Citation
Lt. Cai et al., Self-assembled DNA networks and their electrical conductivity, APPL PHYS L, 77(19), 2000, pp. 3105-3106
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951
→ ACNP
Volume
77
Issue
19
Year of publication
2000
Pages
3105 - 3106
Database
ISI
SICI code
0003-6951(20001106)77:19<3105:SDNATE>2.0.ZU;2-L
Abstract
We report direct measurements of the intrinsic electrical characteristics o
f polynucleotides using a conducting-probe atomic-force microscope under va
cuum. Poly(dA).poly(dT) self-assemble a cross-interlaced network on mica, b
ut poly(dG).poly(dC) self-organize a uniform two-dimensional reticulated st
ructure. Transport studies demonstrate that poly(dG).poly(dC) can act as a
semiconducting nanowire and show a better conductance than that in poly(dA)
.poly(dT). (C) 2000 American Institute of Physics. [S0003-6951(00)01045-7].