Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model
Аутори
Chevizovich, DaliborMatić, Vasilije
Pržulj, Željko
Остала ауторства
Morić, IvanaĐorđević, Valentina
Конференцијски прилог (Објављена верзија)
,
© 2023 Institute of Molecular Genetics and Genetic Engineering, University of Belgrade
Метаподаци
Приказ свих података о документуАпстракт
Molecular chains (such as protein chains with alpha-helical secondary structure, DNA and
RNA molecules) can play the role of “bridges” for the highly efficient transfer of various
types of submolecular excitations (vibron excitations or electrons) over very long distances
(comparable to the length of the molecular chain itself). In the case when this process
takes place in living cells, the biomolecule is placed in an environment where it is usually
in thermodynamic equilibrium with the “heat bath”. As a result, the structural elements of
the molecular chain perform mechanical oscillations. In the general case, such mechanical
oscillations disrupt the ability of the molecular bridge to transfer the excitation over a
longer distance.
On the other side, by interacting with the thermal oscillations of the structure, excitations
injected into the molecule may be trapped and can form a stable self-trapped (polaronlike)
state. Such quasiparticles can move through the structure wit...h minimal energy
loss. In this way, the high efficiency of energy and charge transport in living cells can be
explained. However, the properties of the possibly formed polaron quasiparticle must also
be affected by the presence of the donor molecule.
Here, we have discussed the mechanism of excitation transfer from a molecular structure
(donor molecule) to the molecular chain. The presence of the donor structure and the
temperature influence on the energy of the self-trapped excitation were considered in the
dependence of the basic energy parameters of the molecular bridge. The obtained results
indicate the possibility of the formation of two types of self-trapped states: a quasi-free
excitation, which can easily move through the molecular bridge, and a localized, practically
immobile excitation, which is similar to a non-adiabatic polaron quasiparticle.
Кључне речи:
energy transfer / information transfer / biomolecular structures / self-trapping / polaron quasiparticleИзвор:
4th Belgrade Bioinformatics Conference, 2023, 4, 75-75Издавач:
- Belgrade : Institute of molecular genetics and genetic engineering
Финансирање / пројекти:
- Supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia and by the Project within the Cooperation Agreement between the JINR, Dubna, Russian Federation and Ministry of Education and Science of the Republic of Serbia.
Напомена:
- Book of abstract: 4th Belgrade Bioinformatics Conference, June 19-23, 2023
Колекције
Институција/група
Institut za molekularnu genetiku i genetičko inženjerstvoTY - CONF AU - Chevizovich, Dalibor AU - Matić, Vasilije AU - Pržulj, Željko PY - 2023 UR - https://imagine.imgge.bg.ac.rs/handle/123456789/2015 AB - Molecular chains (such as protein chains with alpha-helical secondary structure, DNA and RNA molecules) can play the role of “bridges” for the highly efficient transfer of various types of submolecular excitations (vibron excitations or electrons) over very long distances (comparable to the length of the molecular chain itself). In the case when this process takes place in living cells, the biomolecule is placed in an environment where it is usually in thermodynamic equilibrium with the “heat bath”. As a result, the structural elements of the molecular chain perform mechanical oscillations. In the general case, such mechanical oscillations disrupt the ability of the molecular bridge to transfer the excitation over a longer distance. On the other side, by interacting with the thermal oscillations of the structure, excitations injected into the molecule may be trapped and can form a stable self-trapped (polaronlike) state. Such quasiparticles can move through the structure with minimal energy loss. In this way, the high efficiency of energy and charge transport in living cells can be explained. However, the properties of the possibly formed polaron quasiparticle must also be affected by the presence of the donor molecule. Here, we have discussed the mechanism of excitation transfer from a molecular structure (donor molecule) to the molecular chain. The presence of the donor structure and the temperature influence on the energy of the self-trapped excitation were considered in the dependence of the basic energy parameters of the molecular bridge. The obtained results indicate the possibility of the formation of two types of self-trapped states: a quasi-free excitation, which can easily move through the molecular bridge, and a localized, practically immobile excitation, which is similar to a non-adiabatic polaron quasiparticle. PB - Belgrade : Institute of molecular genetics and genetic engineering C3 - 4th Belgrade Bioinformatics Conference T1 - Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model EP - 75 SP - 75 VL - 4 UR - https://hdl.handle.net/21.15107/rcub_imagine_2015 ER -
@conference{ author = "Chevizovich, Dalibor and Matić, Vasilije and Pržulj, Željko", year = "2023", abstract = "Molecular chains (such as protein chains with alpha-helical secondary structure, DNA and RNA molecules) can play the role of “bridges” for the highly efficient transfer of various types of submolecular excitations (vibron excitations or electrons) over very long distances (comparable to the length of the molecular chain itself). In the case when this process takes place in living cells, the biomolecule is placed in an environment where it is usually in thermodynamic equilibrium with the “heat bath”. As a result, the structural elements of the molecular chain perform mechanical oscillations. In the general case, such mechanical oscillations disrupt the ability of the molecular bridge to transfer the excitation over a longer distance. On the other side, by interacting with the thermal oscillations of the structure, excitations injected into the molecule may be trapped and can form a stable self-trapped (polaronlike) state. Such quasiparticles can move through the structure with minimal energy loss. In this way, the high efficiency of energy and charge transport in living cells can be explained. However, the properties of the possibly formed polaron quasiparticle must also be affected by the presence of the donor molecule. Here, we have discussed the mechanism of excitation transfer from a molecular structure (donor molecule) to the molecular chain. The presence of the donor structure and the temperature influence on the energy of the self-trapped excitation were considered in the dependence of the basic energy parameters of the molecular bridge. The obtained results indicate the possibility of the formation of two types of self-trapped states: a quasi-free excitation, which can easily move through the molecular bridge, and a localized, practically immobile excitation, which is similar to a non-adiabatic polaron quasiparticle.", publisher = "Belgrade : Institute of molecular genetics and genetic engineering", journal = "4th Belgrade Bioinformatics Conference", title = "Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model", pages = "75-75", volume = "4", url = "https://hdl.handle.net/21.15107/rcub_imagine_2015" }
Chevizovich, D., Matić, V.,& Pržulj, Ž.. (2023). Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model. in 4th Belgrade Bioinformatics Conference Belgrade : Institute of molecular genetics and genetic engineering., 4, 75-75. https://hdl.handle.net/21.15107/rcub_imagine_2015
Chevizovich D, Matić V, Pržulj Ž. Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model. in 4th Belgrade Bioinformatics Conference. 2023;4:75-75. https://hdl.handle.net/21.15107/rcub_imagine_2015 .
Chevizovich, Dalibor, Matić, Vasilije, Pržulj, Željko, "Energy and information exchange between “donor” and “molecular bridge” structures: non adiabatic polaron model" in 4th Belgrade Bioinformatics Conference, 4 (2023):75-75, https://hdl.handle.net/21.15107/rcub_imagine_2015 .