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Proceedings Paper

Gap-modulated versus constant current mode as a tool to discriminate between DNA and substrate structure in STM
Author(s): Antonio Cricenti; S. Selci; M. Scarselli; Renato Generosi; F. Amaldi; G. Chiarotti
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Paper Abstract

We present several experimental results of imaging DNA on graphite. Images have been taken simultaneously in constant-current and gap-modulated mode. This way of imaging has been very helpful in order to discriminate between structures due to biological molecules and substrate artifacts. A possible way of using the tip to confirm this conclusion is shown.

Paper Details

Date Published: 4 June 1993
PDF: 8 pages
Proc. SPIE 1855, Scanning Probe Microscopies II, (4 June 1993); doi: 10.1117/12.146384
Show Author Affiliations
Antonio Cricenti, Instituto di Struttura della Materia CNR (Italy)
S. Selci, Instituto di Struttura della Materia CNR (Italy)
M. Scarselli, Instituto di Struttura della Materia CNR (Italy)
Renato Generosi, Instituto di Struttura della Materia CNR (Italy)
F. Amaldi, Instituto di Struttura della Materia CNR (Italy)
G. Chiarotti, Instituto di Struttura della Materia CNR (Italy)


Published in SPIE Proceedings Vol. 1855:
Scanning Probe Microscopies II
Clayton C. Williams, Editor(s)

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