Many potential applications of single-walled carbon nanotubes (SWNTs) require that they be isolated from one another. This may be accomplished through covalent or noncovalent SWNT functionalization. The noncovalent approach preserves the intrinsic electrical, optical, and mechanical properties of SWNTs and can be achieved by dispersing SWNTs in aqueous solution using surfactants, polymers, or b...

In our recent paper, we tried to rationally understand previous results of modeling hydrogen adsorption in pure single-walled carbon nanotubes ~SWNTs!, including the results of Cheng et al., by doing simpler calculations that a large percentage of the community can perform and check. For this purpose all the raw data of our calculations were put on the web. Cheng et al.’s comments do not seem t...

Single-walled carbon nanotubes (SWNTs) have caught much attention as materials realizing various low-dimensional transport properties with their quasi-one-dimensional structures. The confined dynamics gives rise to unique heat and mass transport that are beneficial for applications. The current study highlights the confined dynamics by means of classical molecular dynamics (MD) simulations. The...

In a recent paper @J. Chem. Phys. 119, 2376 ~2003!#, Li et al. concluded from a series of calculations and analysis that ‘‘when compared to other pure carbon nanostructures, we find no rational reason yet why carbon nanotubes should be superior in either binding energies or adsorption/ desorption kinetics’’ for H2 storage. 1 This is in contrast to our encouraging computational data and analysis...

We have achieved two types of biomolecular sensors, colorimetric protein chips and label-free electrical sensors using high yield of single-walled carbon nanotubes (SWNTs). First, pseudo 3dimensional SWNT films coated with carbonyldiimidazole-Tween20 (CDI-Tween20) surfactant demonstrated as a facile platform for fluorescence based protein chip. Highly selective protein bindings of biotin-BSA+SA...

A novel mechanism of SWNT nucleation is considered in oppose to an existing model. The latter model based on the formation of a hemispherical carbon bowl nucleus has no correct description within the thermodynamics and kinetics of the nucleation process. The new mechanism can explain the prevalent formation of [10,10] armchair nanotube on the base of the continuum graphene energetics.

We report measurements on ropes of single-walled carbon nanotubes (SWNT) in low-resistance contact to nonsuperconducting (normal) metallic pads, at low voltage and at temperatures down to 70 mK. In one sample, we find a 2 orders of magnitude resistance drop below 0.55 K, which is destroyed by a magnetic field of the order of 1 T, or by a dc current greater than 2.5 microA. These features strong...