Nanohorns, carbon

Murakami T, Ajima K, Miyawaki J, Yudasaka M, Iijima S, Shiba K (2004) Drug-loaded carbon nanohorns adsorption and release of dexamethasone in vitro. Molecular Pharmacology 1 399 105. 

Nanocarbons other than CNTs and graphene often exhibit similar surface chemistry and can be hybridized in a similar fashion. For example, single-walled carbon nanohorns (SWCNHs) have been oxidized via heat treatment in air atmosphere followed by immersion in a solution containing H2PtCl6. The Pt ions adsorbed to the oxidized SWCNHs and were then reduced via addition of sodium citrate to form Pt NPs [150],... 

Liu, Y., et ah, Metal-assisted hydrogen storage on Pt-decorated single-walled carbon nanohorns. Carbon, 2012. 50(13) p. 4953-4964. 

Battiston, S. Minella, M. Gerbasi, R. Visentin, F. Guerriero, P. Leto, A. Pezzotti, G. Miorin, E. Fabrizio, M. Pagura, C., Growth of titanium dioxide nanopetals induced by single wall carbon nanohorns. Carbon 2010,48 2470-2477. 

Highly Ordered Fullerenes, Carbon Nanotubes, and Carbon Nanohorns... 

The disappointing results for H storage in highly ordered CNTs may be saved with the emergence of carbon nanohorns. 

Fig. 4.14 Carbon nanohorns with hydrogen condensed at the end of conical tip (a) agglomerate to form nanocarbon particles that exhibit rosette shape (b) TEM image credit http //www.phys-ics.siu.edu/migone/lab/carbon nanohoms.htm...

H. Tanaka, H. Kanoh, M. El-Merraoui, W.A. Steele, M. Yudasaka, S. Ijiima, K. Kaneko, Quantum effects on hydrogen adsorption in internal nanospaces of single-wall carbon nanohorns. J. Chem. Phys. B, 108(45) (2004) 17457-17465. 

F. Femandez-Alonso, EJ. Bermejo, C. Cabrillo, R.O. Loufty, V. Leon, M.L. Saboungi, Nature of the bound states of molecular hydrogen in carbon nanohorns. Phys. Rev. Lett., 98 (2007) 215503. 

Figure 29. Fiuman osteoblast-like MG 63 cells in cultures on material surfaces modified with carbon nanoparticles. A fullerene Cgo layers deposited on carbon fibre-reinforced carbon composites (CFRC), B fullerene C o layers deposited on microscopic glass coverslips, C terpolymer of polytetrafluoroethylene, polyvinyldifluoride and polypropylene, mixed with 4% of single-wall carbon nanohorns, D the same terpolymer with high crystalline electric arc multi-wall nanotubes, E diamond layer with hierarchically organized micro- and nanostmcture deposited on a Si substrate, F nanocrystalline diamond layer on a Si substrate. Standard control cell culture substrates were represented by a PS culture dish (G) and microscopic glass coverslip (FI). Immunofluorescence staining on day 2 (A) or 3 (B-Fl) after seeding, Olympus epifluorescence microscope IX 50, digital camera DP 70, obj. 20x, bar 100 pm (A, C, D, G,H)or 200 pm (B, E, F) [16].

The discovery of fullerenes in 1985 led to the era of nanomaterials.1 The three-dimensional geometry of these molecules as well as their unique properties distinguishes them from conventional molecules encountered in organic chemistry. Due to recent discoveries in this field, the horizons of this area have broadened to encompass various new molecules such as endohedral fullerenes, nanotubes, carbon nanohorns, and carbon nano-onions. This chapter discusses the electrochemical behavior of some of these carbon nanoparticles with special emphasis on endohedral fullerenes. Since a large number of fullerene derivatives have been prepared and their various electrochemical studies in different solvents and electrolytes have been reported, the electrochemistry of these derivatives is beyond the scope of this text.2 3 Among the other carbon nanoparticles, the electrochemistry of derivatives of carbon nanotubes has been reported. These studies have been highlighted in the final part of the chapter. 

New metallo-nanostructured materials of carbon nanohorns were recently prepared by the coordination of Cu(II)-2,2 6,2,-terpyridine (Cuntpy) with oxidized carbon nanohorns (CNHs-COOH) and the resulted CNHs-COO-Cuntpy metallo-nanocomplexes have shown efficient fluorescence quenching, suggesting that electron transfer occurs from the singlet excited state of Cuntpy to CNHs.76... 

NHA NHS NHSCnSH NIL NIR NLO NLS carbon nanohorn aggregate V- h ycl to x v su cc i n i m i de / yl 11 -mercaptoundecanoyl-A-hydroxysuccinimide ester nanoimprint lithography near infrared nonlinear optics nuclear localization sequence (peptide sequence for nuclear targeting)... 

H. Wang, M. Chhowalla, N. Sano, S. Jia, G.A.J. Amaratunga, Large-scale synthesis of single-walled carbon nanohorns by submerged arc. Nanotechnology, 15 (2004) 546-550. 

Yoshitake, T. et al.. Preparation of fine platinum catalyst supported on single-wall carbon nanohorns for fuel cell application, Physica B, 323, 124, 2002. 

Separation of adsorption isotherms of N2 in internal and interstitial nanopores of single-walled carbon nanohorn - A comparative study with experiment and simulation... 

N2 adsorption isotherms in internal and ineterstitial nanopores of single wall carbon nanohorn (SWNH) were calculated by GCMC simulation and is compared with experimental one. Fitting of the GCMC-simulated isotherm to experimental one in internal nanopores gave the average pore width w = 2.9 nm. The N2 adsorption isotherm in the interstitial nanopores of the bundled SWNH particles well coincided with the observed one. 

Figure 3.55. Carbon nanohorn substrates used for catalyst backing in NEC s passive DMFC design. (From Y. Kubo (2004). Micro fuel cells for portable electronics. In Proc. 15 World Hydrogen Energy Conference, Yokohama. Used with permission.)...

Other Carbon Nanostructures. Raman spectroscopy was used to characterise single-walled carbon nanohorns (SWCNH).285 Similar methods were... 

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