Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, and Departments of Chemistry, Mechanical Science and Engineering, and Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
Proc Natl Acad Sci U S A. 2014 Feb 4;111(5):1927-32. doi: 10.1073/pnas.1317233111. Epub 2014 Jan 21.
Here, we report advanced materials and devices that enable high-efficiency mechanical-to-electrical energy conversion from the natural contractile and relaxation motions of the heart, lung, and diaphragm, demonstrated in several different animal models, each of which has organs with sizes that approach human scales. A cointegrated collection of such energy-harvesting elements with rectifiers and microbatteries provides an entire flexible system, capable of viable integration with the beating heart via medical sutures and operation with efficiencies of ∼2%. Additional experiments, computational models, and results in multilayer configurations capture the key behaviors, illuminate essential design aspects, and offer sufficient power outputs for operation of pacemakers, with or without battery assist.
在这里，我们报告了一些先进的材料和设备，这些设备可以从心脏、肺和隔膜的自然收缩和松弛运动中高效地将机械能转换为电能，我们在几个不同的动物模型中展示了这一点，这些动物模型的器官大小都接近人体尺度。这样的能量收集元件与整流器和微电池的组合提供了一个完整的柔性系统，可以通过医用缝线与跳动的心脏进行可行的整合，并实现约 2%的高效率。额外的实验、计算模型和多层配置的结果捕获了关键行为，阐明了基本的设计方面，并提供了足够的功率输出，可用于起搏器的运行，无需电池辅助。
