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Multifunctional, Biocompatible and pH-Responsive Carbon Nanotube- and Graphene Oxide/Tectomer Hybrid Composites and Coatings

Garriga, R, Jurewicz, Izabela, Seyedin, S, Bardi, Niki, Totti, Styliani, Matta‐ Domjan, B, Velliou, Eirini, Alkhorayef, Mohammed, Cebolla, VL, Razal, JM , Dalton, Alan and Muñoz, E (2017) Multifunctional, Biocompatible and pH-Responsive Carbon Nanotube- and Graphene Oxide/Tectomer Hybrid Composites and Coatings Nanoscale, 9. pp. 7791-7804.

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Abstract

Here we present a route for non‐covalent functionalization of carboxylated multi‐wall carbon nanotubes and graphene oxide with novel two‐dimensional peptide assemblies. We show that self‐assembled amino‐terminated biantennary and tetraantennary oligoglycine peptides (referred to as tectomers) effectively coat carboxylated multi‐walled carbon nanotubes and also strongly interact with graphene oxide due to electrostatic interactions and hydrogen bonding as the driving force, respectively. The resulting hybrids can be made into free‐standing conducting composites or applied in the form of thin, pH‐switchable bioadhesive coatings onto graphene oxide fibers. Monitoring of cell viability of pancreatic cell lines, seeded on those CNT hybrids, show that they can be used as two‐ and three‐dimensional scaffolds to tissue engineer tumour models for studying ex vivo the tumour development and response to treatment. This highly versatile method in producing pH‐responsive hybrids and coatings offers an attractive platform for a variety of biomedical applications and for the development of functional materials such as smart textiles, sensors and bioelectronic devices.

Item Type: Article
Subjects : Chemical & Process Engineering
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Garriga, RUNSPECIFIEDUNSPECIFIED
Jurewicz, IzabelaIzabela.Jurewicz@surrey.ac.ukUNSPECIFIED
Seyedin, SUNSPECIFIEDUNSPECIFIED
Bardi, Nikin.bardi@surrey.ac.ukUNSPECIFIED
Totti, Stylianis.totti@surrey.ac.ukUNSPECIFIED
Matta‐ Domjan, BUNSPECIFIEDUNSPECIFIED
Velliou, Eirinie.velliou@surrey.ac.ukUNSPECIFIED
Alkhorayef, Mohammedm.alkhorayef@surrey.ac.ukUNSPECIFIED
Cebolla, VLUNSPECIFIEDUNSPECIFIED
Razal, JMUNSPECIFIEDUNSPECIFIED
Dalton, AlanA.Dalton@surrey.ac.ukUNSPECIFIED
Muñoz, EUNSPECIFIEDUNSPECIFIED
Date : 3 February 2017
Identification Number : 10.1039/C6NR09482A
Copyright Disclaimer : Copyright 2017 Royal Society of Chemistry
Depositing User : Symplectic Elements
Date Deposited : 07 Feb 2017 19:04
Last Modified : 06 Sep 2017 08:20
URI: http://epubs.surrey.ac.uk/id/eprint/813483

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