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Self‐Assembly of Crosslinked DNA–Gold Nanoparticle Layers Visualized by In‐Situ Scanning Force Microscopy
Author(s) -
Zou B.,
Ceyhan B.,
Simon U.,
Niemeyer C. M.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200402037
Subject(s) - nanobiotechnology , nanotechnology , materials science , nanoparticle , in situ , substrate (aquarium) , streptavidin , linker , microscopy , self assembly , computer science , biotin , chemistry , optics , biochemistry , oceanography , physics , organic chemistry , geology , operating system
Two‐dimensional streptavidin crystals are used as the substrate for DNA‐directed assembly of crosslinked gold‐nanoparticle aggregates (see Figure). As shown by in‐situ scanning force microscopy, the interparticle distance can be controlled by the length of the DNA linker connecting individual particles. This system may lead to nanostructured materials with programmable functionalities for use in nanobiotechnology.