Phys. Rev. Lett. 86, 3670–3673 (2001)Metallic Conduction through Engineered DNA: DNA Nanoelectronic Building BlocksReceived 4 August 2000; published in the issue dated 16 April 2001 A novel way of engineering DNA molecules involves substituting the imino proton of each base pair with a metal ion to obtain M-DNA with altered electronic properties. We report the first direct evidence of metalliclike conduction through 15μm long M-DNA. In contrast, measurements on B-DNA give evidence of semiconducting behavior with a few hundred meV band gap at room temperature. The drastic change of M-DNA conductivity points to a new degree of freedom in the development of future molecular electronics utilizing DNA, such as creating all-DNA junction devices for use as nanoelectronic building blocks. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3670
DOI:
10.1103/PhysRevLett.86.3670
PACS:
87.14.Gg, 72.80.Le, 73.90.+f, 87.15.-v
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.