DNA-templated nanowire fabrication.
DNA-based nanotechnology is a vibrant and expanding field. The specific molecular recognition properties and large aspect ratio of DNA make the molecule a promising template for bottom-up fabrication of nanowires and nanodevices. Fabricating well-defined DNA-templated nanowires requires aligned surface deposition and specific metallization of DNA molecules. DNA localization on surfaces has been achieved by bulk fluid flow or a moving air-water interface, and localization efficiency has been improved by surface modifications that favor DNA-substrate interaction. DNA-templated nanowires have been constructed from gold, silver, copper, palladium, and platinum, and template modifications have allowed the bottom-up construction of a simple electronic nanodevice. These achievements demonstrate the promising feasibility of using bottom-up nanofabrication to create increasingly sophisticated nanodevices.
Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602-5700, USA.
Randall M
RM
Stoltenberg
Adam T
AT
Woolley
D003460:Crystallization / Q000379:methods*; D004247:DNA / Q000737:chemistry* / Q000648:ultrastructure*; D004559:Electric Wiring; D004581:Electronics; D008420:Manufactured Materials; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*
D004247:DNA