Science · 2003 · 1.6K citations · 16 references
Natural SciencesBiophysicsMaterials ScienceNanomaterialsNanotechnologyNucleic Acid ChemistryCarbon NanomaterialsCarbon NanotubesDna AssemblyNanotubesRaman SpectroscopySelf-assembly Of NanomaterialsCarbon Nanotube Electronic StructureCarbon Nanotube SeparationCarbon Nanotube SortingDna-based Self-assemblyNanotube SeparationNanotube SortingRaman Spectroscopy Of NanotubesSize-dependent Electronic Properties
Wrapping of carbon nanotubes (CNTs) by single-stranded DNA (ssDNA) was found to be sequence-dependent. A systematic search of the ssDNA library selected a sequence d(GT)n, n = 10 to 45 that self-assembles into a helical structure around individual nanotubes in such a way that the electrostatics of the DNA-CNT hybrid depends on tube diameter and electronic properties, enabling nanotube separation by anion exchange chromatography. Optical absorption and Raman spectroscopy show that early fractions are enriched in the smaller diameter and metallic tubes, whereas late fractions are enriched in the larger diameter and semiconducting tubes.
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Band Gap Fluorescence from Individual Single-Walled Carbon Nanotubes
Michael O’Connell, Sergei M. Bachilo, Chad Huffman et al. · Science · 2002 · 3.9K citations
Structure-Assigned Optical Spectra of Single-Walled Carbon Nanotubes
Sergei M. Bachilo, Michael S. Strano, Carter Kittrell et al. · Science · 2002 · 3.1K citations
Natural Sciences, Chemistry, Physics +17
Jie Liu, Andrew G. Rinzler, Hongjie Dai et al. · Science · 1998 · 2.9K citations
DNA-assisted dispersion and separation of carbon nanotubes
Ming Zheng, Anand Jagota, E. D. Semke et al. · Nature Materials · 2003 · 2.7K citations
Carbon Nanotubes: Synthesis, Integration, and Properties
Hongjie Dai · Accounts of Chemical Research · 2002 · 1.9K citations