This invention provides a method for evaluating
stem cell trilineage differentiation based on single-
cell membrane tension measurement, comprising: measuring the
membrane tension of multiple single cells in a
stem cell sample to be tested, and calculating the mean
membrane tension; setting a membrane tension threshold for
stem cell trilineage differentiation, comparing the mean membrane tension with the threshold, and evaluating the differentiation process and efficiency of the stem
cell sample to be tested. This invention also provides the application of the above evaluation method in the
quality control of clinical-grade stem cells, the evaluation of stem
cell differentiation induction effects, or the screening of stem cell
virulence before
transplantation. This invention utilizes
optical tweezers technology to construct a single-cell mechanical testing platform, enabling non-destructive quantitative measurement of single-
cell membrane tension. Cells can remain intact and viable after testing and can be reused. By comparing the membrane tension data of the sample to be tested with the threshold, a systematic evaluation of stem cell differentiation process and efficiency can be completed, which can be widely applied in the fields of stem cell
quality control and
regenerative medicine clinical translation.