BIOSENSING METHOD IN WHICH FUNCTIONAL SUBSTANCE-CONTAINING MICROPARTICLES ARE USED
[Problem] To provide a novel biosensing method in which functional substance-containing microparticles are used. [Solution] The present invention provides a biosensing method characterized in including: a step for sealing a functional substance in the interior of polymer microparticles
a step for fixing a ligand on the surface of the polymer microparticles
a step for bonding a target and the polymer microparticles via the ligand
a step for causing the functional substance to elute from the polymer microparticles bonded to the target
and a step for quantitatively measuring the physical properties of the eluted functional substance
the target being quantified on the basis of the result of measuring the physical properties. According to this method, it becomes possible to use, as a marker, a functional substance that previously could not be used in biosensing.