Figure 2
From: Label-free analysis of the characteristics of a single cell trapped by acoustic tweezers
Images of polystyrene microspheres acquired by inverted fluorescence microscope (a) before and (b) after transmitting monocycle pulses with a length of 6.7 ns and a magnitude of 10 V at a PRF of 167 kHz to tightly focused high-frequency ultrasound transducer. As the transducer was moved to the right while delivering ultrasound microbeams at a PRF of 167 kHz, the captured microsphere was also moved in the same direction (c) and (d). White and red dashed circles indicate the initial and moved locations of the transducer, respectively. Scale bars in the images indicate 100 µm.
