Influence of pH upon surface-enhanced enzyme-catalyzed luminol chemiluminescence at vicinity of nanoscale-corrugated gold and silver films |
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| Authors: | Ou Meigui Lu Guowei Shen Hong Descamps Armel Marquette Christophe André Blum Loïc Jacques Roux Stéphane Tillement Olivier Cheng Bolin Perriat Pascal |
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| Institution: | MATEIS, INSA-Lyon, Université de Lyon, Villeurbanne, France. |
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| Abstract: | 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. |
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