title: Electrochemical activity of glucose oxidase on a poly(ionic liquid)-Au nanoparticle composite.
abstract: Glucose oxidase (GOx) adsorbed on an ionic liquid-derived polymer containing internally organized columns of Au nanoparticles exhibits direct electron transfer and bioelectrocatalytic properties towards the oxidation of glucose. The cationic poly(ionic liquid) provides an ideal substrate for the electrostatic immobilization of GOx. The encapsulated Au nanoparticles serve to both promote the direct electron transfer with the recessed enzyme redox centers and impart electronic conduction to the composite, allowing it to function as an electrode for electrochemical detection.
authors.affiliation: Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Ilinois 60439, USA.
authors.forename: Sungwon
authors.initials: S
authors.lastname: Lee
authors.forename: Bryan S
authors.initials: BS
authors.lastname: Ringstrand
authors.forename: David A
authors.initials: DA
authors.lastname: Stone
authors.forename: Millicent A
authors.initials: MA
authors.lastname: Firestone
mesh_terms: D055162:Biocatalysis; D055664:Electrochemical Techniques; D004566:Electrodes; D004579:Electron Transport; D004800:Enzymes, Immobilized / Q000737:chemistry / Q000378:metabolism; D005949:Glucose Oxidase / Q000737:chemistry / Q000378:metabolism*; D006046:Gold / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D011108:Polymers / Q000737:chemistry*; D055672:Static Electricity; D013379:Substrate Specificity
chemical_list: D004800:Enzymes, Immobilized; D052578:Ionic Liquids; D011108:Polymers; D006046:Gold; D005949:Glucose Oxidase