191. DNA-PROGRAMMED ASSEMBLY OF CDSE NANORODS

Department: NanoEngineering
Faculty Advisor(s): Jennifer Cha

Primary Student
Name: Sarah Sameera Chowdhury
Email: schowdhu@ucsd.edu
Phone: 858-246-0983
Grad Year: 2015

Abstract
Controlling the orientation and organization of semiconducting nanorods is of great interest due to the potential for incorporating self-assembled nanorod arrays into photovoltaic and nanoelectronic devices. As it is site-specific, DNA is an attractive material for precisely directing the organization of semiconducting nanocrystals. In this work, CdSe nanorods are made water-soluble by functionalization with metal-coordinating hydrophilic ligands. DNA is then covalently attached to reactive functional groups on ligands bound to the nanorod surface. The organization of nanorod-oligonucleotide conjugates is controlled in solution by DNA hybridization between complementary base sequences extending from the nanorods. The application can also be extended to binary systems.

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