Copernican Letters
Catalytic oxidation of glucose on gold nanoparticles in neutral pH
DOI: http://dx.doi.org/10.12775/CL.2013.006
Abstract
We have demonstrated the importance of stabilizing on the catalytic activity towards glucose oxidation of gold nanoparticles which is dependent on the active metal surface. For this purpose we prepare gold nanoparticles stabilized with oleyl amine (AuNPs-OLA) and compare them with phosphomolybdate-capped gold nanoparticles (AuNPs-PMo12). The electrochemical oxidation of glucose on glassy carbon electrode modified with these gold nanoparticles has been studied in phosphate buffer (pH=7.4) on glassy carbon electrodes. Under these conditions AuNPs-PMo12 are more active in catalytic process than AuNPs-OLA. This is caused by poorly conductive nature of oleyl amine where the amine molecules stabilize the particles nearly covalently and they form densely packed shell on surface of gold nanoparticles blocking metal active sites. The gold nanoparticles will be also subjected to physical characterization, like Spectrophotometry UV-VIS and Transmission Electron Microscopy (TEM) to verify their structure and morphology.
Keywords
Full Text:
PDFReferences
M. C. Daniel, D. Astruc, “Gold Nanoparticles: Assembly, Supramolecular Chemistry, Quantum-Size-Related Properties, and Applications towards Biology, Catalysis, and Nanotechnology”, Chem. Rev. 104, 2004, 293-346.
H. E. Toma, V. M. Zamarion, S. H. Toma, K. Araki, „The coordination chemistry at gold nanoparticles”, Journal of the Brazilian Chemical Society, no.7 vol .21, 2010.
L. Srisombat, A. C. Jamison, T.R. Lee, „Stability: A key issue for self-assembled monolayers on gold as thin-film coatings and nanoparticle protectants”, Colloids and Surfaces A: Physiochemical and Engineering Aspects 390, 2011, 1-9.
M. Haruta, „Size- and support-dependency In the catalysis of gold”, Catalysis Today 36, 1997, 153-166.
J. Wang, J. Gong, Y. Xiong, J. Yang, Y. Gao, Y. Liu, X. Lu, Z. Tang, “Shape-dependent electrocatalytic activity of monodispersed gold nanocrystals toward glucose oxidation”, Chem. Commun. 47, 2011, 6894-6896.
M. Tominga, T. Shimazoe, M. Nagashima, I. Taniguchi, „Electrocatalytic oxidation of glucose at gold nanoparticle-modified carbon electrodes in alkaline and neutral solutions”, Electrochemistry Communications 7, 2005, 189-193.
K. E. Toghill, R. G. Compton, „Electrochemical Non-enzymatic Glucose Sensors: A Perspective and an Evaluation.”, Int. J. Electrochem. Sci. 5, 2010, 1246 - 1301.
K. Saha, S. S. Agasti, C. Kim, X. Li, V. M. Rotello, „Gold nanoparticles In Chemical and Biological Sensing”, Chemical Reviews 112, 2012, 2739-29.
S. Zeng, K. T. Young, I. Roy, X. Q. Dinh, X. Yu, F. Luan, “A Review on Functionalized Gold Nanoparticles for Biosensing Applications”, Plasmonics 6, 2011, 491-506.
J. Naruse, L. Q. Hoa, Y. Sugano, T. Ikeuchi, H. Yoshikawa, M. Saito, E. Tamiya, „Development of biofuel cells based on gold nanoparticle decorated multi-walled carbon nanotubes.”, Biosensor and Bioelectronics 30, 2011, 204-210.
L. A. Dykman, N. G. Khlebtsov, “Gold Nanopaticles in Biology and Medicine: Recent Advances and Prospects, Acta Nature 3, 2011, 34-55.
M. W. Hasio, R. R. Adzic, E. B. Yeager, “Electrochemical Oxidation of Glucose on Single Crystal and Polycrystalline Gold Surfaces in Phosphate Buffer”, J. Electrochem. Soc. 143, 1996, 759-767.
R. R. Adzic, M. W. Hsiao, E. B. Yeager, “Electrochemical oxidation of glucose on single crystal gold surfaces”, J. Electroanal. Chem. 260, 1989, 475-485.
E.B. Makovos, C. C. Liu, “A Cyclic Voltammetric study of glucose oxidation on a gold electrode”, Bioelectrochemistry and Bioenergetics 15, 1986, 157-165.
B. Cortie, E. van der Lingen, “Catalytic gold nano-particles”, Materials Forum 26, 2002, 1-14.
N. Li, Q. Xu, M. Zhou, W. Xia, X. Chen, M. Bron, W. Schuhmann, M. Muhler, “Ethylenediamine- anchored gold nanoparticles on multi-walled carbon nanotubes: Synthesis and characterization”, Electrochemistry Communications 12, 2010, 939-943.
M. Aslam, L. Fu, M. Su, K. Vijayamohanan, V. P. Dravid, “Novel one-step synthesis of amine-stabilized aqueous colloidal gold nanoparticles”, Journal of materials Chemistry 14, 2004, 1795-1797.
M. Skunik, P. J. Kulesza, “Phosphomolybdate-modified multi-walled carbon nanotubes as effective mediating systems for electrocatalytic reduction of bromate”, Analytica Chimica Acta 631, 2009, 153-160.
A. Z. Ernst, S. Żołądek, K. Wiaderek, J. A. Cox, A. Kolary-Żurowska, K. Miecznikowski, P. J. Kulesza, „Network films of conducting polymer-linked polyoxometalate-modified gold nanoparticles: Preparation and electrochemical charactriaztion”, Electrochimica Acta 53, 2008, 3924-3931.
Y. Wang, I. A. Weinstock, “Polyoxometalate-decorated gold nanoparticles”, Chemical Society Reviews 41, 2012, 7479-7496.
