Journal
TALANTA
Volume 99, Issue -, Pages 643-648Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2012.06.061
Keywords
Cupric oxide nanoparticles; Enzyme mimic; Chemiluminescence; Luminol; Hydrogen peroxide; Glucose
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Funding
- National Natural Science Foundation of China [21175023]
- Medical Innovation Project of Fujian Province [2009-CX-17]
- Natural Science Foundation of Fujian Province [2011J01034]
- Science and Technology Planning Project of Fujian Province [2011Y0030]
- Program for New Century Excellent Talents in Fujian Province University [JA11102]
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As a peroxidase mimic, cupric oxide nanoparticles were found to enhance the chemiluminescence (CL) of luminol-H2O2 system up to 400 folds. The CL spectra and radical scavengers were conducted to investigate the possible CL enhancement mechanism. It was suggested that the enhanced CL could be attributed to the peroxidase-like activity of CuO nanoparticles, which effectively catalyzed the decomposition of hydrogen peroxide into hydroxyl radicals. The effects of the reactant concentrations and some organic compounds were also investigated. The proposed method could be used as a sensitive detection tool for hydrogen peroxide and glucose. (C) 2012 Elsevier B.V. All rights reserved.
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