Interdigitated electrodes
Innovation in the detection and monitoring of biological systems
DOI:
https://doi.org/10.56162/transdigital613Keywords:
interdigitated electrodes, impedance, oxidative stress, biosensors, electrical signalsAbstract
Interdigitated electrodes are small devices with a geometry composed of two microelectrode arrays arranged in an alternating and parallel configuration, with micrometric spacing between them. This arrangement allows electrical signals to be applied and collected in a cyclic manner, making them useful tools for analyzing very small samples, such as microorganisms or other biological components. For this reason, they have been proposed as biosensors capable of detecting various biological phenomena. One of the most widely used is impedance, which reflects the opposition to the flow of electricity in a solution and can reveal important changes in cells, such as those associated with oxidative stress. Due to this monitoring capability, these sensors have potential applications in areas such as healthcare, the food industry, agriculture, and environmental monitoring.
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