Nanoelectrode

A nanoelectrode is an incredibly tiny electrode—so small it's measured in nanometers, about one-billionth of a meter—that scientists use to study chemical reactions and detect substances at extremely small scales. These miniature electrodes can measure electrical signals from individual cells, molecules, or even single electrons, making them invaluable tools in medical diagnostics, environmental monitoring, and battery research. Because of their tiny size, nanoelectrodes can access confined spaces and provide measurements with remarkable precision that regular-sized electrodes simply cannot achieve.