C60 encapsulation inside single-walled carbon nanotubes using alkali–fullerene plasma method

Jeong, Goo‐Hwan; Hirata, Takamichi; Hatakeyama, Rikizo; Tohji, Kazuyuki; Motomiya, Kenichi

doi:10.1016/s0008-6223(02)00107-0

Cited by 42 publications

(24 citation statements)

References 41 publications

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“…The distance between the anode and cathode electrodes is 1000 µm and the volume of the micro electrolyte plasma is 5 cm 3 . In the case that electric fields are applied to the electrode coated with SWNTs, SWNTs are considered to stand on the electrode along the electric fields and the orientation of SWNTs is expected to be perpendicular to the electrode [9,16]. This phenomenon is convenient for the effective encapsulation of DNA inside SWNTs similarly to the case of the gas plasmas.…”

Section: Methodsmentioning

confidence: 99%

“…On the contrary, the inside modification, i.e., encapsulation of other atoms and/or molecules, has the feature of airstability, because the functional materials inserted inside SWNTs are isolated from the air by the wall of SWNTs. According to our previous experiments, plasmas play an important role in the encapsulation of the functional materials, such as alkali metal [6], and C 60 [9]. Especially, sheath electric fields generated in front of biased substrates in plasmas induce the acceleration of the ions of functional materials and the irradiation of the ions to the SWNTs on the substrates.…”

Section: Introductionmentioning

confidence: 99%

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DNA Encapsulation Inside Carbon Nanotubes Using Micro Electrolyte Plasmas

Kaneko¹,

Okada

Hatakeyama

2007

Contrib. Plasma Phys.

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DNA encapsulated carbon nanotubes are formed using a plasma ion irradiation method in electrolyte solutions with DNA, which can be regarded as electrolyte plasmas from the view point that the electrolyte solutions consist of positive and negative ions, and neutral particles in the same way as gas phase plasmas. When both the direct current (DC) and radio frequency (RF) electric fields are applied to the DNA electrolyte plasmas through micro gap electrodes, DNA which is negatively charged in solutions tends to change its conformation from random-coil to stretched-form by the RF field and be irradiated to the carbon-nanotube coated anodeelectrode by the DC field. Based on Raman spectroscopy and transmission electron microscopy analyses, DNA is confirmed to be inserted into the carbon nanotubes. The creation of DNA encapsulated carbon nanotubes using the micro electrolyte plasmas supports the validity of the plasma concept extended from gas to liquid phase, which could pioneer novel applications in such nanoelectronics and biomedical fields.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

DNA Encapsulation Inside Carbon Nanotubes Using Micro Electrolyte Plasmas

Kaneko¹,

Okada

Hatakeyama

2007

Contrib. Plasma Phys.

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“…This method was successfully applied for the filling of nanotubes with metallic cesium [332][333][334], iodine [334], fullerene C 60 [334,335] and simultaneous encapsulation of several substances [334]. The high filling degrees of nanotube channels (50% for fullerene C 60 )…”

Section: Filling the Swcnts Using Plasmamentioning

confidence: 99%

Advances in tailoring the electronic properties of single-walled carbon nanotubes

Kharlamova

2016

Progress in Materials Science

102

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“…-C 60 -plasma, respectively. C 60 molecules (Jeong et al 2001(Jeong et al , 2002 and Cs atoms (Jeong et al 2003a, b;Kim et al 2007) were linearly and spirally encapsulated in SWNTs, respectively (C 60-@SWNTs, Cs@SWNTs). When C 60 -was irradiated onto SWNTs for 30 min with a positive substrate bias and Cs ?…”

Section: Fucntionalization Of Cnts Via Plasma Processesmentioning

confidence: 99%

Nanocarbon materials fabricated using plasmas

Hatakeyama

2017

Rev. Mod. Plasma Phys.

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Since the discovery of fullerenes more than three decades ago, new kinds of nanoscale materials of carbon allotropes called ''nanocarbons'' have so far been discovered or synthesized at successive intervals as cases such as carbon nanotubes, carbon nanohorns, graphene, carbon nanowalls, and a carbon nanobelt, while nanodiamonds were actually discovered before then. Their attractively excellent mechanical, physical, and chemical properties have driven researchers to continuously create one of the hottest frontiers in materials science and technology. While plasma states have often been involved in their discovery, on the other hand, plasma-based approaches to this exciting field originally hold promising and enormous potentials for advancing and expanding industrial/biomedical applications of nanocarbons of great diversity. This article provides an extensive overview on plasma-fabricated nanocarbon materials, where the term ''fabrication'' is defined as synthesis, functionalization, and assembly of devices to cover a wide range of issues associated with the step-by-step plasma processes. Specific attention has been paid to the comparative examination between plasma-based and non-plasma methods for fabricating the nanocarobons with an emphasis on the advantages of plasma processing, such as low-temperature/large-scale fabrication and diversitycarrying structure controllability. The review ends with current challenges and prospects including a ripple effect of the nanocarbon studies on the development of related novel nanomaterials such as transition metal dichalcogenides. It contains not only the latest progress in the field for cutting-edge scientists and engineers, but also the introductory guidance to non-specialists such as lower-class graduate students.& Rikizo Hatakeyama

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C60 encapsulation inside single-walled carbon nanotubes using alkali–fullerene plasma method

Cited by 42 publications

References 41 publications

DNA Encapsulation Inside Carbon Nanotubes Using Micro Electrolyte Plasmas

DNA Encapsulation Inside Carbon Nanotubes Using Micro Electrolyte Plasmas

Advances in tailoring the electronic properties of single-walled carbon nanotubes

Nanocarbon materials fabricated using plasmas

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