caa a22 4500 445880805 CHVBK 20180317145542.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00604-010-0543-6 doi (NATIONALLICENCE)springer-10.1007/s00604-010-0543-6 Bimetallic nano-structured glucose sensing electrode composed of copper atoms deposited on gold nanoparticles [Elektronische Daten] [Hongyan Shi, Zhixin Zhang, Yang Wang, Qingyuan Zhu, Wenbo Song] We describe the preparation and sensing capabilities of a bimetallic electrode consisting of copper atoms deposited on gold nanoparticles (GNPs). The electrode was obtained by first constructing a GNP template on the surface of a glassy carbon electrode by exploiting the hydrogen-bonding interactions between pyridine groups on the surface of the GNPs and the carboxy groups of poly(acrylic acid). GNPs (60nm in diameter) were homogeneously and densely deposited in the template (as revealed by scanning electron microscopy). The electro-deposition of copper ad-atoms on GNPs occurred at an underpotential and was proven by electrochemical techniques. The presence of GNPs in the template accelerated the deposition at low potential due to its beneficial effect on the rate of electron transfer. The new electrode was studied for its response to glucose. Highly stable and reproducible catalytic activity towards glucose oxidation is observed and attributed to the synergistic catalytic effect of the copper atoms on the surface of the GNPs. The detection limit is as low as 50nM (at a signal-to-noise ratio of 3), and the response is between 200nM and 10mM of glucose. Figure Preparation of a bimetallic electrode consisting of copper atoms deposited on gold nanoparticles (GNPs) Springer-Verlag, 2011 GNP template nationallicence Hydrogen-bonding nationallicence Cu nationallicence Electrodeposition nationallicence Glucose nationallicence Shi Hongyan College of Chemistry, Jilin University, 130012, Changchun, China aut Zhang Zhixin The First Hospital of Jilin University, 130021, Changchun, China aut Wang Yang College of Chemistry, Jilin University, 130012, Changchun, China aut Zhu Qingyuan China-Japan Union Hospital of Jilin University, 130033, Changchun, China aut Song Wenbo College of Chemistry, Jilin University, 130012, Changchun, China aut Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 85-94 0026-3672 173:1-2<85 2011 173 604 https://doi.org/10.1007/s00604-010-0543-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0543-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shi Hongyan College of Chemistry, Jilin University, 130012, Changchun, China aut NATIONALLICENCE 700 1- Zhang Zhixin The First Hospital of Jilin University, 130021, Changchun, China aut NATIONALLICENCE 700 1- Wang Yang College of Chemistry, Jilin University, 130012, Changchun, China aut NATIONALLICENCE 700 1- Zhu Qingyuan China-Japan Union Hospital of Jilin University, 130033, Changchun, China aut NATIONALLICENCE 700 1- Song Wenbo College of Chemistry, Jilin University, 130012, Changchun, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 85-94 0026-3672 173:1-2<85 2011 173 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer