Ultrasound-Driven Triboelectric Nanogenerator with Biocompatible 2-Hydroxyethyl Methacrylate
- Authors
- Kim, Bosung; Yoon, Hong-Joon; Kim, Young-Jun; Park, Byung-Joon; Jung, Jae-Hwan; Kim, Sang-Woo
- Issue Date
- Jul-2023
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS ENERGY LETTERS, v.8, no.8, pp.3412 - 3419
- Journal Title
- ACS ENERGY LETTERS
- Volume
- 8
- Number
- 8
- Start Page
- 3412
- End Page
- 3419
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/88818
- DOI
- 10.1021/acsenergylett.3c00953
- ISSN
- 2380-8195
- Abstract
- Ultrasound-driven triboelectric nanogenerators (TENGs)were recentlyproposed as an energy solution technology for a sustainable lifespanof implantable medical devices (IMDs). While the improvement of ultrasoundtransmission is crucial for achieving high energy generation, researchon the material properties of ultrasound-driven TENGs is still inits initial stage. In this work, multifunctional, biocompatible 2-hydroxyethylmethacrylate (HEMA) is suggested as both an encapsulation and triboelectriclayer for an implantable, modulus-tunable ultrasound-driven TENG (IMU-TENG).By adjusting the acoustic impedance of HEMA to be suitable for thesurrounding environment, the ultrasonic transmission coefficient isabout 10 times higher than that of a titanium (Ti) plate. Under invivo conditions, the IMU-TENG generates sufficient energy to chargea 100 & mu;F capacitor 3.7 times faster than the case with a Tiplate. This strategy of using multifunctional HEMA for high-performanceultrasound-driven TENGs could be a promising energy solution for low-poweredIMDs.
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