Selective adsorption of DNA on chiral surfaces: supercoiled or relaxed conformation.

Angew Chem Int Ed Engl

Physikalisches Institut, WWU Münster, Wilhelm-Klemm-Strasse 10, 48149 Müster, Germany.

Published: September 2009

The right fit: Plasmid DNA molecules show chirality-dependent interaction with gold surfaces modified by L and D N-isobutyrylcysteine. Relaxed DNA molecules have a stronger interaction and adsorption on the L surface, while their counterparts on the D surface maintain a supercoiled conformation, indicating a weak interaction (see picture).

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http://dx.doi.org/10.1002/anie.200806295DOI Listing

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