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- Title
ELECTROPHORETIC FRACTIONATION OF CARBON NANOTUBE DISPERSIONS ON AGAROSE GELS.
- Authors
Vetcher, Alexandre A.; Jun-Huei Fan; Vetcher, Ivan A.; Lin, Tiffany; Abramov, Semen M.; Draper, Rockford; Kozlov, Mikhail E.; Baughman, Ray H.; Levene, Stephen D.
- Abstract
We show that various aqueous suspensions of single-walled and multi-walled carbon nanotubes, dispersed using either common surfactants or DNA, can be separated into components using agarose gel electrophoresis. In a DC electric field, carbon nanotubes and nanotube–DNA complexes migrate in the gel in the direction of positive potential to form well-defined bands. Raman spectroscopy as a function of band position shows that nanotubes having different spectroscopic properties have distinct electrophoretic mobilities. The results suggest that the separation of nanotubes according to structure can be achieved by this procedure. We discuss the factors affecting the mobility of the nanotube complexes and propose analytical applications of this technique.
- Subjects
GEL electrophoresis; CARBON nanotubes; SURFACE active agents; DNA; ELECTRIC fields; RAMAN spectroscopy
- Publication
International Journal of Nanoscience, 2007, Vol 6, Issue 1, p1
- ISSN
0219-581X
- Publication type
Article
- DOI
10.1142/S0219581X07004304