Počet záznamů: 1
Additive transport in DNA molecular circuits
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SYSNO ASEP 0560212 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, Táňa (UFCH-W) SAI, ORCID
Kolivoška, Viliam (UFCH-W) RID, ORCID
Šebera, Jakub (UFCH-W) ORCID, RID
Fukal, J. (CZ)
Řeha, David (MBU-M) ORCID
Buděšínský, M. (CZ)
Rosenberg, I. (CZ)
Bednárová, L. (CZ)
Gasior, Jindřich (UFCH-W)
Mészáros, G. (HU)
Hromadová, Magdaléna (UFCH-W) RID, ORCID, SAI
Sychrovský, V. (CZ)Zdroj.dok. Journal of Materials Chemistry C. - : Royal Society of Chemistry - ISSN 2050-7526
Roč. 10, č. 33 (2022), s. 12022-12031Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova PHOTOINDUCED ELECTRON-TRANSFER ; CHARGE-TRANSPORT ; HOLE TRANSFER Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 ; MBU-M - RVO:61388971 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 fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2023 Elektronická adresa https://hdl.handle.net/11104/0333223
Počet záznamů: 1