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Correlated Electrochemical and Optical Tracking of Discrete Collision Events

Author:
Fosdick, Stephen E., Anderson, Morgan J., Nettleton, Elizabeth G., Crooks, Richard M.
Source:
Journal of the American Chemical Society 2013 v.135 no.16 pp. 5994-5997
ISSN:
1520-5126
Subject:
aggregation behavior, electrochemistry, electrodes
Abstract:
Optical tracking of collisions between insulating microbeads and an ultramicroelectrode surface are correlated to electrochemical measurements and 3D simulations. The experiments are based on partial blocking of the electrode surface by the beads. Results obtained using these three methods provide details regarding the radial distribution of landing locations, the extent of current blockage, collision frequency, motion of beads on the electrode surface following collisions, and aggregation behavior both prior to collisions and afterward on the electrode surface.
Agid:
5388231