CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
The conductive properties of single DNA molecules studied by torsion tunneling atomic force microscopy
Wang, W; Niu, DX; Jiang, CR; Yang, XJ; xjyang@fudan.edu.cn
2014
Source PublicationNANOTECHNOLOGY
ISSN0957-4484
Volume25Issue:2
AbstractThe conductive properties of single natural lambda-DNA molecules are studied by torsion tunneling atomic force microscopy (TR-TUNA). The currents both parallel to and perpendicular to the DNA chains are investigated, but only weak or even no current signals are detected by TR-TUNA. To improve the conductance of DNA molecules, silver and copper metallized DNAs are fabricated and their conductivities are checked by TR-TUNA. It is found that for both Cu- and Ag-DNAs, the conductivity perpendicular to the DNA chain is enhanced significantly as the metal clusters are attached to the DNA chains. But parallel to the chain the electrical transport is still weak, most probably due to the 'beads-on-a-string' constructions of metallized DNAs.
KeywordNanowire Fabrication Electrical-transport Charge-transport Mode Microscopy Arrays Metallization Nanoscale Silver
Indexed BySCI
Language英语
WOS IDWOS:000328888200014
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14479
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorxjyang@fudan.edu.cn
Recommended Citation
GB/T 7714
Wang, W,Niu, DX,Jiang, CR,et al. The conductive properties of single DNA molecules studied by torsion tunneling atomic force microscopy[J]. NANOTECHNOLOGY,2014,25(2).
APA Wang, W,Niu, DX,Jiang, CR,Yang, XJ,&xjyang@fudan.edu.cn.(2014).The conductive properties of single DNA molecules studied by torsion tunneling atomic force microscopy.NANOTECHNOLOGY,25(2).
MLA Wang, W,et al."The conductive properties of single DNA molecules studied by torsion tunneling atomic force microscopy".NANOTECHNOLOGY 25.2(2014).
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