title: Graphene in combination with cucurbit[n]urils as electrode modifiers for electroanalytical biomolecules sensing.
abstract: Cucurbit[n]urils have been supported on graphene to develop sensitive and selective electrodes. The electrochemical response of modified electrodes containing graphene or graphene plus cucurbiturils has been studied for three probe molecules including hydroxymethylferrocene, ferrocyanide and methylviologen. It was found that the properties of these modified electrodes are derived from an increase in electron mobility and catalytic activity imparted by graphene and the selective complexation and molecular recognition due to cucurbit[n]urils. These properties of the graphene/cucurbit[n]urils modified electrodes have been applied for the electrochemical detection of relevant biomolecules as tryptophan at 0.69×10(-7) M concentration.
authors.affiliation: Instituto Universitario de Tecnología Química CSIC-UPV and Departamento de Química, Universidad Politécnica de Valencia, 46022 Valencia, Spain.
authors.forename: Mireia
authors.initials: M
authors.lastname: Buaki-Sogo
authors.forename: María
authors.initials: M
authors.lastname: del Pozo
authors.forename: Pedro
authors.initials: P
authors.lastname: Hernández
authors.forename: Hermenegildo
authors.initials: H
authors.lastname: García
authors.forename: Carmen
authors.initials: C
authors.lastname: Quintana
mesh_terms: D002384:Catalysis; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*
chemical_list: D007093:Imidazoles; D006108:Graphite