Carbon nanotubes loaded with

Beside the stable Gdm complexes that we discussed throughout this chapter, other Gdm-based systems have been also investigated as potential contrast agents for MRI. Here, we will shortly review data on gadofullerenes and carbon nanotubes loaded with Gdm. 

J. Wang, G. Liu, M.R. Jan, and Q. Zhu, Electrochemical detection of DNA hybridization based on carbon-nanotubes loaded with CdS tags. Electrochem. Commun. 5,1000-1004 (2003). 

Li Y, Qi H, Fang F, Zhang C (2007) Ultrasensitive electrogenerated chemiluminescence detection of DNA hybridization using carbon-nanotubes loaded with tris(2,2 -bipyridyl) ruthenium derivative tags. Talanta 72(5) 1704-1709... 

Korneva G, Ye H, Gc otsi Y, Halverson D, Friedman G, Bradley J-C, Kornev KG. Carbon nanotubes loaded with magnetic particles. Nano Lett 2005 5 879-84. 

Selective heating has been used in the synthesis and purification of carbon nanotubes (CNT). For example, Lee [31a] described the preparation of carbon nanotubes in a microwave oven (Fig. 5.10). The support material (carbon black, a microwave absorber, or Si02, a microwave insulator) was placed in a quartz reactor with a flow of acetylene (C2H2) gas without a catalyst and was irradiated by microwaves. Identical experiments were repeated with carbon black loaded with Co, Ni, and Fe catalysts. 

Acrylated epoxidised soybean oil (AESO)/impure MWCNT (MWCNT and carbon soot) nanocomposite exhibits improved mechanical properties with the tensile modulus increased by 30% at 0.28 wt% CNT loading. However higher multi-walled carbon nanotube loadings resulted in significant aggregation during polymerisation. AESO is therefore believed to act as a solubilising surfactant in this system. ... 

Layer-by-layer (LBL) assembly technique has been proven as a well-established approach to build composites or function-specific multilayer assemblies. Mamedov et al. fabricated isotropic polymer/SWNT composites by LBL deposition method to preserve SWNT dispersion [98]. Zhang et al. prepared PVA/poly(vinyl pyrolidone)/SDS (sodium dodecyl sulfate)/SWNT composite films by LBL technique with good nanotube dispersion and load transfer from polymer matrix to the carbon nanotubes [99]. With the aid of a surfactant, super-tough PVA/SWNT fibers were also fabricated by LBL method with SWNT loading as high as 60 wt% [100]. 

Du G, Zhong C, Zhang P, Guo Z, Chen Z, Liu H (2010) Tin dioxide/carbon nanotube composites with high uniform Sn02 loading as anode materials for lithium ion batteries. Electrochim Acta 55 2582-2586... 

Figure 1. Cyclic voltammograms at 2mV/s in 2 mol.L 1 KNOs medium for two-electrode capacitors based on a-Mn02 nH20 loaded with 15 wt% of carbon black or carbon nanotubes.

Figure 3. Cyclic voltammograms in three-electrode cells for activated carbon andfor a-MnC>2 nH20 loaded with 15wt% of carbon nanotubes in 2 molL 1 KNO3 medium using Pt as...

Singh et al. (2006) also used cycloaddition to prepare carbon nanotubes containing indium labeled diethylenetriamine pentaacetic acid (DTPA) derivatives (Figure 15.17). In the initial modification, a SWNT was derivatized to contain a primary amine at the end of a short PEG spacer. The resultant water-soluble nanotube then was reacted with DTPA to create a metal chelating group at the end of the chain. Subsequent loading of the chelate with mIn created a radionuclide-SWNT complex for in vivo biodistribution studies. 

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