Conformal piezoelectric energy harvesting and storage from motions of the heart, lung, and diaphragm
Canan Dagdeviren,Byung Duk Yang,Yewang Su,Yewang Su,Phat L. Tran,Pauline Joe,Eric K. Anderson,Jing Xia,Jing Xia,Vijay A. Doraiswamy,Behrooz Dehdashti,Xue Feng,Bingwei Lu,Robert S. Poston,Zain Khalpey,Roozbeh Ghaffari,Yonggang Huang,Marvin J. Slepian,John A. Rogers +18 more
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TLDR
Advanced materials and devices are reported 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.Abstract:
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.read more
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Book ChapterDOI
Approaches to the Development of Implantable Therapeutic Systems
TL;DR: This chapter comprises discussion on various implantable systems including the marketed ones and their applications in drug delivery.
Dissertation
Nonlinear vibration energy harvesting : fundamental limits, robustness issues, and practical approaches
TL;DR: A general framework and model hierarchy for the derivation of fundamental limits of the nonlinear energy harvesting rate based on Euler-Lagrangian variational approach is developed and an almost-universal strategy termed buy-low-sell-high (BLSH) is presented to maximize the harvested energy for a wide range of set-ups and excitation statistics.
Patent
Coiled and twisted nanofiber yarns for electrochemically harvesting electrical energy from mechanical deformation
Ray H. Baughman,Shaoli Fang,Carter S. Haines,Na Li,Jiangtao Di,Seon Jeong Kim,Shi Hyeong Kim,Keon Jung Kim,Tae Jin Mun,Changsoon Choi +9 more
TL;DR: In this article, a yarn energy harvester was used to harvest wave energy, combined with thermally-driven artificial muscles to convert temperature fluctuations to electrical energy, sewn into textiles for use as self-powered respiration sensors, and used to power a light emitting diode and to charge a storage capacitor.
Journal ArticleDOI
Fabrication and characterization of PU/NKLNT/CFs based lead-free piezoelectric composite for energy harvesting application
Zakia Chelli,Hakim Achour,Malika Saidi,Mourad Laghrouche,Ahcène Chaouchi,Mohamed Rguiti,Yannick Lorgouilloux,Christian Courtois +7 more
TL;DR: For vibration energy harvesting applications, a flexible composite material based on a polyurethane (PU) polymer matrix filled with polycrystalline particles (Na0.535K0.48)0.966 Li0.058 Nb0.1O...
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