Macromolecular Rapid Communications

Cover image for Vol. 35 Issue 14

July 06, 2010

Polymer Conjugates: Bioorganic Nanoobjects of DNA Block Copolymers

Polymer Conjugates: Bioorganic Nanoobjects of DNA Block Copolymers

Mukhles Sowwan*, Maryam Faroun, Elad Mentovich, Imad Ibrahim, Shayma Haboush Fikri Emrah Alemdaroglu, Minseok Kwak, Shachar Richter*, and Andreas Herrmann*

Amphiphilic block copolymers comprized of organic polymers and oligonucleotides form micelles in aqueous solution due to microphase separation. These DNA block copolymer (DBC) aggregates are made of a hydrophobic polymer core and a corona of single-stranded DNA. A. Herrmann and co-workers investigate the electrical features of these bioorganic nanoobjects by doping the polymeric core of the micelles with ferrocene molecules. They could show that doping does not alter the size or shape of the micelles but significantly changes their electrical properties, as revealed by electrostatic force microscopy measurements. Their findings may lead to new possibility of using these nanoobjects in e.g. nanoelectronic and sensing applications.

Macromol. Rapid Commun., DOI: 10.1002/marc.200900904

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