Gas phase sorting of fullerenes, polypeptides and carbon nanotubes

Author(s): H. Ulbricht, M. Berninger, S. Deachapunya, A. Stefanov, M. Arndt

Journal: Nanotechnology

Volume: 19

Page(s): 045502 (6pp)

Year: 2008

DOI Number: 10.1088/0957-4484/19/04/045502

Link: Link to publication


We discuss the Stark deflectometry of micro-modulated molecular beams for the enrichment of biomolecular isomers as well as single-wall carbon nanotubes, and we demonstrate the working principle of this idea with fullerenes. The sorting is based on the species-dependent susceptibility-to-mass ratio χ/m. The device is compatible with a high molecular throughput, and the spatial micro-modulation of the beam permits one to obtain a fine spatial resolution and a high sorting sensitivity.

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