electrode fouling -> παθητικοποίηση της ηλεκτροδιακής επιφάνειας, εναπόθεση ακαθαρσιών στο ηλεκτρόδιο

wings

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electrode fouling -> δηλητηρίαση ηλεκτροδίου

http://195.134.76.37/old_site_10-7-2016/publications/Analytical/sample_F.pdf
« Last Edit: 12 May, 2020, 09:45:23 by spiros »


spiros

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Και μετά τη δηλητηρίαση πεθαίνει;

Παθητικοποίηση της ηλεκτροδιακής επιφάνειας (fouling).
https://ikee.lib.auth.gr/record/294796/files/GRI-2017-20461.pdf

Electrode fouling is a broad term generally describing the passivation of an electrode surface by a fouling agent that forms an increasingly impermeable layer on the electrode. This occurs by a wide range of mechanisms predominantly depending on the identity of the responsible fouling agent. The fouling agent may be a component of the matrix, the analyte itself, or a product of the electrochemical reaction. Electrode fouling prevents an analyte of interest from making physical contact with the electrode for electron transfer to elicit an electrochemical response. The fouling agent may specifically adhere to certain structural features present on the electrode surface, such as edges and grain boundaries. The fouling agent tends to adhere to the electrode surface as a result of favourable interactions between the fouling agent and the electrode surface. This includes hydrophobic, hydrophilic, and electrostatic interactions depending on the particular chemistries of the fouling agent and the electrode surface.
https://www.degruyter.com/view/journals/revac/35/1/article-p1.xml

Electrode fouling is a major hindrance on the performance of electrodes. Few materials are completely bioinert, as in they trigger no bodily reaction. Some material that may be bioinert in theory fails to be ideal in practice because of defects in their formation, processing, manufacturing or sterilization. Fouling can be caused by adsorption of proteins, fibrous tissue, trapped cells or dead cell fragments, bacteria, or any other reactive particle. Protein adsorption is influenced by the nature and geometry of domains including hydrophobicity, polar and ionic interactions of the material and surrounding particles, charge distribution, kinetic movement, and pH.
https://en.wikipedia.org/wiki/Surface_chemistry_of_neural_implants

The adhesion of a foreign material onto a surface, especially so as to reduce its functionality.
https://en.wiktionary.org/wiki/fouling

Fouling is the accumulation of unwanted material on solid surfaces to the detriment of function. The fouling materials can consist of either living organisms (biofouling) or a non-living substance (inorganic and/or organic). Fouling is usually distinguished from other surface-growth phenomena in that it occurs on a surface of a component, system, or plant performing a defined and useful function and that the fouling process impedes or interferes with this function.
https://en.wikipedia.org/wiki/Fouling



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