Microion
Microion is a term used in some scientific contexts to refer to a small ion or to ions within a micro-scale ionic environment. It is not a standard, universally defined term with a single fixed meaning, and its precise interpretation varies by discipline and source. In general, microions are the ions involved in processes or devices that operate at microscopic scales, such as microfabricated systems, microfluidic channels, or microelectrode applications.
In neuroscience and pharmacology, the related technique of microiontophoresis employs tiny currents to eject charged molecules
In electrochemistry and colloidal science, microions can denote the small counterions and co-ions that populate electrolyte
Terminology notes: microion is not a universally standardized term across all literature. When encountered, it is
See also: ion, electrolyte, microiontophoresis, microfluidics, electrical double layer.