Supramolecular two-dimensional peptidic adhesives for graphene oxide fiber functionalization

Autor: Muñoz, Edgar, Jurewicz, Izabela, Seyedin, Shayan, Tripathi, Manoj, Pearson, J. R., Cebolla, Vicente L., Razal, Joselito M., Dalton, Alan B., Garriga, Rosa
Přispěvatelé: Muñoz, Edgar, Jurewicz, Izabela, Seyedin, Shayan, Tripathi, Manoj, Pearson, J. R., Cebolla, Vicente L., Razal, Joselito M., Dalton, Alan B., Garriga, Rosa, Muñoz, Edgar [0000-0001-9309-2394], Jurewicz, Izabela [0000-0003-0237-8384], Seyedin, Shayan [0000-0001-7322-0387], Tripathi, Manoj [0000-0002-8052-428X], Pearson, J. R. [0000-0002-2267-0844], Cebolla, Vicente L. [0000-0002-9786-9217], Razal, Joselito M. [0000-0002-9758-3702], Dalton, Alan B. [0000-0001-8043-1377], Garriga, Rosa [0000-0003-2607-7834]
Rok vydání: 2020
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
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Popis: Work presented at the nano Portugal 2020 Online Conference (nanoPT2020), Nanoscience and Nanotechnology International Conference, 23th - 24th september 2020.
Amino-terminated oligoglycines non-covalently self-assemble, through cooperative hydrogen bonding formation, into biocompatible rigid 2D nanostructures called tectomers. Tectomers effectively coat carboxylated multi-walled carbon nanotubes (MWCNT-COOH) and strongly interact with graphene oxide (GO). Electrostatic interactions and hydrogen bonding formation accounts for the strong interfacial interaction of tectomers with MWCNT-COOH and GO, respectively. Because of the high affinity of tectomers to GO, tectomers have been used to coat wet-spun GO fibers. We here show that, due to their versatile surface chemistry, tectomers act as supramolecular adhesives for nanomaterial and molecule immobilization on the GO fiber surface. Tectomer-coated GO fibers can then be subsequently decorated with a variety of carbon nanomaterials (carbon nanotubes, carbon nanohorns, carbon nanocones, and highly fluorescent nanodiamonds), metal (gold, platinum, iron) nanoparticles, acrylate-based polymer nanoparticles, fluorophores and drugs. The resulting ultrathin coatings exhibit remarkable water resistant properties. We show that this tectomer-based “double-sided sticky tape” fiber functionalization strategy can be extended to other fibers and fabrics, such as polyurethane/PEDOT:PSS, poly(methyl methacrylate) and polyester, making it very attractive for a variety of technological and smart textile applications.
Databáze: OpenAIRE
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