Biosensor using magnetic nanoparticles, detection device using the same, and detection method using the same

摘要

According to an embodiment of the present application, in a biosensor, a magnetic nanoparticle composite, a reaction unit including a first electrode and a second electrode; And a sample introduction part forming a passage to allow a sample to be introduced into the reaction part from the outside of the biosensor, wherein the magnetic nanoparticle composite comprises: a first capture material and a magnetic nanoparticle for capturing a first target material. It includes particles and a reaction material that performs at least one of an oxidation reaction and a reduction reaction, and the magnetic nanoparticle composite is magnetic in the reaction part, so that the motility may be changed according to a change in a condition of the reaction part. The first electrode has a second trapping material for trapping a second target material is fixed, the second electrode is an electrode different from the first electrode, the first target material and A biosensor may be provided, characterized in that at least one of the second target materials is included in the sample.