A biosensor having a hollow coil having wires coiled in parallel and an electronic circuit component operably connected to the coil, wherein the wires include at least a first coiled wire which may be used as a counter electrode, a second coiled wire which may be used as a working electrode and a third coiled wire which may be used as a reference electrode, wherein the second coiled wire is provided with a biocompatible layer having a bioreceptor, wherein the electronic circuit component is capable of generating an input signal for a transceiver based upon the activity of the bioreceptor and wirelessly sending the input signal to the transceiver, wherein the electronic circuit component is encapsulated in a biocompatible resin.
