Abstract: A light-shielding body that shields incident light from an adjacent pixel is easily formed even in a case where the pixel is made finer. An imaging element is provided with a photoelectric conversion unit, an insulating film, an incident light transmitting film, and a light-shielding body. The photoelectric conversion unit is formed in a semiconductor substrate to perform photoelectric conversion of incident light from a subject and is arranged in a plurality of pixels. The insulating film is arranged on a plurality of pixels to insulate the semiconductor substrate. The incident light transmitting film is arranged adjacent to the insulating film of the plurality of pixels and transmits the incident light. The light-shielding body is arranged in a groove formed in the incident light transmitting film on a peripheral edge of each of the plurality of pixels to shield the incident light.

Abstract: To provide a chip for detecting a biological substance with high detection accuracy. The present technology provides a chip for detecting a biological substance, including: a plurality of pixels, in which each of the pixels includes at least a holding surface for holding the biological substance and a photoelectric conversion unit that is provided below the holding surface and on a semiconductor substrate, and a color-mixture suppressing unit is provided between the pixels. Further, the present technology provides a biological-substance detection apparatus and a biological-substance detection system using the chip for detecting a biological substance.