A new polythiophene-driven coating method on an inorganic INT/IF-WS<sub>2</sub> nanomaterial surface

Raichman, Daniel; Binyamini, R. Ben-Shabat; Lellouche, Jean‐Paul

doi:10.1039/c5ra21370c

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…Since the discovery of polyacetylene by Heeger, MacDairmid, and Sherikawa in 1976, a new and emerging class of materials, π-conjugated conducting organic polymers, has intrigued scientists with their unique physical and chemical properties. Given the π-conjugation arising from the alternating single and double carbon–carbon bonds within the polymer backbone, the π-electrons are effectively delocalized along the polymer chain, leading to one unpaired π-electron per carbon atom − and allowing for charge transport along the polymer chain, and as a consequence, they display conducting or semiconducting behavior. − As such, there is great interest toward their application in electronic and optical semiconducting devices ,− where the electronic properties of such polymers can be engineered easily either through doping or chemical modification. ,− …”

Section: Introductionmentioning

confidence: 99%

Polythiophene: From Fundamental Perspectives to Applications

et al. 2017

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The field of organic electronics has been heavily impacted by the discovery and development of π-conjugated conducting polymers. These polymers show great potential for integration into future optical and electronic devices due to their capacity to transition between semiconducting and conducting states as well as the ability to alter mechanical properties by controlled doping, chemical modification, and stacking or creating composites with other materials. Among π-conjugated polymers, polythiophene and its derivatives has been one of the most extensively studied and is widely investigated computationally and experimentally for use in electronic devices such as light-emitting diodes, water purification devices, hydrogen storage, and biosensors. Various theoretical modeling studies of polythiophene ranging from an oligothiophene approach to infinite chain lengths (periodic boundary conditions) have been undertaken to study a variety of electronic and structural properties of these polymers. In this review, we discuss the recent advances in the understanding of pristine polythiophene and its derivatives from fundamental perspectives to device applications.

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Section: Introductionmentioning

confidence: 99%

Polythiophene: From Fundamental Perspectives to Applications

et al. 2017

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“…These strategies rely on the interaction of the lone pairs of the outer sulfur atoms with chelating transition metal atoms, like nickel with ligating trichloro acetic acid . In an alternative approach, a two-step coating method was developed utilizing polythiophene derivatives using a Vilsmeier–Haack-like type of chemical reaction . These functionalization strategies produce water-soluble INT-WS 2 , prompting research into medical applications, like drug delivery and targeted therapy.…”

Section: Applicationsmentioning

confidence: 99%

“…123 In an alternative approach, a two-step coating method was developed utilizing polythiophene derivatives using a Vilsmeier−Haack-like type of chemical reaction. 124 These functionalization strategies produce water-soluble INT-WS 2 , prompting research into medical applications, like drug delivery and targeted therapy. This short survey demonstrates the remarkable potential of inorganic nanotubes and fullerene-like nanoparticles for myriad of applications and in variety of fields, including structural elements, automotive and heavy machine industries as well as finer applications in sportwear, medical technology, electronics for sensors, and more.…”

Section: Applicationsmentioning

confidence: 99%

Inorganic Nanotubes and Fullerene-like Nanoparticles at the Crossroads between Solid-State Chemistry and Nanotechnology

2017

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Inorganic nanotubes (NTs) and fullerene-like nanoparticles (NPs) of WS were discovered some 25 years ago and are produced now on a commercial scale for various applications. This Perspective provides a brief description of recent progress in this scientific discipline. The conceptual evolution leading to the discovery of these NTs and NPs is briefly discussed. Subsequently, recent progress in the synthesis of such NPs from a variety of inorganic compounds with layered (2D) structure is described. In particular, we discuss the synthesis of NTs from chalcogenide- and oxide-based ternary misfit layered compounds, as well as their structure and different growth mechanisms. Next we deliberate on the mechanical, optical, electrical, and electromechanical properties, which delineate them from their bulk counterparts and also from their graphene-like analogues. Here, different experiments with individual NTs coupled with first-principles and molecular dynamics calculations demonstrate the unique physical nature of these quasi-1D nanostructures. Finally, the various applications of the fullerene-like NPs of WS and NTs formed therefrom are deliberated. Foremost among the possibilities are their extensive uses as superior solid lubricants. Combined with their nontoxicity and their facile dispersion, these NTs, with an ultimate strength of about 20 GPa, are likely to find numerous applications in reinforcing polymers, adhesives, textiles, medical devices, metallic alloys, and even concrete. Other potential applications in energy-harvesting and catalysis are discussed in brief.

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“…Raichman et al used a Vilsmeier-Haack reagent that covalently bonds to the sulfur atoms to obtain a polycarboxylated coating 12 . Based on this work, WS 2 -NTs were coated by a polythiophene shell using 2,2′-bisthiophene-4-carboxaldehyde 13 or 3-thiopheneethanol linkers, which were covalently attached to the carboxylic groups 14 . Alternatively, a humin-like coating may be applied, which is based on Lewis acid-activated thioglycosylation chemistry that presents conformal and controlled thickness 15 .…”

Section: Introductionmentioning

confidence: 99%

Innovative functional polymerization of pyrrole-N-propionic acid onto WS2 nanotubes using cerium-doped maghemite nanoparticles for photothermal therapy

Levin

Lampel

Savyon

et al. 2021

Sci Rep

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Tungsten disulfide nanotubes (WS2-NTs) were found to be very active for photothermal therapy. However, their lack of stability in aqueous solutions inhibits their use in many applications, especially in biomedicine. Few attempts were made to chemically functionalize the surface of the NTs to improve their dispersability. Here, we present a new polymerization method using cerium-doped maghemite nanoparticles (CM-NPs) as magnetic nanosized linkers between the WS2-NT surface and pyrrole-N-propionic acid monomers, which allow in situ polymerization onto the composite surface. This unique composite is magnetic, and contains two active entities for photothermal therapy—WS2 and the polypyrrole. The photothermal activity of the composite was tested at a wavelength of 808 nm, and significant thermal activity was observed. Moreover, the polycarboxylated polymeric coating of the NTs enables effective linkage of additional molecules or drugs via covalent bonding. In addition, a new method was established for large-scale synthesis of CM-NPs and WS2-NT-CM composites.

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A new polythiophene-driven coating method on an inorganic INT/IF-WS₂ nanomaterial surface

Abstract: Inorganic nanotubes and fullerene nanoparticles of tungsten disulfide (INTs-WS2 and IFs-WS2, respectively) are practically inert, hindering their usefulness in both research and commercial applications.

Cited by 5 publications

References 37 publications

Polythiophene: From Fundamental Perspectives to Applications

Polythiophene: From Fundamental Perspectives to Applications

Inorganic Nanotubes and Fullerene-like Nanoparticles at the Crossroads between Solid-State Chemistry and Nanotechnology

Innovative functional polymerization of pyrrole-N-propionic acid onto WS2 nanotubes using cerium-doped maghemite nanoparticles for photothermal therapy

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A new polythiophene-driven coating method on an inorganic INT/IF-WS2 nanomaterial surface

Abstract: Inorganic nanotubes and fullerene nanoparticles of tungsten disulfide (INTs-WS2 and IFs-WS2, respectively) are practically inert, hindering their usefulness in both research and commercial applications.

Cited by 5 publications

References 37 publications

Polythiophene: From Fundamental Perspectives to Applications

Polythiophene: From Fundamental Perspectives to Applications

Inorganic Nanotubes and Fullerene-like Nanoparticles at the Crossroads between Solid-State Chemistry and Nanotechnology

Innovative functional polymerization of pyrrole-N-propionic acid onto WS2 nanotubes using cerium-doped maghemite nanoparticles for photothermal therapy

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A new polythiophene-driven coating method on an inorganic INT/IF-WS₂ nanomaterial surface