From Ribbons to Networks: Hierarchical Organization of DNA-Grafted Supramolecular Polymers
| Autor: | Yuliia Vyborna, Mykhailo Vybornyi, Robert Häner |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Macromolecular Substances
Polymers Base pair Supramolecular chemistry Stacking Biochemistry Catalysis chemistry.chemical_compound Colloid and Surface Chemistry 540 Chemistry Polymer chemistry A-DNA Base Pairing chemistry.chemical_classification Pyrenes Molecular Structure Oligonucleotide DNA General Chemistry Polymer Nanostructures Supramolecular polymers Crystallography chemistry 570 Life sciences biology Pyrene |
| Zdroj: | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY |
| ISSN: | 1520-5126 0002-7863 |
| Popis: | DNA-grafted supramolecular polymers (SPs) allow the programmed organization of DNA in a highly regular, one-dimensional array. Oligonucleotides are arranged along the edges of pyrene-based helical polymers. Addition of complementary oligonucleotides triggers the assembly of individual nanoribbons resulting in the development of extended supramolecular networks. Network formation is enabled by cooperative coaxial stacking interactions of terminal GC base pairs. The process is accompanied by structural changes in the pyrene polymer core that can be followed spectroscopically. Network formation is reversible, and disassembly into individual ribbons is realized either via thermal denaturation or by addition of a DNA separator strand. |
| Databáze: | OpenAIRE |
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