Acoustic Tunable Battery-Free Implants Based on Sustainable Triboelectric Nanogenerators With Metal-Polymer Intermixing Layers

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2024-11-15 DOI:10.1002/aenm.202403712

Youngwook Chung, Hongwei Yuan, Ze Wang, Jang-Mook Jeong, Byung-Joon Park, Joon-Ha Hwang, Su-Jeong Suh, Byung-Ok Choi, Hyun-moon Park, Young-Jun Kim, Keren Dai, Sang-Woo Kim

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Abstract

Ultrasound-driven triboelectric nanogenerators (US-TENGs) offer an innovative solution for transcutaneous power transfer, with the potential to enable battery-free, permanently implantable electronics. However, research to date has primarily demonstrated only fragmentary functionalities for these applications. This work presents the simultaneous transmission of acoustic power and precise acoustic information using a double-electrode US-TENG, enabling a battery-free implant controlled via ultrasound. High and sustained output from a US-TENG is crucial for operating the versatile system; therefore, a novel triboelectric membrane with a top electrode incorporating a gold-polymer intermixing layer has been designed. Reversible micro-cracks form in the intermixing layer, ensuring electrical connectivity under high-frequency strain. In vivo experiments confirm that the system is biocompatible and can be reliably operated inside living rats. These achievements represent a significant step toward realizing multifunctional implantable electronics that can be reliably powered and controlled by ultrasound.

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基于金属-聚合物混合层的可持续三电纳米发电机的声学可调谐无电池植入物

超声波驱动的三电纳米发电机（US-TENGs）为经皮电能传输提供了一种创新的解决方案，有可能实现无电池、永久植入式电子器件。然而，迄今为止的研究仅为这些应用展示了零星的功能。这项研究利用双电极 US-TENG 同时传输声功率和精确的声学信息，实现了通过超声波控制的无电池植入。US-TENG 的高持续输出对于多功能系统的运行至关重要；因此，我们设计了一种新型三电膜，其顶部电极包含金聚合物混合层。混合层中形成了可逆的微裂缝，确保了高频应变下的电气连接。体内实验证实，该系统具有生物相容性，可在活体大鼠体内可靠运行。这些成就标志着我们向实现多功能植入式电子器件迈出了重要一步，这种电子器件可通过超声波可靠地供电和控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.