Patent ID: 11899013
Assignee: CANON MEDICAL SYSTEMS CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of detecting or quantifying a detection target in a specimen, the method comprising:
irradiating a reaction mixture with infrared pulse laser light, the reaction mixture containing: (1) composite particles, each comprising a carrier particle including two regions including a first region made of a metal and a second region made of a nonmetal on a surface, and an affinity substance carried on the carrier particle and having affinity to the detection target, and (2) the specimen, the infrared pulse laser light being capable of being absorbed by the first region, to promote binding between the composite particles and the detection target; and
irradiating the reaction mixture with a measurement light after the irradiation with the infrared pulse laser light, and measuring a transmitted light intensity or a scattered light intensity to detect or quantify the detection target based on a result of the measurement, wherein the irradiation with the infrared pulse laser light is stopped during the irradiation with the measurement light.