DOI QR코드

DOI QR Code

Directed Alignment of DNA Molecule between the gold electrodes

금 전극위에 DNA 분자의 정렬에 관한 연구

  • Received : 2015.06.10
  • Accepted : 2015.08.06
  • Published : 2015.08.31

Abstract

In this paper, the directed alignment methode of the DNA molecule between the Au electrodes was suggested for the application of nano devices. To fabricate the nano device coated DNA, 2-Aminoethanthiol(AET) was coated on Au electrodes which was formed using photo-lithography process on $SiO_2/Si$ substrates. In general, the AET that was a positive charge with $NH^{3+}$ was strongly combined under the electrostatic interaction with DNA molecule which had to be a negative charge. The DNA molecules could be easily aligned between Au electrodes coated with AET. The structures of the DNA molecules were investigated using AFM(Atomic force microscope), they were changed from single types to bundle according to the AET concentrations.

Keywords

Au electrodes;DNA;nano-electrodes;2-Aminoethanthiol(AET);${\lambda}$-DNA bridge

References

  1. A. Kingon, "Memories are made of ferroelectric thin films", Nature 401, pp.658, 1999. DOI: http://dx.doi.org/10.1038/44307 https://doi.org/10.1038/44307
  2. A. Javey, J. Guo, D. B. Farmer, Q. Wang, D. Wang, R. G. Gordon, M. Lundstrom, and H. Dai, "Carbon Nanotube Field-Effect Transistors With Integrated Ohmic Contacts and High-k Gate Dielectrics", Nano Letter, 4, pp.447, 2004. DOI: http://dx.doi.org/10.1021/nl035185x https://doi.org/10.1021/nl035185x
  3. O. Akhavan, E. Ghaderi and R. Rahighi, "Toward single-DNA electrochemical biosensing by graphene nanowalls", ACS Nano 6, pp.2904, 2012. DOI: http://dx.doi.org/10.1021/nn300261t https://doi.org/10.1021/nn300261t
  4. L. Cai, H. Tabata, and T. Kawai, "Self-assembled DNA networks and their electrical conductivity", Appl. Phys. Lett. 77, pp.3105, 2000. DOI: http://dx.doi.org/10.1063/1.1323546 https://doi.org/10.1063/1.1323546
  5. K.-H. Yoo, D.H. Ha, J.-O. Lee, J.W. Park, Jinhee Kim, J. J. Kim, H.-Y. Lee, T. Kawai, and H. Y. Choi, "Electrical Conduction through Poly(dA)-Poly(dT) and Poly(dG)-Poly(dC) DNA Molecules", Phys. Rev. Lett. 87, pp.19, 2001. DOI: http://dx.doi.org/10.1103/PhysRevLett.87.198102 https://doi.org/10.1103/PhysRevLett.87.198102
  6. A. Bezryadin and C. Dkker, "Nanofabrication of electrodes with sub-5 nm spacing for transport experiments on single molecules and metal clusters", J. Vac. Sci. Technol. B 15, pp.793, 1997. DOI: http://dx.doi.org/10.1116/1.589411 https://doi.org/10.1116/1.589411
  7. H. Nakao, H. Hayashi, F. Iwata, H. Karasawa, Koji Hirano, S. Sugiyama and T. Ohtani, "Fabricating and aligning pi-conjugated polymer-functionalized DNA nanowires: atomic force microscopic and scanning near-field optical microscopic studies", Langmuir 21, pp.7945, 2005. DOI: http://dx.doi.org/10.1021/la050145p https://doi.org/10.1021/la050145p
  8. H. J. Kim, Y. Roh and B. Hong, "Selective Formation of a Latticed Nanostructure with the Precise Alignment of DNA-Templated Gold Nanowires", Langmuir 26, pp.18315, 2010. DOI: http://dx.doi.org/10.1021/la101086h https://doi.org/10.1021/la101086h

Acknowledgement

Supported by : 서일대학교