Bio-detection chip and detection method associated therewith

A bio-detection chip, comprising:

• an upper substrate and a lower substrate disposed opposite to each other, a reference electrode, a driving electrode, a first dielectric layer, a second dielectric layer, a first hydrophobic layer and a second hydrophobic layer;
• wherein,
• the reference electrode is formed on a side of the upper substrate facing the lower substrate;
• the driving electrode is formed on a side of the lower substrate facing the upper substrate;
• the first dielectric layer, the first hydrophobic layer, the second hydrophobic layer and the second dielectric layer are disposed successively between the reference electrode and the driving electrode;
• wherein the bio-detection chip further comprises a plurality of micro-capsules arranged between the first hydrophobic layer and the second hydrophobic layer, each of the micro-capsules encapsulating a plurality of charged microspheres, and surfaces of the charged microspheres having a first biomolecule for specifically binding with a second biomolecule that enters the bio-detection chip so as to give rise to a color change, wherein one of the first biomolecule and the second biomolecule is a biomolecule to be detected, and if a voltage is applied between the reference electrode and the driving electrode the charged microspheres move close to the upper substrate.