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Metallic conduction through engineered DNA: DNA nanoelectronic building blocks | | A Rakitin
; P Aich
; C Papadopoulos
; Y Kobzar
; A S Vedeneev
; J S Lee
; J M Xu
; | | Date: |
16 Apr 2001 | | Journal: | Phys Rev Lett, 86 (16), 3670-3 | | Abstract: | 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 15 microm 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. | | Source: | PubMed, pmid11328050 | | Services: | Forum | Review | Favorites | |
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