Orientation Control of Molecularly Functionalized Surfaces Applied to the Simultaneous Alignment and Sorting of Carbon Nanotubes

Selmani, Serxho; Schipper, Derek J.

doi:10.1002/ange.201712779

Cited by 13 publications

(5 citation statements)

References 40 publications

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“…Alignments of molecules and materials are crucial in certain kinds of advanced applications and can sometimes be induced by self-assembly on solid surfaces. Selmani and Schipper demonstrated a nice example of alignment relay technique, which can transfer information of alignments from liquid crystals to molecules and materials [235]. The proposed technique actually accomplished alignment and sorting of carbon nanotubes.…”

Section: Thin Filmsmentioning

confidence: 99%

Self-assembly as a key player for materials nanoarchitectonics

Ariga

Nishikawa

Mori

et al. 2019

Science and Technology of Advanced Materials

364

255

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The development of science and technology of advanced materials using nanoscale units can be conducted by a novel concept involving combination of nanotechnology methodology with various research disciplines, especially supramolecular chemistry. The novel concept is called 'nanoarchitectonics' where self-assembly processes are crucial in many cases involving a wide range of component materials. This review of self-assembly processes reexamines recent progress in materials nanoarchitectonics. It is composed of three main sections: (1) the first short section describes typical examples of self-assembly research to outline the matters discussed in this review; (2) the second section summarizes self-assemblies at interfaces from general viewpoints; and (3) the final section is focused on self-assembly processes at interfaces. The examples presented demonstrate the strikingly wide range of possibilities and future potential of self-assembly processes and their important contribution to materials nanoarchitectonics. The research examples described in this review cover variously structured objects including molecular machines, molecular receptors, molecular pliers, molecular rotors, nanoparticles, nanosheets, nanotubes, nanowires, nanoflakes, nanocubes, nanodisks, nanoring, block copolymers, hyperbranched polymers, supramolecular polymers, supramolecular gels, liquid crystals, Langmuir monolayers, Langmuir-Blodgett films, self-assembled monolayers, thin films, layer-by-layer structures, breath figure motif structures, two-dimensional molecular patterns, fullerene crystals, metal-organic frameworks, coordination polymers, coordination capsules, porous carbon spheres, mesoporous materials, polynuclear catalysts, DNA origamis, transmembrane channels, peptide conjugates, and vesicles, as well as functional materials for sensing, surface-enhanced Raman spectroscopy, photovoltaics, charge transport, excitation energy transfer, lightharvesting, photocatalysts, field effect transistors, logic gates, organic semiconductors, thin-film-based devices, drug delivery, cell culture, supramolecular differentiation, molecular recognition, molecular tuning, and hand-operating (hand-operated) nanotechnology.

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Section: Thin Filmsmentioning

confidence: 99%

Self-assembly as a key player for materials nanoarchitectonics

Ariga

Nishikawa

Mori

et al. 2019

Science and Technology of Advanced Materials

364

255

View full text Add to dashboard Cite

show abstract

“…These changes can produce large conductance changes that give rise to drift and degraded performance in chemiresistive sensors. Polymer wrapping or surface anchored molecular clips produces stable noncovalent functionalized SWCNTs [26][27][28][29][30][31][32][33][34] and has also been widely explored to separate and purify [35][36][37][38][39][40][41][42][43][44][45][46][47] or orient 48,49 these materials. Conjugated polymers with selectors attached can provide selectivity for the detection of specific analytes and even resolve structural isomers of xylenes.…”

mentioning

confidence: 99%

Pentiptycene Polymer/Single-Walled Carbon Nanotube Complexes: Applications in Benzene, Toluene, and o-Xylene Detection

Luo

Lin

et al. 2020

ACS Nano

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We report the dispersion of single-walled carbon nanotubes (SWCNTs) using pentiptycene polymers and their use in chemiresistance-based and QCM-D sensors. Poly(p-phenylene ethynylene)s (PPEs) incorporating pentiptycene moieties present a concave surface that promotes π-π interactions and van der Waals interactions with SWCNT. In contrast to more common polymer-dispersing mechanisms that involve the wrapping of polymers around the SWCNTs, we conclude that the H-shape of pentiptycene groups and the linear rigid-rod structure creates a slot for nanotube binding. UV-Vis-NIR, Raman, fluorescence spectra and TEM images of polymer/SWCNTs support this dispersion model which shows size selectivity to SWCNTs with diameters of 0.8−0.9 nm. Steric bulk on the channels is problematic and tert-butylated pentiptycenes do not form stable dispersions with SWCNTs. This result, along with the diameter preference supports that model that the SWCNTs are bound to the concave clefts of the pentiptycenes. The binding model suggests that the polymer/SWCNTs complex create galleries and we have demonstrated the binding of benzene, toluene and o-xylene (BTX) vapors as the basis for a robust, sensitive and selective sensing platform for BTX detection. The utility of our sensors is demonstrated by the detection of benzene at the OSHA short-term exposure limit of 5 ppm in air.

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“…Carbon Nanotube Alignment Methods DOI: http://dx.doi.org/10.5772/intechopen.108236 passed from liquid crystals (LCs) to small molecules that can interact with CNTs selectively. The CNTs are deposited on the aligned molecules and self-aligned following the molecules' pattern, as shown in Figure 4b [34]. Mark J. MacLachlan reported CNTs alignment by ART on an ITO surface functionalized with Iptycene molecules [35].…”

Section: Alignment By Chemical Forcesmentioning

confidence: 99%

“…(a) Evaporation-driven Dip-casting[33]. (b) Alignment relay technique[34]. (c) Electrostatic repulsion Dip-coating[36].…”

mentioning

confidence: 99%

Carbon Nanotube Alignment Methods

Abdulhameed¹

2023

Carbon Nanotubes - Recent Advances, New Perspectives and Potential Applications

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The outstanding properties of carbon nanotubes (CNTs) exist in their nanoscale form. The CNTs must be maintained aligned in the device to preserve these properties in the macroscale and bulk form. Recently, many studies addressed the alignment of CNTs at different scales for different applications. For example, CNTs are aligned vertically simultaneously as they grow on a substrate. Pre-synthesized CNTs can be aligned horizontally on a large scale under the influence of external forces such as electric and magnetic forces. This chapter reviews the latest techniques and methods regarding the horizontal alignment of CNTs. The alignment methods are classified based on the force used to achieve the alignment. The chapter concludes by discussing each method\'s advantages, disadvantages, and potential applications.

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Orientation Control of Molecularly Functionalized Surfaces Applied to the Simultaneous Alignment and Sorting of Carbon Nanotubes

Cited by 13 publications

References 40 publications

Self-assembly as a key player for materials nanoarchitectonics

Self-assembly as a key player for materials nanoarchitectonics

Pentiptycene Polymer/Single-Walled Carbon Nanotube Complexes: Applications in Benzene, Toluene, and o-Xylene Detection

Carbon Nanotube Alignment Methods

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