiak; Peter Markos; Tomasz Szoplik, Editor(s)

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