Research
Wireless powering of bio-implantable devices
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- Efficient wireless power transfer across tissue is highly desirable for miniaturizing medical implants such as pacemakers, cochlear implants, and neural stimulators. Elimination of the bulky battery and its associated safety issues raises the possibility of tiny (less than 1 mm) devices that integrate sensing, stimulation, and communication module. We develop sub-millimeter-sized autonomous implantable devices that can sense biological signals and send the information to an external reader using backscattered modulation. (photo courtesy of phys.org)
- Supporting Grants :
한국연구재단 중견연구자지원사업 (2023.03-2028.02)
한국연구재단 대학중점연구소지원사업 (2018.03-2024.02)
한국연구재단 시스템반도체융합전문인력육성사업 (2020-2023)
한국연구재단 신진연구자지원사업 (2017.03-2021.02)
- Relevant Publications :
H. Lee+, H. Park+, T. Kim, M. S. Nam, Y. J. Heo*, and S. Kim*, ‘‘A mm-sized implantable glucose sensor using a fluorescent hydrogel“, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, San Diego, CA, June, 2023 [PDF]
H. Kim+, S. Yoo+, H. Joo+, J. Lee, D. An, S. Nam, H. Han, D. -H. Kim*, and S. Kim*, ‘‘Wide-range wireless power transfer using heterogeneously coupled and flippable neutrals in parity–time symmetry’’, Science Advances, 2022
S. Yoo+, J. Lee+, H. Joo+, S. -H. Sumwoo, S. Kim*, and D. -H. Kim*, ‘‘Wireless power transfer and telemetry for implantable bioelectronics’’, Advanced Healthcare Materials, 10 (17), 2021 [PDF]
H. Joo+, Y. Lee+, J. Kim+, J. -S. Yoo, S. Yoo, S. Kim, A. K. Arya, S. Kim, S. H. Choi, N. Lu, S. Kim*, S. -T. Lee*, and D. -H. Kim*, ‘‘Soft, closed-loop, and implantable drug delivery device wirelessly integrated with wearable devices to treat fatal seizures’’, Science Advances, 7 (1), 2021
R. S. Hassan, J. H. Lee, S. Kim*, ‘‘A minimally invasive implantable sensor for continuous wireless glucose monitoring based on a passive resonator’’, IEEE Antennas and Wireless Propagation Letters, 19 (1), pp. 124-128, 2020 [PDF]
H. Kim, H. Hirayama, S. Kim, K. Han, R. Zhang, and J. Choi* ‘‘Review of near-field wireless power and communication for biomedical applications’’, IEEE Access, 5, 2017.
S. Kim, J. Ho, and A. S. Y. Poon*, ‘‘Non-coil, optimal sources for wireless powering of sub-millimeter implantable devices’’, Progress In Electromagnetics Research, 158, pp. 99-108, 2017.
J. Ho, A. Yeh, E. Neofytou, S. Kim, Y. Tanabe, B. Patlolla, R. Beygui, and A. S. Y. Poon*, ‘‘Wireless power transfer to deep-tissue microimplants’’, PNAS, vol. 111, no. 22, 2014. Featured on the Cover. Picked as Top 20 Events at Stanford 2014.
S. Kim, J. Ho, and A. S. Y. Poon*, ‘‘Midfield wireless powering of subwavelength autonomous devices’’, Physical Review Letters, 110 (20), 2013. Selected as an Editors’ Suggestion and Highlighted in Physics.
J. Ho, S. Kim, and A. S. Y. Poon*, ‘‘Midfield wireless powering for implantable systems’’, Proc. IEEE, 101 (6), 2013.
S. Kim, J. Ho, L.Y. Chen, and A. S. Y. Poon*, ‘‘Wireless power transfer to a cardiac implant’’, Applied Physics Letters, 101 (7), 2012. Featured in Stanford News. Selected as APL Editor's pick in Biophysics.