Author/Authors :
Yang، نويسنده , , Wenrong and Moghaddam، نويسنده , , Minoo J. and Taylor، نويسنده , , Sarah and Bojarski، نويسنده , , Barbara and Wieczorek، نويسنده , , Lech and Herrmann، نويسنده , , Jan and McCall، نويسنده , , Maxine J.، نويسنده ,
Abstract :
Two methods for attaching DNA to oxidized single-walled carbon nanotubes either in organic solvent or aqueous solution are described. The sites of DNA attachment to the nanotubes have been verified by binding gold nanoparticles modified with DNA of complementary sequence to the DNA-modified nanotubes, and imaging with TEM. The gold nanoparticles appear on the tips of the nanotubes, and at isolated positions (defects) on the sidewalls. The methods provide versatility for the modification of nanotubes with DNA for their directed assembly, or for their composites with gold nanoparticles, into nanoscale devices.
