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The binding of acetylcholinesterase (AChE) to a propidium-modified piezoelectric quartz crystal and its surface enzymatic activity have been investigated.Propidium binds to a site remote to the active center of AChE – the peripheral anionic site (PAS) – which is located on the rim of the gorge to the active site.The gold electrodes of the quartz crystal were first modified with 11-mercaptoundecanoic...
Mass transfers in solution from or to an electrode surface occur at a micronic scale in many processes such as corrosion, electroless plating or electrocrystallization. Direct knowledge of local information is important for a better understanding of these processes. In this paper, we propose the use of an interferometric microscope to measure at a micronic scale concentration gradients which are...
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