Počet záznamů: 1

Additive transport in DNA molecular circuits

SYSNO ASEP	0563907
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Additive transport in DNA molecular circuits
Tvůrce(i)	Sebechlebská, T. (SK) Kolivoška, V. (CZ) Šebera, Jakub (UOCHB-X)_{RID, ORCID} Fukal, Jiří (UOCHB-X)_{ORCID, RID} Řeha, D. (CZ) Buděšínský, Miloš (UOCHB-X)_{RID, ORCID} Rosenberg, Ivan (UOCHB-X)_{RID, ORCID} Bednárová, Lucie (UOCHB-X)_{RID, ORCID} Gasior, J. (CZ) Mészáros, G. (HU) Hromadová, M. (CZ) Sychrovský, Vladimír (UOCHB-X)_{RID, ORCID}
Zdroj.dok.	Journal of Materials Chemistry C. - : Royal Society of Chemistry - ISSN 2050-7526 Roč. 10, č. 33 (2022), s. 12022-12031
Poč.str.	10 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	photoinduced electron-transfer ; HG-II-T ; charge-transport
Obor OECD	Biophysics
CEP	GA18-14990S GA ČR - Grantová agentura ČR
Způsob publikování	Open access
Institucionální podpora	UOCHB-X - RVO:61388963
UT WOS	000837444200001
EID SCOPUS	85135723962
DOI	10.1039/d2tc01219g
Anotace	This work describes additive transport in DNA molecules due to a self-assembly of complementary single-stranded deoxyribonucleic acid chains, i.e. DNA hybridization. Charge transport properties in the DNA junctions at the single molecule level were studied experimentally by the break junction technique in an aqueous environment and theoretically including a non-equilibrium Green's function approach within the density functional based tight-binding method and molecular orbital calculations using density functional method and molecular dynamics simulations. Two types of anchoring groups, namely, amino and thiolate moieties were used to connect the single-stranded DNA (anchor-linker-3'-GGCACTCGG-5'-linker-anchor) to gold electrodes. Double-stranded DNA junctions were prepared by hybridization of single-stranded DNA with a complementary oligonucleotide chain (5'-CCGTGAGCC-3') not containing linkers and anchoring groups. Three stable junction configurations were observed for both single-stranded and double-stranded DNA irrespective of the anchoring group, whereas junction conductance almost doubled upon DNA hybridization. Thiolate anchoring led to more robust and longer junction configurations compared to NH2 groups. Reasons for the observed conductance enhancement and the anchoring group effect on the overall conductance are being discussed.
Pracoviště	Ústav organické chemie a biochemie
Kontakt	asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434
Rok sběru	2023
Elektronická adresa	https://doi.org/10.1039/D2TC01219G

Počet záznamů: 1