This is the revision of the last renewal of a technology resource grant (P41) entitled """"""""A Resource on Medical Ultrasonic Transducer Technology"""""""". It was funded at Penn State University in 1997 to pursue innovative research in high frequency (HF) ultrasonic transducers and arrays as well as to serve the medical ultrasound community who has a need for such transducers and arrays. In 2002 the Resource was moved to USC and renewed in 2005. In the past 5 years, significant progress has been made in transducer materials, HF single element transducers and arrays, and imaging electronics, resulting in 101 refereed publications and 10 patents or patent disclosures. In addition, a new initiative on studying the feasibility of ultrasound microbeams defined as ultrasound beams at frequencies higher than 200 MHz was launched. Novel piezoelectric thin/thick films have been developed allowing ultrahigh frequency (UHF) transducers (200 MHz -1 GHz) to be designed and built. HF linear arrays at 30 MHz have been improved to consist of now 256 elements and a curved linear array at 20 MHz for imaging posterior side of the eye has been developed. Prototype real-time analog and digital HF imaging platforms are fully functional. Exploratory experiments on ultrasound microbeam for trapping cells, cell sorting, cellular mechanotransduction, and acoustic radiation force imaging of microstructures were carried out, demonstrating that exciting opportunities exist for ultrasound to play a more significant role in the promising field of cellulr bioengineering. There have been 17 collaborative projects and 8 service projects. In next grant period, there will be four internal core projects: (I) hovel transducer materials and UHF transducers (II) HF arrays and imaging platforms, (III) ultrasound microbeam, and (IV) novel piezoelectric materials and HF material characterization along with 15 collaborative projects and 4 service projects. The major thrusts of the core research will be (1) to develop UHF single element transducers for microbeam applications, (2) to develop a 35 MHz phased array and imaging platform for cardiac imaging in small animals, (3) to develop linear arrays at 50 MHz and higher and curved linear arrays in the 15 - 20 MHz range, and (4) to exploit cellular applications of ultrasound microbeams.

Public Health Relevance

This project is focused at developing ultrasonic devices at a frequency much higher than that commonly used in clinical scanning. They can be used to image the eye, skin and small animals. They can also be used to interrogate and manipulate cells if the frequency is increased to beyond 200 MHz.

Agency
National Institute of Health (NIH)
Institute
National Institute of Biomedical Imaging and Bioengineering (NIBIB)
Type
Biotechnology Resource Grants (P41)
Project #
2P41EB002182-15A1
Application #
8337479
Study Section
Special Emphasis Panel (ZEB1-OSR-C (M2))
Program Officer
Lopez, Hector
Project Start
1997-09-30
Project End
2017-07-31
Budget Start
2012-08-01
Budget End
2013-07-31
Support Year
15
Fiscal Year
2012
Total Cost
$1,327,349
Indirect Cost
$355,968
Name
University of Southern California
Department
Biomedical Engineering
Type
Schools of Engineering
DUNS #
072933393
City
Los Angeles
State
CA
Country
United States
Zip Code
90089
Kim, Min Gon; Yoon, Sangpil; Chiu, Chi Tat et al. (2018) Investigation of Optimized Treatment Conditions for Acoustic-Transfection Technique for Intracellular Delivery of Macromolecules. Ultrasound Med Biol 44:622-634
Chen, Zhaojiang; Zhang, Yang; Li, Shiyang et al. (2017) Frequency dependence of the coercive field of 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 single crystal from 0.01?Hz to 5?MHz. Appl Phys Lett 110:202904
Ding, Yichen; Abiri, Arash; Abiri, Parinaz et al. (2017) Integrating light-sheet imaging with virtual reality to recapitulate developmental cardiac mechanics. JCI Insight 2:
Chen, Xiaoyang; Lam, Kwok Ho; Chen, Ruimin et al. (2017) An adjustable multi-scale single beam acoustic tweezers based on ultrahigh frequency ultrasonic transducer. Biotechnol Bioeng 114:2637-2647
Qian, Xuejun; Ma, Teng; Yu, Mingyue et al. (2017) Multi-functional Ultrasonic Micro-elastography Imaging System. Sci Rep 7:1230
Kim, Min Gon; Park, Jinhyoung; Lim, Hae Gyun et al. (2017) Label-free analysis of the characteristics of a single cell trapped by acoustic tweezers. Sci Rep 7:14092
Chiu, Chi Tat; Kang, Bong Jin; Eliahoo, Payam et al. (2017) Fabrication and Characterization of a 20-MHz Microlinear Phased-Array Transducer for Intervention Guidance. IEEE Trans Ultrason Ferroelectr Freq Control 64:1261-1268
Lou, Yang; Yen, Jesse T (2017) Improved contrast for high frame rate imaging using coherent compounding combined with spatial matched filtering. Ultrasonics 78:152-161
Yang, Yang; Chen, Zeyu; Song, Xuan et al. (2017) Biomimetic Anisotropic Reinforcement Architectures by Electrically Assisted Nanocomposite 3D Printing. Adv Mater 29:
Zhang, Yang; Tang, Liguo; Tian, Hua et al. (2017) Determination of temperature dependence of full matrix material constants of PZT-8 piezoceramics using only one sample. J Alloys Compd 714:20-25

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