Timo Weinrich, Eva A. Jaumann, Ute Scheffer, Thomas F. Prisner, Michael W. Göbel
Chem. Eur. J. 2018, DOI:10.1002/chem.201800167
A photolabile 2-nitrobenzyloxy methyl group can protect nitroxide spin labels against all critical conditions of chemical RNA synthesis and enzymatic strand ligation.
Markus Kramer, Clemens Richert
Chem. Biodiversity 2017, DOI:10.1002/cbdv.201700315 (open access)
Chemical ligation of synthetic oligonucleotides in small origami nanostructures is higher yielding than in linear duplexes.
DNA nanotechnology enables the synthesis of nanometer-sized objects that can be site-specifically functionalized with a large variety of materials. For these reasons, DNA-based devices such as DNA origami are being considered for applications in molecular biology and nanomedicine. However, many DNA structures need a higher ionic strength than that of common cell culture buffers or bodily fluids to maintain their integrity and can be degraded quickly by nucleases. To overcome these deficiencies, we coated several different DNA origami structures with a cationic poly(ethylene glycol)–polylysine block copolymer, which electrostatically covered the DNA nanostructures to form DNA origami polyplex micelles (DOPMs). This straightforward, cost-effective, and robust route to protect DNA-based structures could therefore enable applications in biology and nanomedicine where unprotected DNA origami would be degraded.
Moritz Welter, Daniela Verga, Andreas Marx
Angew. Chem. Int. Ed. 2016, DOI:10.1002/ange.201604641
Enzym-verknüpfte Nukleotide dienen trotz ihrer Größe als Substrat für hochselektive DNA-Polymerasen und können so zum Beispiel zur Detektion und Genotypisierung von DNA- und RNA-Templaten genutzt werden.
