Development of new technology for the analysis of and pharmacological effects on intracellular and intercellular conduction, using pulse-driven MI sensor operated at room temperature

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Magnetic sensors constructed with a magnetic amorphous wire surrounded by a pickup-coil, are referred to as MI sensor. In this study, a pair of MI magnetic sensors were operated by applying electric current through a CMOS inverter circuit, and were used as a gradio-sensor by using a differential amplifier circuit. During musculature preparations isolated from the gut of animals were superfused with an extracellular solution, and spontaneous magnetic waves were successfully recorded. In some experiments, electric field potentials were simultaneously recorded by suing extracellular electrodes along with magnetic waves.