Influence of pH upon surface-enhanced enzyme-catalyzed luminol chemiluminescence at vicinity of nanoscale-corrugated gold and silver films

Photochemistry and Photobiology
Meigui OuPascal Perriat

Abstract

Au and Ag biochips were fabricated to investigate the influence of pH upon the chemiluminescence (CL) of luminol at vicinity of surface-adsorbed peroxidase. A nanoscaled-corrugation of the metal induces an enhancement of the luminol CL which is maximal in the pH range favoring peroxidase catalysis and greater for gold than for silver. This is the proof that, in the CL process, the reactions involving peroxidase are surface-enhanced near corrugated surfaces.

References

Mar 24, 1998·Journal of Bioluminescence and Chemiluminescence·M M OosthuizenR D Levy
Mar 9, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Stéphane RouxOlivier Tillement
May 14, 2005·Analytical Chemistry·Zhi-Feng ZhangLi-Juan Liu
Jul 29, 2006·Luminescence : the Journal of Biological and Chemical Luminescence·Cheng-Ming Wang, Hua Cui
Oct 13, 2006·Journal of the American Chemical Society·Kadir AslanChris D Geddes
Mar 10, 2007·Prikladnaia biokhimiia i mikrobiologiia·I S Alpeeva, I Iu Sakharov

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