Observation of nanoimpact events of catalase on diamond ultramicroelectrodes by direct electron transfer

Observation of nanoimpact events of catalase on diamond ultramicroelectrodes by direct electron transfer

We report electrochemical detection of single-catalase collisions at diamond ultramicroelectrodes and show the operative mechanism involves direct enzyme-mediated charge transfer between electrode and solution. Hydrogen peroxide increases the collision frequency, which fluorescence correlation spect...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2017-07, Vol.53 (59), p.8332-8335
Hauptverfasser: Jiang, Luyun, Santiago, Ibon, Foord, John
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container_title Chemical communications (Cambridge, England)
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creator Jiang, Luyun
Santiago, Ibon
Foord, John
description We report electrochemical detection of single-catalase collisions at diamond ultramicroelectrodes and show the operative mechanism involves direct enzyme-mediated charge transfer between electrode and solution. Hydrogen peroxide increases the collision frequency, which fluorescence correlation spectroscopy diffusion measurements suggest stems from an increase in the diffusion rate as the underlying cause.
doi_str_mv 10.1039/c7cc04085g
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title Observation of nanoimpact events of catalase on diamond ultramicroelectrodes by direct electron transfer
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