Reversible dispersion and release of carbon nanotubes via cooperative clamping interactions with hydrogen-bonded nanorings

Chemical Science
Raquel ChamorroDavid González-Rodríguez

Abstract

Due to their outstanding electronic and mechanical properties, single-walled carbon nanotubes (SWCNTs) are promising nanomaterials for the future generation of optoelectronic devices and composites. However, their scarce solubility limits their application in many technologies that demand solution-processing of high-purity SWCNT samples. Although some non-covalent functionalization approaches have demonstrated their utility in extracting SWCNTs into different media, many of them produce short-lived dispersions or ultimately suffer from contamination by the dispersing agent. Here, we introduce an unprecedented strategy that relies on a cooperative clamping process. When mixing (6,5)SWCNTs with a dinucleoside monomer that is able to self-assemble in nanorings via Watson-Crick base-pairing, a synergistic relationship is established. On one hand, the H-bonded rings are able to associate intimately with SWCNTs by embracing the tube sidewalls, which allows for an efficient SWCNT debundling and for the production of long-lasting SWCNT dispersions of high optical quality along a broad concentration range. On the other, nanoring stability is enhanced in the presence of SWCNTs, which are suitable guests for the ring cavity and contribute...Continue Reading

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Citations

Jun 11, 2019·Chemical Communications : Chem Comm·F AparicioD González-Rodríguez
Aug 17, 2019·Chemical Society Reviews·Sofía Mena-Hernando, Emilio M Pérez
Dec 20, 2019·Chemical Science·Mingyang JiJon R Parquette
Apr 8, 2020·ChemistryOpen·Anselmo Del PradoYi-Lin Wu
Jan 17, 2020·ChemPlusChem·Luka ĐorđevićDavide Bonifazi
Dec 29, 2020·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·David Serrano-MolinaDavid González-Rodríguez
Jun 30, 2021·ChemPlusChem·Violeta Vázquez-GonzálezDavid González-Rodríguez
Sep 12, 2019·Journal of the American Chemical Society·Violeta Vázquez-GonzálezDavid González-Rodríguez
Nov 27, 2021·Journal of the American Chemical Society·Sara Moreno-Da SilvaEnrique Burzurí

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Methods Mentioned

BETA
optical spectroscopy
AFM
atomic force microscopy
transmission electron microscopy
fluorescence spectroscopy

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