2004
DOI: 10.1021/ja040082h
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Electrophoretic Analysis and Purification of Fluorescent Single-Walled Carbon Nanotube Fragments

Abstract: Arc-synthesized single-walled carbon nanotubes have been purified through preparative electrophoresis in agarose gel and glass bead matrixes. Two major impurities were isolated: fluorescent carbon and short tubular carbon. Analysis of these two classes of impurities was done. The methods described may be readily extended to the separation of other water-soluble nanoparticles. The separated fluorescent carbon and short tubule carbon species promise to be interesting nanomaterials in their own right.

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Cited by 3,851 publications
(2,372 citation statements)
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“…The particles were called ''carbogenic'' because they were not of pure carbon composition like carbon nanotubes or carbon nanodiamond but proved to be oxygen-containing carbon dots. Fluorescent carbogenic NPs can be obtained by various methods such as laser ablation of graphite [4,5] or carbon powders [6], proton-beam irradiation of nanodiamonds [7,8], carboxylation of carbon nanotubes [9][10][11], electrooxidation of graphite [12], hydrothermal decomposition of ammonium citrate salts [13,14] or separating from candle soot [15].…”
Section: Introductionmentioning
confidence: 99%
“…The particles were called ''carbogenic'' because they were not of pure carbon composition like carbon nanotubes or carbon nanodiamond but proved to be oxygen-containing carbon dots. Fluorescent carbogenic NPs can be obtained by various methods such as laser ablation of graphite [4,5] or carbon powders [6], proton-beam irradiation of nanodiamonds [7,8], carboxylation of carbon nanotubes [9][10][11], electrooxidation of graphite [12], hydrothermal decomposition of ammonium citrate salts [13,14] or separating from candle soot [15].…”
Section: Introductionmentioning
confidence: 99%
“…A rolled single sheet graphene will form single walled CNTs, while multiple rolled graphene sheet will create multi-walled CNTs. Graphene quantum dots (GQDs) and nanoribbons are also explored considering their unique characteristics [14,15]. The discussed various forms of crystalline carbon in different dimensions (i.e., zero, one, two, and three dimensions) exhibit contrasting physical and chemical properties and are prominent materials for wide Figure 1.…”
Section: Introductionmentioning
confidence: 99%
“…16 CNDs have been mainly prepared by oxidative procedures for the treatment of various carbon sources, such as graphite, 17 candle soot, 18 and organic compounds. 19 Several synthetic approaches 20 were applied to tune the PL properties of CNDs by a post-treatment, such as chemical reduction, 21 organosilane-functionalization, 22 and electrochemical agitation.…”
Section: Introductionmentioning
confidence: 99%