The shorter, the more dispersible: An iterative, emulsion-based shortening technique has been used to reduce the length of single-walled carbon nanotubes (SWNTs) to the same order of magnitude as their diameter (ca. 1 nm), thus achieving an effectively “zero-dimensional” structure with improved dispersibility and, after hydroxylation, long-term water solubility. Finally, zero-dimensional SWNTs were positively identified using mass spectrometry for the first time.
Dr. Kaladhar Kamalasanan, Gottardi, R., Tan, S., Chen, Y., Godugu, B., Rothstein, S., Balazs, A. C., Star, A., and Little, S. R., ““Zero-Dimensional” Single-Walled Carbon Nanotubes”, Angewandte Chemie International Edition, vol. 52, no. 43, pp. 11308–11312, 2013.