Biochemical sensors, methods for their manufacture and biochemical methods and systems for testing substances of interest

摘要

The invention provides a biochemical sensor with probes uniformly fixed in sections (2). The probes used for detecting a substance of interest are caught in advance on particles (3), and the particles are fixed in each of the sections (2) arranged in the form of a lattice using a chemical patterning method on the surface of a baseplate (1). In each section (2), the particles (3) with attached probes caught on the surface are fixed in a single layer and are tightly packed. The quantity of particles (3) fixed on the baseplate (1) is determined by using light scattered from the particles (3) or by labeling the particles in advance with a fluorescent substance. Therefore, the number of probes caught in each section (2) of an individual biochemical sensor is determined so as to allow the substance of interest to be detected with high accuracy.