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Updated: Aug 3, 2026

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
Published on: July 22, 2013
High resolution capillary electrophoresis of carbon nanotubes
Stephen K Doorn1, Robert E Fields, Hui Hu
1Chemistry Division (C-ACS, MS-J964), Los Alamos National Laboratory, Los Alamos, NM 87545, USA. skdoorn@lanl.gov
Abstract:
Purification of single-walled carbon nanotubes by capillary electrophoresis (CE) is demonstrated. Real-time Raman spectroscopy of the separation process and single-wavelength UV/vis detection show the ability of CE to provide high-resolution separations of nanotube fractions with baseline separation. AFM images of collected fractions demonstrate that separations are based on tube length. The separation method is suggested to be based on alignment of the nanotubes along the separation field.

