Nanocomposite Piezoelectrial Films for Medical Imaging

用于医学成像的纳米复合压电薄膜

• 批准号: 6550388
• 负责人: Yuhong Huang
• 金额: $ 9.57万
• 依托单位: CHEMAT TECHNOLOGY, INC.
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2003-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6550388
• 关键词: bioengineering /biomedical engineering; bioimaging /biomedical imaging; biomedical equipment development; electrophoresis; molecular film; nanotechnology; surface coating

DESCRIPTION (provided by applicant): Ultrasound imaging products, with total sales in U.S. of roughly $800M per year, now represent the single largest medical imaging market. This breaks down roughly into one third in cardiology, one third in radiology, and one third in obstetrics, vascular, and other applications. A small segment of the other applications category includes surgical use of ultrasound imaging. Many potential application sexist which require film thickness of 1-30 um and geometries of um2 to cm2. Some examples of these macroscopic devices include ultrasonic high frequency transducers for detailed imaging of the eye, fiber optic modulators, and for self-controlled vibration aldempling systems. Main problem is to fabricate PZT device with thickness and pitch size of several tens micrometers. This proposed research program is aiming to develop a novel process to deposit and patterning high performance sol-gel PZT composite film ultrasound devices. The resolution of this direct patterning for thin film can be higher than 1 um. PROPOSED COMMERCIAL APPLICATION: High frequency ultrasound transducer in the 20 to 100 MHz range for applications in intravascular and for the examination of the anterior segment of the eye and skin.

描述（由申请人提供）：超声成像产品在美国每年的总销售额约为 8 亿美元，目前代表着最大的单一医学成像市场。这大致分为心脏病学的三分之一，放射学的三分之一，产科、血管和其他应用的三分之一。其他应用类别的一小部分包括超声成像的外科使用。 许多潜在的应用存在性别歧视，要求薄膜厚度为 1-30 um，几何形状为 um2 至 cm2。这些宏观设备的一些例子包括用于眼睛详细成像的超声波高频换能器、光纤调制器和用于自控振动模制系统。 主要问题是制造厚度和间距尺寸为几十微米的PZT器件。 该研究计划旨在开发一种沉积和图案化高性能溶胶-凝胶 PZT 复合薄膜超声器件的新工艺。这种薄膜直接图案化的分辨率可以高于1um。 拟议的商业应用：20 至 100 MHz 范围内的高频超声换能器，用于血管内应用以及眼睛和皮肤的前段检查。

项目成果

Dielectric and Piezoelectric Properties of PZT Composite Thick Films with Variable Solution to Powder Ratios.

• DOI: 10.1111/j.1551-2916.2009.03065.x
• 发表时间: 2009-05-08
• 期刊: Journal of the American Ceramic Society. American Ceramic Society
• 作者: Wu D;Zhou Q;Shung KK;Bharadwaja SN;Zhang D;Zheng H
• 通讯作者: Zheng H

Piezoelectric films for high frequency ultrasonic transducers in biomedical applications.

• DOI: 10.1016/j.pmatsci.2010.09.001
• 发表时间: 2011-02
• 期刊: PROGRESS IN MATERIALS SCIENCE
• 影响因子: 37.4
• 作者: Zhou, Qifa;Lau, Sienting;Wu, Dawei;Shung, Kirk
• 通讯作者: Shung, Kirk