Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution

Jin Hee Kim, Masakazu Kataoka, Kazunori Fujisawa, Tomohiro Tojo, Hiroyuki Muramatsu, Sofía M. Vega-Díaz, F. Tristán-López, Takuya Hayashi, Yoong Ahm Kim, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The dispersibility in a DNA solution of bundled multiwalled carbon nanotubes (MWCNTs), having different chemical functional groups on the CNT sidewall, was investigated by optical spectroscopy. We observed that the dispersibility of nitrogen (N)-doped MWCNTs was significantly higher than that of pure MWCNTs and MWCNTs synthesized in the presence of ethanol. This result is supported by the larger amount of adsorbed DNA on N-doped MWCNTs, as well as by the higher binding energy established between nucleobases and the N-doped CNTs. Pure MWCNTs are dispersed in DNA solution via van der Waals and hydrophobic interactions; in contrast, the nitrogenated sites within N-doped MWCNTs provided additional sites for interactions that are important to disperse nanotubes in DNA solutions.

Original languageEnglish (US)
Pages (from-to)14295-14300
Number of pages6
JournalJournal of Physical Chemistry B
Volume115
Issue number48
DOIs
StatePublished - Dec 8 2011

Fingerprint

Carbon Nanotubes
Multiwalled carbon nanotubes (MWCN)
Carbon nanotubes
DNA
Nitrogen
deoxyribonucleic acid
carbon nanotubes
nitrogen
Binding energy
Nanotubes
Functional groups
Ethanol
nanotubes
ethyl alcohol
binding energy
interactions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Kim, J. H., Kataoka, M., Fujisawa, K., Tojo, T., Muramatsu, H., Vega-Díaz, S. M., ... Dresselhaus, M. S. (2011). Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution. Journal of Physical Chemistry B, 115(48), 14295-14300. https://doi.org/10.1021/jp205387y
Kim, Jin Hee ; Kataoka, Masakazu ; Fujisawa, Kazunori ; Tojo, Tomohiro ; Muramatsu, Hiroyuki ; Vega-Díaz, Sofía M. ; Tristán-López, F. ; Hayashi, Takuya ; Kim, Yoong Ahm ; Endo, Morinobu ; Terrones, Mauricio ; Dresselhaus, Mildred S. / Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution. In: Journal of Physical Chemistry B. 2011 ; Vol. 115, No. 48. pp. 14295-14300.
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Kim, JH, Kataoka, M, Fujisawa, K, Tojo, T, Muramatsu, H, Vega-Díaz, SM, Tristán-López, F, Hayashi, T, Kim, YA, Endo, M, Terrones, M & Dresselhaus, MS 2011, 'Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution', Journal of Physical Chemistry B, vol. 115, no. 48, pp. 14295-14300. https://doi.org/10.1021/jp205387y

Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution. / Kim, Jin Hee; Kataoka, Masakazu; Fujisawa, Kazunori; Tojo, Tomohiro; Muramatsu, Hiroyuki; Vega-Díaz, Sofía M.; Tristán-López, F.; Hayashi, Takuya; Kim, Yoong Ahm; Endo, Morinobu; Terrones, Mauricio; Dresselhaus, Mildred S.

In: Journal of Physical Chemistry B, Vol. 115, No. 48, 08.12.2011, p. 14295-14300.

Research output: Contribution to journalArticle

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AU - Kim, Jin Hee

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AU - Fujisawa, Kazunori

AU - Tojo, Tomohiro

AU - Muramatsu, Hiroyuki

AU - Vega-Díaz, Sofía M.

AU - Tristán-López, F.

AU - Hayashi, Takuya

AU - Kim, Yoong Ahm

AU - Endo, Morinobu

AU - Terrones, Mauricio

AU - Dresselhaus, Mildred S.

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Kim JH, Kataoka M, Fujisawa K, Tojo T, Muramatsu H, Vega-Díaz SM et al. Unusually high dispersion of nitrogen-doped carbon nanotubes in DNA solution. Journal of Physical Chemistry B. 2011 Dec 8;115(48):14295-14300. https://doi.org/10.1021/jp205387y