Aqueous carbon nanohorn–pyrene–porphyrin nanoensembles: Controlling charge-transfer interactions

Pagona, Georgia; Fan, Jing; Maigné, Alan; Yudasaka, Masako; Iijima, Sumio; Tagmatarchis, Nikos

doi:10.1016/j.diamond.2006.11.071

Cited by 49 publications

(29 citation statements)

References 34 publications

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“…Recently, in this context, substantial progress has been made toward solubilization of CNHs. This has been achieved by covalent functionalization of the CNH skeleton [7,8] and highly strained cone-ends [9] as well as through supramolecular p-p stacking interactions [10] with pyrenes and porphyrins.…”

Section: Introductionmentioning

confidence: 99%

Photoinduced Electron Transfer on Aqueous Carbon Nanohorn–Pyrene–Tetrathiafulvalene Architectures

Pagona

Sandanayaka

Maigné

et al. 2007

Chemistry A European J

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Section: Introductionmentioning

confidence: 99%

Photoinduced Electron Transfer on Aqueous Carbon Nanohorn–Pyrene–Tetrathiafulvalene Architectures

Pagona

Sandanayaka

Maigné

et al. 2007

Chemistry A European J

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“…However, because of the fluorescence quenching of fluorescent molecules on o-SWNTs [20,21], the impact of o-SWNTs on the fluorescence of Rho123 has to be investigated. As shown in …”

Section: The Impact Of Cnts On the Fluorescence Of Rho123mentioning

confidence: 99%

“…Fluorescence spectrophotometer (FS) and flow cytometry [14,15] [16,17], which has been applied in bioanalysis [18] and clinical analysis [19] in the past decades. However, the quantitative determination of fluorescent compounds physically adsorbed on CNTs is still the problem due to the fluorescence quenching phenomenon of fluorophores on CNTs [20,21].…”

Section: Introductionmentioning

confidence: 99%

MEKC‐LIF analysis of rhodamine123 delivered by carbon nanotubes in K562 cells

et al. 2009

Electrophoresis

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Oxidized single-walled carbon nanotubes (o-SWNTs) were employed as the drug carriers to deliver the small molecules of Rhodamine123 (Rho123) into the K562 cells via physical adsorption. However, due to the fluorescence quenching of Rho123 on carbon nanotubes, the quantitative determination of Rho123 in cells is difficult. Based on the MEKC coupled with LIF detection, a quantitative approach was developed for the determination of Rho123 delivered into K562 cells by o-SWNTs. Where the adsorbed Rho123 on o-SWNTs could be desorbed by SDS in running buffer and be simultaneously separated with o-SWNTs due to the differences of their electrophoretic mobility by applying the electric potential at the both ends of capillary. Using this approach, the intracellular uptakes of Rho123 in multidrug-resistant and multidrug-sensitive leukemia cells were quantified, and the results showed that o-SWNTs could be used as the potential drug carriers to deliver small molecules into cells via the physical adsorption along with the circumventing of multidrug resistance of leukemia cells.

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“…[6] However, similar to CNTs, the insolubility of CNHs in all solvents has to be overcome before considering practical technological applications. Recently, in this context, substantial progress has been made towards solubilization of CNHs, based on the covalent functionalization of their skeleton [7] and highly strained cone-ends, [8] as well as by means of supramolecular p-p stacking interactions [9] with pyrenes and porphyrins. Nevertheless, the functionalization of carbon nanohorns with polymers has not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Grafting Living Polymers onto Carbon Nanohorns

Mountrichas

Pispas

Tagmatarchis

2007

Chemistry A European J

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In the present paper we describe a new way for the covalent functionalization of carbon nanohorns by means of anionic polymerization with the "grafting to" approach. Polyisoprene homopolymers, as well as polyisoprene-b-polystyrene block copolymers have been attached on the surface of carbon nanohorns. The functionalized carbon nanostructures have been fully characterized by means of complementary spectroscopic techniques, electron microscopy, thermogravimetric analysis, and light scattering.

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Aqueous carbon nanohorn–pyrene–porphyrin nanoensembles: Controlling charge-transfer interactions

Cited by 49 publications

References 34 publications

Photoinduced Electron Transfer on Aqueous Carbon Nanohorn–Pyrene–Tetrathiafulvalene Architectures

Photoinduced Electron Transfer on Aqueous Carbon Nanohorn–Pyrene–Tetrathiafulvalene Architectures

MEKC‐LIF analysis of rhodamine123 delivered by carbon nanotubes in K562 cells

Grafting Living Polymers onto Carbon Nanohorns

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