DNA as a template in self-assembly of one-dimensional au nanostructure

Author

Wang, Dau-Chung ; Chen, Gen-You ; Chen, Ken-Yen ; Tsai, Cheng-Hsien

Author_Institution

Grad. Sch. of Eng. Sci. & Technol., Nat. Yunlin Univ. of Sci. & Technol., Yunlin, Taiwan

fYear

2011

fDate

20-23 Feb. 2011

Firstpage

393

Lastpage

396

Abstract

In this study, an alkanethiol-assisted self-assembly of Au nano-particles and its size tunable technique were confirmed. To fabricate a one-dimensional template, λ-DNA was first laid on mica substrate by dropping diluted λ-DNA solution, 12.6 ng/μl, on freshly cleaved mica. By dropping colloidal gold solution on mica surface with the DNA templates laid on it, the λ-DNA was then pulled straight via capillary force by applying solvent absorbing tissue at outer circumference of the mica substrate. And it fixed on mica via gravity force and Van der Waals force between mica surface and the DNA. Au nano-particles would be arrayed along the straight DNA molecules to form one-dimensional Au arrays.

Keywords

DNA; bioelectric phenomena; biological techniques; biological tissues; gold; molecular biophysics; nanofabrication; nanoparticles; self-assembly; van der Waals forces; Au; DNA templates; Van der Waals force; alkanethiol-assisted self-assembly; capillary force; colloidal gold solution; diluted λ-DNA solution; gold nanoparticles; gravity force; mica substrate; mica surface; one-dimensional Au arrays; one-dimensional nanostructure; one-dimensional template; self-assembly; size tunable technique; solvent absorbing tissue; straight DNA molecules; DNA; Gold; Gravity; Self-assembly; Solvents; Substrates; λ-DNA; freshly cleaved mica; one-dimensional Au arrays; one-dimensional template; self-assembly;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2011 IEEE International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-61284-775-7

Type

conf

DOI

10.1109/NEMS.2011.6017375

Filename

6017375