Abstract
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.
Bibliography
Zheng, M., Jagota, A., Strano, M. S., Santos, A. P., Barone, P., Chou, S. G., Diner, B. A., Dresselhaus, M. S., Mclean, R. S., Onoa, G. B., Samsonidze, G. G., Semke, E. D., Usrey, M., & Walls, D. J. (2003). Structure-Based Carbon Nanotube Sorting by Sequence-Dependent DNA Assembly. Science, 302(5650), 1545â1548.
Authors
14
- Ming Zheng (first)
- Anand Jagota (additional)
- Michael S. Strano (additional)
- Adelina P. Santos (additional)
- Paul Barone (additional)
- S. Grace Chou (additional)
- Bruce A. Diner (additional)
- Mildred S. Dresselhaus (additional)
- Robert S. Mclean (additional)
- G. Bibiana Onoa (additional)
- Georgii G. Samsonidze (additional)
- Ellen D. Semke (additional)
- Monica Usrey (additional)
- Dennis J. Walls (additional)
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- This work comes from the Molecular Electronics group at DuPont CR&D. The DuPont group developed DNA-CNT hybrid materials and CNT separation strategy. The UIUC group and the MIT group independently conducted Raman spectroscopy analysis on fractionated CNT samples. A.P.S. acknowledges partial support from the Brazilian agency CNPq. M.S. acknowledges fundings from the National Science Foundation (grant CTS-0330350) the School of Chemical Sciences of the UIUC and U.S. Department of Energy (award no. DEFG02-91ER45439).
Dates
Type | When |
---|---|
Created | 21 years, 8 months ago (Nov. 28, 2003, 10:38 a.m.) |
Deposited | 1 year, 7 months ago (Jan. 9, 2024, 9:30 p.m.) |
Indexed | 3 weeks, 1 day ago (July 30, 2025, 8:23 p.m.) |
Issued | 21 years, 8 months ago (Nov. 28, 2003) |
Published | 21 years, 8 months ago (Nov. 28, 2003) |
Published Print | 21 years, 8 months ago (Nov. 28, 2003) |
@article{Zheng_2003, title={Structure-Based Carbon Nanotube Sorting by Sequence-Dependent DNA Assembly}, volume={302}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1091911}, DOI={10.1126/science.1091911}, number={5650}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Zheng, Ming and Jagota, Anand and Strano, Michael S. and Santos, Adelina P. and Barone, Paul and Chou, S. Grace and Diner, Bruce A. and Dresselhaus, Mildred S. and Mclean, Robert S. and Onoa, G. Bibiana and Samsonidze, Georgii G. and Semke, Ellen D. and Usrey, Monica and Walls, Dennis J.}, year={2003}, month=nov, pages={1545–1548} }