Structure-based carbon nanotube sorting by sequence-dependent DNA assembly.

@article{Zheng2003StructurebasedCN,
  title={Structure-based carbon nanotube sorting by sequence-dependent DNA assembly.},
  author={Ming Zheng and Anand Jagota and Michael S. Strano and Adelina Pinheiro Santos and Paul W. Barone and Shin Grace Chou and Bruce A Diner and Mildred S. Dresselhaus and Robert S. McLean and Gloria Bibiana Onoa and Georgii Samsonidze and Ellen D Semke and Monica L Usrey and Dennis J. Walls},
  journal={Science},
  year={2003},
  volume={302 5650},
  pages={1545-8}
}
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… CONTINUE READING
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