DNA Patchy Particles

A simple and effective way to make DNA patchy particles is reported. A small patch of DNA strands is “stamped” from a gold surface onto colloidal particles of different sizes by streptavidin‐biotin bonds. These DNA patchy particles provide direction‐selective and thermoreversible interactions, and h...

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Veröffentlicht in:	Advanced materials (Weinheim) 2013-05, Vol.25 (20), p.2779-2783
Hauptverfasser:	Feng, Lang, Dreyfus, Rémi, Sha, Ruojie, Seeman, Nadrian C., Chaikin, Paul M.
Format:	Artikel
Sprache:	eng
Schlagworte:	anisotropic function Assembly Binding Sites Chemical Physics Colloids Colloids - chemistry Controlled atmospheres Crystallization - methods Deoxyribonucleic acid DNA DNA - chemistry DNA - ultrastructure Gold Gold - chemistry Macromolecular Substances - chemistry Materials Testing Metal Nanoparticles - chemistry Metal Nanoparticles - ultrastructure Molecular Conformation Molecular Imprinting - methods Particle Size patchy particles Physics self-assembly Strands Surface Properties thermal-reversibility
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Beschreibung
Zusammenfassung:	A simple and effective way to make DNA patchy particles is reported. A small patch of DNA strands is “stamped” from a gold surface onto colloidal particles of different sizes by streptavidin‐biotin bonds. These DNA patchy particles provide direction‐selective and thermoreversible interactions, and hence can lead to unique assembly protocols and structures controlled by temperature.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201204864