Jump to main content
Jump to site search

Issue 95, 2014
Previous Article Next Article

Assembling CdSe/ZnS core–shell quantum dots on localized DNA nanostructures

Author affiliations

Abstract

We have demonstrated the assembly of CdSe/ZnS core–shell quantum dots (Qdots) on DNA templates that could potentially be used in practical devices and sensors. Qdots were aligned on one and two dimensional DNA nanostructures through electrostatic interaction between Qdots and DNA nanostructures. About 2 to 3 times larger adsorption ratios of Qdots on DNA templates were observed on both positively and negatively charged substrates. Moreover, assembled Qdots on DNA templates exhibit significant improvement in electric characteristics with a distinct semiconductor-like plateau. The results obtained in this research show the specific complementary relationship between Qdots and DNA nanostructures: the DNA nanostructures guide precise control of Qdot assembly on desired places and assembled Qdots help to increase the functionality of complexes. These approaches open up opportunities to control accurate positioning of specific nano and biomaterials with full functionality and efficiency in a given system.

Graphical abstract: Assembling CdSe/ZnS core–shell quantum dots on localized DNA nanostructures

Back to tab navigation

Supplementary files

Article information


Submitted
11 May 2014
Accepted
08 Oct 2014
First published
08 Oct 2014

RSC Adv., 2014,4, 53201-53205
Article type
Communication
Author version available

Assembling CdSe/ZnS core–shell quantum dots on localized DNA nanostructures

J. Lee, J. Lee, S. M. Yeon, S. Min, J. Kim, H. Choi, S. Kim, J. Koo, K. Kim, S. H. Park and Y. Roh, RSC Adv., 2014, 4, 53201
DOI: 10.1039/C4RA04382K

Social activity

Search articles by author

Spotlight

Advertisements