The invention relates to a method and equipment for detecting tumor microsomes, and especially relates to and discloses a method and a
detector for detecting tumor microsomes by using
laser tweezers and micro
fluidics. The detection method comprises the steps that:
laser tweezers of different polarizations are generated; dual-beam double
laser tweezers are used for focusing, and particles combined with tumor
microsome antibodies in a channel of a
micro fluidic chip are captured by the tweezers; a sample to be detected is mixed with the particles combined with tumour
microsome antibodies; changes of physical parameters of the particles combined with tumor
microsome antibodies before and after being mixed with the sample are collected by the
detector, and qualification and accurate quantitation of the sample requiring detection can be carried out according to the parameters. The
detector comprises a laser
system, a nanometer
positioning system, a camera
system, optical parts, mechanical parts, a
data collecting and transmitting
system, and automatic controlling and
image processing application software. According to the invention,
single tumor microsome particle can be detected, and the method and the equipment are characterized in high specificity, simple operation, short detection period, high sensitivity, and good
repeatability. Also, with the method and the equipment, blood samples can be re-detected.