Energy transfer to the phonons of a macromolecule through light pumping

Abstract In the present paper we address the problem of the energy downconversion of the light absorbed by a protein into its internal vibrational modes. We consider the case in which the light receptors are fluorophores either naturally co-expressed with the protein or artificially covalently bound...

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Autores principales:	Elham Faraji, Roberto Franzosi, Stefano Mancini, Marco Pettini
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d80f529d19884fdd8d6068a832b468b8
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spelling	oai:doaj.org-article:d80f529d19884fdd8d6068a832b468b82021-12-02T11:45:01ZEnergy transfer to the phonons of a macromolecule through light pumping10.1038/s41598-021-85856-52045-2322https://doaj.org/article/d80f529d19884fdd8d6068a832b468b82021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85856-5https://doaj.org/toc/2045-2322Abstract In the present paper we address the problem of the energy downconversion of the light absorbed by a protein into its internal vibrational modes. We consider the case in which the light receptors are fluorophores either naturally co-expressed with the protein or artificially covalently bound to some of its amino acids. In a recent work [Phys. Rev. X 8, 031061 (2018)], it has been experimentally found that by shining a laser light on the fluorophores attached to a protein the energy fed to it can be channeled into the normal mode of lowest frequency of vibration thus making the subunits of the protein coherently oscillate. Even if the phonon condensation phenomenon has been theoretically explained, the first step - the energy transfer from electronic excitation into phonon excitation - has been left open. The present work is aimed at filling this gap.Elham FarajiRoberto FranzosiStefano ManciniMarco PettiniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elham Faraji Roberto Franzosi Stefano Mancini Marco Pettini Energy transfer to the phonons of a macromolecule through light pumping
description	Abstract In the present paper we address the problem of the energy downconversion of the light absorbed by a protein into its internal vibrational modes. We consider the case in which the light receptors are fluorophores either naturally co-expressed with the protein or artificially covalently bound to some of its amino acids. In a recent work [Phys. Rev. X 8, 031061 (2018)], it has been experimentally found that by shining a laser light on the fluorophores attached to a protein the energy fed to it can be channeled into the normal mode of lowest frequency of vibration thus making the subunits of the protein coherently oscillate. Even if the phonon condensation phenomenon has been theoretically explained, the first step - the energy transfer from electronic excitation into phonon excitation - has been left open. The present work is aimed at filling this gap.
format	article
author	Elham Faraji Roberto Franzosi Stefano Mancini Marco Pettini
author_facet	Elham Faraji Roberto Franzosi Stefano Mancini Marco Pettini
author_sort	Elham Faraji
title	Energy transfer to the phonons of a macromolecule through light pumping
title_short	Energy transfer to the phonons of a macromolecule through light pumping
title_full	Energy transfer to the phonons of a macromolecule through light pumping
title_fullStr	Energy transfer to the phonons of a macromolecule through light pumping
title_full_unstemmed	Energy transfer to the phonons of a macromolecule through light pumping
title_sort	energy transfer to the phonons of a macromolecule through light pumping
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d80f529d19884fdd8d6068a832b468b8
work_keys_str_mv	AT elhamfaraji energytransfertothephononsofamacromoleculethroughlightpumping AT robertofranzosi energytransfertothephononsofamacromoleculethroughlightpumping AT stefanomancini energytransfertothephononsofamacromoleculethroughlightpumping AT marcopettini energytransfertothephononsofamacromoleculethroughlightpumping
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Energy transfer to the phonons of a macromolecule through light pumping

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