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Enrichment of Single-Walled Carbon Nanotubes by Diameter in Density Gradients
Abstract
The bulk enrichment and separation of single-walled carbon nanotubes (SWNTs) by diameter has been achieved through ultracentrifugation of DNA-wrapped SWNTs in aqueous density gradients. The separation is identified by the visual formation of colored bands of SWNTs in the density range of 1.11-1.17 g cm(-3). The optical absorbance spectra of the separated SWNTs indicate that SWNTs of decreasing diameter are increasingly more buoyant. This nondestructive and scalable separation strategy is expected to impact the fields of molecular electronics, optoelectronics, and sensing where SWNTs of a monodisperse band gap are essential.
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Citations
Cited by
Carbon Nanotube−Inorganic Hybrids
Eder, D. (2010) · Chemical Reviews · doi:10.1021/cr800433k · Cited by 819
von der Kammer, F., Ferguson, P. L., Holden, P. A., Masion, A., Rogers, K. R., Klaine, S. J., Koelmans, A. A., Horne, N., & Unrine, J. M. (2012) · Environmental Toxicology and Chemistry · doi:10.1002/etc.723 · Cited by 448
Density gradient ultracentrifugation for colloidal nanostructures separation and investigation
Li, P., Kumar, A., Ma, J., Kuang, Y., Luo, L., & Sun, X. (2018) · Science Bulletin · doi:10.1016/j.scib.2018.04.014 · Cited by 67
Metadata
- Authors
- Arnold, M. S., Stupp, S. I., & Hersam, M. C.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-03-12
- Volume
- 5
- Issue
- 4
- Pages
- 713-718
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W1978245540
- Cited by
- 516
- References
- 0
- FWCI
- 14.31
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Enrichment of Single-Walled Carbon Nanotubes by Diameter in Density Gradients. https://app.cochat.ai/papers/10.1021/nl050133o
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- Arnold, M. S., Stupp, S. I., & Hersam, M. C. (2005). Enrichment of Single-Walled Carbon Nanotubes by Diameter in Density Gradients. Nano Letters. https://doi.org/10.1021/nl050133o
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