Send to

Choose Destination
See comment in PubMed Commons below
Nano Lett. 2013 Sep 11;13(9):4449-55. doi: 10.1021/nl4023308. Epub 2013 Aug 16.

Responsive multidomain free-standing films of gold nanoparticles assembled by DNA-directed layer-by-layer approach.

Author information

Department of Chemical and Biomolecular Engineering and ‡Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.


Responsive free-standing films of gold nanoparticles are fabricated by a new approach combining the programmable DNA-directed self-assembly and the layer-by-layer (LbL) thin film fabrication technique. This approach allows for the assembly of multidomain nanoparticle films with each domain possessing distinct properties in response to external stimuli, which is essential for the formation of dynamic nanostructures. Large area free-standing films of DNA-modified gold particles are fabricated by the selective melting of a sacrificial nanoparticle domain, taking advantage of the unique sharp melting transition of DNA-modified gold nanoparticles. Furthermore, we show that released multidomain films can be designed to further split into multiple intact daughter films in a precisely controlled manner, demonstrating that this new approach provides a powerful means to fabricate free-standing nanoparticle films that are capable of programmable transformation.

[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Support Center