期刊
NANO LETTERS
卷 11, 期 8, 页码 3489-3492出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl202066c
关键词
Nanoparticles; electroless deposition; DNA origami; self-assembly; nanofabrication; metallization
类别
资金
- ONR [N000140910249]
- DGAPA-UNAM
- National Science Foundation [EMT-0829749, CCF-0835794]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0835794] Funding Source: National Science Foundation
We present a novel method for producing complex metallic nanostructures of programmable design. DNA origami templates, modified to have DNA binding sites with a uniquely coded sequence, were adsorbed onto silicon dioxide substrates. Gold nanoparticles functionalized with the cDNA sequence were then attached. These seed nanoparticles were later enlarged, and even fused, by electroless deposition of silver. Using this method, we constructed a variety of metallic structures, including rings, pairs of bars, and H shapes.
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