Abstract: A method of measuring chip characteristics includes: outputting an operating voltage to a chip by a test device, wherein the chip comprises a plurality of oscillator circuits configured to generate a plurality of oscillating signals according to the operating voltage; and testing the chip by the test device under a situation that the test device outputs a system clock signal having a first clock period to the chip, including: changing the operating voltage sequentially with the test device until the chip changes from a normal state to a failure state, so as to generate a boundary operating voltage; and recording the plurality of oscillating signals generated according to the boundary operating voltage as measurement data by the test device, wherein the measurement data represents chip characteristics of the chip corresponding to the first clock period.

Abstract: A detection system and method for the migrating cell is provided. The system is configured to detect a migrating cell combined with an immunomagnetic bead. The system includes a platform, a microchannel, a magnetic field source, a coherent light source and an optical sensing module. The microchannel is configured to allow the migrating cell to flow in it along a flow direction. The magnetic field source is configured to provide magnetic force to the migrating cell combined with the immunomagnetic bead. The magnetic force includes at least one magnetic force component and the magnetic force component is opposite to the flow direction of the microchannel. The coherent light source is configured to provide the microchannel with the coherent light. The optical sensing module is configured to receive the interference light caused by the coherent light being reflected by the sample inside the microchannel.

Abstract: The present disclosure provides a method for treating arthritis by using a stem cell preparation. The stem cell preparation of the present disclosure can effectively delay cartilage degeneration caused by arthritis, and it is confirmed by whole blood analysis and blood biochemical analysis that the stem cell preparation in the form of three-dimensional stem cell spheres provides a safe treatment for arthritis. The present disclosure also provides a method for preparing the stem cell preparation.