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Biological SciencesBiochemistry

Site-Specific Attachment of gold Nanoparticles to DNA Templates

Authors: Karen A. Stevenson; Govindarajan Muralidharan; Leon Maya; Jack C. Wells; Jacob Barhen; OAK RIDGE NATIONAL LAB TN
Abstract:
DNA was used as a scaffold for the binding of gold nanoparticles using a standard chemical technique. A DNA template was designed with amino-modified thymines located every 3.7 nm which would allow the attachment of the carboxylic acid functionalized gold nanoparticles. The gold particles were covalently bound to the amino groups on the DNA using standard 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) chemistry in the presence of a competitor to block excess gold binding sites. The products were analyzed by transmission electron microscopy (TEM) and atomic force microscopy (AFM).

Limitations: APPROVED FOR PUBLIC RELEASE
Pages: 4
Report Date: 2001
Contract Number: DEAC0500OR22725
Report Number: P610110
Keywords relating to this report:
*DEOXYRIBONUCLEIC ACIDS
*SYNTHESIS(CHEMISTRY)
*SYNTHESIS_CHEMISTRY_
*TEMPLATES
ANISOTROPY
BINDERS
CARBOXYLIC ACIDS
GOLD
NANOTECHNOLOGY
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