Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
First-principles study of physisorption of nucleic acid bases on small-diameter carbon nanotubes
Visa övriga samt affilieringar
2008 (Engelska)Ingår i: Nanotechnology, ISSN 0957-4484, E-ISSN 1361-6528, Vol. 19, nr 12Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We report the results of our first-principles study based on density functional theory on the interaction of the nucleic acid base molecules adenine ( A), cytosine ( C), guanine ( G), thymine ( T), and uracil ( U), with a single-walled carbon nanotube (CNT). Specifically, the focus is on the physisorption of base molecules on the outer wall of a ( 5, 0) metallic CNT possessing one of the smallest diameters possible. Compared to the case for CNTs with large diameters, the physisorption energy is found to be reduced in the high-curvature case. The base molecules exhibit significantly different interaction strengths and the calculated binding energies follow the hierarchy G > A > T > C > U, which appears to be independent of the tube curvature. The stabilizing factor in the interaction between the base molecule and CNT is dominated by the molecular polarizability that allows a weakly attractive dispersion force to be induced between them. The present study provides an improved understanding of the role of the base sequence in deoxyribonucleic acid ( DNA) or ribonucleic acid ( RNA) in their interactions with carbon nanotubes of varying diameters.

Ort, förlag, år, upplaga, sidor
2008. Vol. 19, nr 12
Nyckelord [en]
dna, fluorescence, molecules, force
Identifikatorer
URN: urn:nbn:se:kth:diva-17390DOI: 10.1088/0957-4484/19/12/125701ISI: 000254174200023Scopus ID: 2-s2.0-42549089260OAI: oai:DiVA.org:kth-17390DiVA, id: diva2:335434
Anmärkning
QC 20100525Tillgänglig från: 2010-08-05 Skapad: 2010-08-05 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Sök vidare i DiVA

Av författaren/redaktören
Ahuja, Rajeev
Av organisationen
Materialvetenskap
I samma tidskrift
Nanotechnology

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 36 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf