Discotic Ionic Liquid Crystals of Triphenylene as Dispersants for Orienting Single‐Walled Carbon Nanotubes

Lee, Jeongho Jay; Yamaguchi, Akihisa; Alam, Md. Akhtarul; Yamamoto, Yohei; Fukushima, Takanori; Kato, Kenichi; Takata, Masaki; Fujita, Norifumi; Aida, Takuzo

doi:10.1002/anie.201203284

Cited by 82 publications

(40 citation statements)

References 35 publications

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“…[13] Two common approaches applied to this dispersion problem include covalent modification of SWCNT surfaces and noncovalent adsorption of functional small molecules and polymers. [14] Noncovalent modification of SWCNTs is particularly attractive because the strategy preserves the intrinsic properties of SWCNTs without disruption to the electronic and optical responses of the system. [15] It has been demonstrated that SWCNTs interact with conjugated species, such as pyrene derivates, [16] phthalocyanines, [17] porphyrins, [18] phenazine, [19] and thionine types of dyes, [20] based on π-π stacking.…”

mentioning

confidence: 99%

Supramolecularly Knitted Tethered Oligopeptide/Single‐Walled Carbon Nanotube Organogels

Zou

Fan

et al. 2014

Chemistry A European J

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A facile polymerization of an allyl-functional N-carboxyanhydride (NCA) monomer is utilized to construct an A-B-A type triblock structure containing β-sheet-rich oligomeric peptide segments tethered by a poly(ethylene oxide) chain, which are capable of dispersing and gelating single-walled carbon nanotubes (SWCNTs) noncovalently in organic solvents, resulting in significant enhancement of the mechanical properties of polypeptide-based organogels.

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confidence: 99%

Supramolecularly Knitted Tethered Oligopeptide/Single‐Walled Carbon Nanotube Organogels

Zou

Fan

et al. 2014

Chemistry A European J

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“…Moreover, CNTs mixed with ILC containing ionized groups, which have excellent orientation, resulted in a highly efficient dispersion which is 1000 folds compared to the case of absence of ILC. This is attributed to the abundance of π‐electrons on CNTs surfaces which have great affinity for the positively charged ILC . This compact conducting surface of (CNTs ‐ ILC) with large surface area available for the reaction was more suitable for the assembly of crown ethers than CNTs.…”

Section: Resultsmentioning

confidence: 99%

“…ILCs possess the properties of ILs namely high ionic conductivity, chemical and thermal stability and intrinsic catalytic ability and that of liquid crystals . Also, the abundance of negative π‐electrons on CNTs surfaces had a great affinity for the positively charged ILCs . In previous work, we demonstrated that different ionic liquid crystals can be used as excellent active modifiers in the determination of several organic compounds .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Neurotransmitters at Crown Ether Modified Carbon Nanotube Composite: Application for Sub‐nano‐sensing of Serotonin in Human Serum

2018

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We propose an electrochemical sensor based on applying two successive thin layers from a mixture of multiwalled carbon nanotubes‐ionic liquid crystal and crown ether at glassy carbon electrode surface (GC/(CNTs‐ILC)/Crown). The sensor was used for sensitive determination of neurotransmitters based on effective synergism between its components. The compact conducting surface of (CNTs‐ILC) with large surface area allowed the assembling of stable host‐guest inclusion complexes between crown ethers and neurotransmitters. The GC/(CNTs‐ILC)/Crown exhibited excellent electro‐catalytic activity toward the determination of serotonin (ST) in a wide linear dynamic range: 0.005 μmol L−1 to 100 μmol L−1. In the concentration range 0.005 μmol L−1 to 1 μmol L−1, the detection limit is 2.03×10−10 mol L−1 and quantification limit is 6.78×10−10 mol L−1 with correlation coefficient 0.999. The sensor was successfully applied for ST detection in human serum samples with satisfied recovery results. The sensor showed excellent analytical performance for the determination of ST in terms of low detection limit, good sensitivity and reproducibility. Furthermore excellent anti‐interference ability and simultaneous determination of ST in presence of other compounds as ascorbic acid, dopamine and antidepressant drug were achieved.

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“…Examples of applications of ILCs are anisotropic tribology [ 146 ] and ion conductivity to be used in molecular electronics (solar cells, optoelectronic devices, etc .) [ 35 , 37 , 38 , 147 , 148 ], in directed synthesis approaches [ 149 ], including controlled nanoparticle synthesis, [ 150 , 151 ], alignment [ 152 ] or deposition [ 153 ], in ionic self-assembly [ 154 , 155 ] that builds complex structures from simple charged organic species and possibly in bio-catalysis [ 156 ] or sensing applications [ 25 , 98 ]. The near future will demonstrate which roles ILCs can play.…”

Section: Discussionmentioning

confidence: 99%

Key Developments in Ionic Liquid Crystals

Fernandez

Kouwer²

2016

IJMS

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Ionic liquid crystals are materials that combine the classes of liquid crystals and ionic liquids. The first one is based on the multi-billion-dollar flat panel display industry, whilst the latter quickly developed in the past decades into a family of highly-tunable non-volatile solvents. The combination yields materials with a unique set of properties, but also with many challenges ahead. In this review, we provide an overview of the key concepts in ionic liquid crystals, particularly from a molecular perspective. What are the important molecular parameters that determine the phase behavior? How should they be introduced into the molecules? Finally, which other tools does one have to realize specific properties in the material?

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Discotic Ionic Liquid Crystals of Triphenylene as Dispersants for Orienting Single‐Walled Carbon Nanotubes

Cited by 82 publications

References 35 publications

Supramolecularly Knitted Tethered Oligopeptide/Single‐Walled Carbon Nanotube Organogels

Supramolecularly Knitted Tethered Oligopeptide/Single‐Walled Carbon Nanotube Organogels

Electrochemical Determination of Neurotransmitters at Crown Ether Modified Carbon Nanotube Composite: Application for Sub‐nano‐sensing of Serotonin in Human Serum

Key Developments in Ionic Liquid Crystals

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