title: Glucosamine-Anchored Graphene Oxide Nanosheets: Fabrication, Ultraviolet Irradiation, and Electrochemical Properties.
abstract: A biofunctionalized graphene oxide (GO) nanosheet with improved physicochemical properties is useful for electrocatalysis and sensor development. Herein, a new class of functionalized GO with a chemically anchored biomolecule glucosamine is developed. Structural and chemical analyses confirm the glucosamine anchoring. Ultraviolet irradiation transforms the surface chemistry of GO. Glucosamine-anchored GO nanosheets exhibit improved cyclic voltammetric and amperometric sensing activity toward the model redox probe, ruthenium(II) and N-acetylneuraminic acid, respectively. The biomolecular anchoring and ultraviolet irradiation helped to tune and enhance the properties of GO, which may find multiple applications in optimizing sensor platforms.
authors.forename: Murugan
authors.initials: M
authors.lastname: Veerapandian
authors.forename: Nicolas
authors.initials: N
authors.lastname: Lévaray
authors.affiliation: ‡Medical IT Technology, Korea Electronics Technology Institute, Gyeonggi-do 463-816, Republic of Korea.
authors.forename: Min-Ho
authors.initials: MH
authors.lastname: Lee
authors.forename: Suzanne
authors.initials: S
authors.lastname: Giasson
authors.forename: X X
authors.initials: XX
authors.lastname: Zhu
mesh_terms: D003217:Conductometry / Q000295:instrumentation*; D004553:Electric Conductivity; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005944:Glucosamine / Q000737:chemistry* / Q000528:radiation effects; D006108:Graphite / Q000737:chemistry* / Q000528:radiation effects; D008422:Materials Testing; D008567:Membranes, Artificial; D053758:Nanoparticles / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D008567:Membranes, Artificial; D010087:Oxides; D006108:Graphite; D005944:Glucosamine
keywords: amperometric sensing; cyclic voltammetry; glucosamine; graphene oxide; photoluminescence; ultraviolet irradiation