Synthesis of covalent and non-covalent SWNT/DNA self-assembled hybrid nanostructures and their spectroscopic study

Hybrid nanostructures have a wide application in fabrication nanodevices such as nanoelectronic devices, biosensorsand mechanical nanostructures. However, design and fabrication of hybrid nanomaterials with specific properties isconsidered as one of the challenges in chemistry and material science. Molecular self-assembly approach is utilized tobuild the desired systems and components with specific performance and also desired pattern. This feature is veryimpressive to design and manufacture of nanostructures with specific performance. In this study SWNT-DNA hybridnanostructure fabricated by region selective covalent and non-covalent combination between DNA and SWNTnanoparticles. Single strand DNA functionalized by amin group bonded covalently to carboxylic functional group onSWNT. These hybrid nanostructures have different properties in compare of alone SWNT and single strand DNA.Single-strand DNA (10 mer oligonucleotide) was immobilized on side wall of oxidized and shortened SWNT with amidecovalent bond and π stacking non-covalent interaction.

کلیدواژه ها:

Hybrid nanostructure ، region selective combination ، functional DNA ، SWNT