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Nanosoftball made of DNA
Date:4/2/2008

nthesized the 20 computed trisoligonucleotides by means of a solid-phase synthesis. The three DNA strands were always attached by way of an aromatic six-membered carbon ring. When mixed in equal parts in a buffer solution, these building blocks do aggregate to form the expected product: regular dodecahedra. Atomic force microscopy images reveal them to be uniform particles with a diameter of about 20 nm. Under pressure, the dodecahedra are quite flexible, the can be deformed like soft balls without incurring any damage.

If the trisoligonucleotides are equipped with pendant arms, the dodecahedra can be outfitted with additional functional molecules. In this way, highly complex nanoconstructs, resembling little viruses in shape and size, should be accessible in the future. Potential applications range from medical diagnostics to nanoelectronics.


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Contact: Guenter von Kiedrowski
kiedro@rub.de
49-234-323-218
Wiley-Blackwell
Source:Eurekalert  

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Nanosoftball made of DNA
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