PMID- 24148515 OWN - NLM STAT- MEDLINE DCOM- 20140603 LR - 20161125 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 116 DP - 2013 Nov 15 TI - One-step fabrication of bio-functionalized nanoporous gold/poly(3,4-ethylenedioxythiophene) hybrid electrodes for amperometric glucose sensing. PG - 1054-9 LID - S0039-9140(13)00672-3 [pii] LID - 10.1016/j.talanta.2013.08.014 [doi] AB - We report a simple, one-step synthesis of hybrid film by electropolymerizing 3,4-ethylenedioxythiophene (EDOT) on nanoporous gold (NPG) for applications in amperometric glucose biosensors. The enzyme, glucose oxidase (GOx), is entrapped into poly(3,4-ethylenedioxythiophene) (PEDOT) matrix, simultaneously. Scanning electron microscope (SEM) and transmission electron microscopy (TEM) studies show the NPG preserve its original bicontinuous nanoporous structure and the PEDOT film grows uniformly with a thickness of ~10 nm. The modified electrodes have been investigated by cyclic voltammetry (CV) and single potential step chronoamperometry (SPSC). The influence of PEDOT film's thickness has been explored to optimize sensor behaviors. Mediated by p-benzoquinone (BQ), the calibration curves have been obtained by applying relatively low constant potential of 200 mV (vs. SCE). The NPG/PEDOT/GOx (2CVs) biosensor exhibits high sensitivity of 7.3 muA mM(-1) cm(-2) and a wide linear range of 0.1-15 mM, making it suitable for reliable analytic applications. CI - (c) 2013 Elsevier B.V. All rights reserved. FAU - Xiao, Xinxin AU - Xiao X AD - Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, People's Republic of China. FAU - Wang, Meng'en AU - Wang M FAU - Li, Hui AU - Li H FAU - Si, Pengchao AU - Si P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130817 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Benzoquinones) RN - 0 (Bridged Bicyclo Compounds, Heterocyclic) RN - 0 (Enzymes, Immobilized) RN - 0 (Polymers) RN - 0 (Solutions) RN - 0 (poly(3,4-ethylene dioxythiophene)) RN - 3T006GV98U (quinone) RN - 7440-57-5 (Gold) RN - EC 1.1.3.4 (Glucose Oxidase) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Benzoquinones/chemistry MH - *Biosensing Techniques MH - Bridged Bicyclo Compounds, Heterocyclic/*chemistry MH - Calibration MH - Electrochemical Techniques MH - Electrodes MH - Enzymes, Immobilized/chemistry MH - Glucose/*analysis MH - Glucose Oxidase/chemistry MH - Gold/*chemistry MH - Polymers/*chemistry MH - Porosity MH - Sensitivity and Specificity MH - Solutions OTO - NOTNLM OT - Electropolymerization OT - Glucose biosensor OT - Nanoporous gold OT - Poly(3,4-ethylenedioxythiophene) EDAT- 2013/10/24 06:00 MHDA- 2014/06/04 06:00 CRDT- 2013/10/24 06:00 PHST- 2013/05/15 00:00 [received] PHST- 2013/07/31 00:00 [revised] PHST- 2013/08/11 00:00 [accepted] PHST- 2013/10/24 06:00 [entrez] PHST- 2013/10/24 06:00 [pubmed] PHST- 2014/06/04 06:00 [medline] AID - S0039-9140(13)00672-3 [pii] AID - 10.1016/j.talanta.2013.08.014 [doi] PST - ppublish SO - Talanta. 2013 Nov 15;116:1054-9. doi: 10.1016/j.talanta.2013.08.014. Epub 2013 Aug 17.