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  Sequence-controlled chiral induced spin selectivity effect in ds-DNA

Bangruwa, N., Suryansh, Peralta, M., Gutierrez, R., Cuniberti, G., & Mishra, D. (2023). Sequence-controlled chiral induced spin selectivity effect in ds-DNA. The Journal of Chemical Physics, 159(4): 044702, pp. 1-10. doi:10.1063/5.0157931.

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Genre: Zeitschriftenartikel

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 Urheber:
Bangruwa, Neeraj1, Autor
Suryansh1, Autor
Peralta, Mayra2, Autor           
Gutierrez, Rafael1, Autor
Cuniberti, Gianaurelio1, Autor
Mishra, Debabrata1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              

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Schlagwörter: Electrochemical impedance spectroscopy; Electrons; Particle beams; Semiconductor quantum dots; Stereochemistry; Average lifetime; DNA molecules; Electrochemical-impedance spectroscopies; Photoexcited electrons; Selectivity effects; Sequence-dependent; Spin-polarized electrons; Tight-binding calculations; Time decay; Time-correlated single photon counting; DNA
 Zusammenfassung: In this research, we explore sequence-dependent chiral-induced spin selectivity (CISS) in double-stranded (ds)-DNA using time-correlated single-photon counting and electrochemical impedance spectroscopy supplemented by tight-binding calculations of the phenomenon for the first time. The average lifetime of the photo-excited electrons in a Quantum Dot-DNA system is influenced by the CISS effect generated by the DNA molecule, and the difference in average time decay of electrons was found to be 345 ps for opposite polarity (“UP” and “DOWN”) of spins due to the CISS effect. Moreover, the yield of spin-polarized electrons due to the CISS effect was reduced by more than 35 from perfect DNA to DNA with point mutations. Remarkably, by employing a tight binding method combined with Green’s function formalism for transport, simulations of the process support the observed experimental trends. Our results provide a basic understanding of the sequence-specific spin-dependent electron transfer through ds-DNA. These results would help to build spin-based next-generation DNA sensors. © 2023 Author(s).

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Sprache(n): eng - English
 Datum: 2023-07-242023-07-24
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1063/5.0157931
BibTex Citekey: Bangruwa2023
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Titel: The Journal of Chemical Physics
  Kurztitel : J. Chem. Phys.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Woodbury, N.Y. : American Institute of Physics
Seiten: - Band / Heft: 159 (4) Artikelnummer: 044702 Start- / Endseite: 1 - 10 Identifikator: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226