Probing the Spatial Impulse Response of Ultrahigh-Frequency Ultrasonic Transducers with Photoacoustic Waves

2020 ◽  
Vol 14 (3) ◽  
Author(s):  
Qiang-Bing Lu ◽  
Tuo Liu ◽  
Lei Ding ◽  
Ming-Hui Lu ◽  
Jie Zhu ◽  
...  
Keyword(s):  
Impulse Response ◽  
Ultrasonic Transducers ◽  
Ultrahigh Frequency

scholarly journals Simulation and fabrication of 0–3 composite PZT films for ultrahigh frequency (100–300 MHz) ultrasonic transducers

2016 ◽  
Vol 119 (9) ◽  
pp. 094103 ◽  
Author(s):  
Xiaoyang Chen ◽  
Chunlong Fei ◽  
Zeyu Chen ◽  
Ruimin Chen ◽  
Ping Yu ◽  
...  
Keyword(s):  
Ultrasonic Transducers ◽  
Ultrahigh Frequency ◽  
Pzt Films

scholarly journals Measurements of acoustic radiation force of ultrahigh frequency ultrasonic transducers using model-based approach

2021 ◽  
Author(s):  
Sangnam Kim ◽  
Sunho Moon ◽  
Sunghoon Rho ◽  
Sangpil Yoon
Keyword(s):  
Single Cell ◽  
Acoustic Radiation ◽  
Ultrasonic Transducer ◽  
Radiation Force ◽  
Solid Sphere ◽  
Acoustic Radiation Force ◽  
Ultrasonic Transducers ◽  
Ultrahigh Frequency ◽  
Cell Phenotype ◽  
Target Cells

AbstractEven though ultrahigh frequency ultrasonic transducers over 60 MHz have been used for single cell level manipulation such as intracellular delivery, acoustic tweezers, and stimulation to investigate cell phenotype and cell mechanics, no techniques have been available to measure actual acoustic radiation force (ARF) applied to target cells. Therefore, we have developed an approach to measure ARF of ultrahigh frequency ultrasonic transducers using theoretical model of the dynamics of a solid sphere in a gelatin phantom. To estimate ARF at the focus of 130 MHz transducer, we matched measured maximum displacements of a solid sphere with theoretical calculations. We selected appropriate ranges of input voltages and pulse durations for single cell applications and estimated ARF were in the range of tens of pN to nN. FRET live cell imaging was demonstrated to visualize calcium transport between cells after a target single cell was stimulated by the developed ultrasonic transducer.

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