Development of implantable wireless-biosensor for fish

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Periodic checks of fish health and the rapid detection of abnormalities are necessary at fish farms. Several studies indicate that blood glucose and total cholesterol levels closely correlate to fish health. In this study, implantable wireless-biosensor systems were developed using the newly developed needle-type enzyme sensor, consisting of a micro-electrode and immobilized enzyme. Glucose and total cholesterol levels in fish could be monitored in free-swimming fish.