The invention relates to a method for measuring the temperature change of an
organelle. The method comprises the steps of preparing a temperature-sensitive water-soluble CdTe / CdS / ZnS
quantum dot solution, and
coating silicon dioxide on the temperature-sensitive water-soluble CdTe / CdS / ZnS
quantum dot solution by using a reverse
microemulsion method to obtain a CdTe / CdS / ZnS@SiO2 particle solution; then preparing a positioning probe CdTe / CdS / ZnS@SiO2-Cyto, a
lysosome targeting positioning probe CdTe / CdS / ZnS@ SiO2-
Lyso or a mitochondria targeting positioning probe CdTe / CdS / ZnS@SiO2-Mito for ingesting
cytoplasm in cells; respectively taking positioning probes into cells through a
liposome transfection method, carrying out targeted positioning in
intracellular cytoplasm or on different organelles through different targeted modifications, combining with the temperature-sensitive characteristics of CdTe / CdS / ZnS
quantum dots, and realizing acquisition of temperature-sensitive
fluorescence information of quantum dots of a targeted
organelle through the action of combining an inverted
fluorescence microscope with slit locking of a
spectrograph, so that temperature change information in
cytoplasm or temperature change information of the targeted localized
organelle is obtained. According to the invention, targeting cytoplasm and specific organelles (such as
lysosome and mitochondria) and monitoring the temperature change of the cytoplasm and specific organelles are realized.