Results 151 to 160 of about 110,918 (349)

Ultrasound‐Powered, Battery‐Free Implants via Triboelectric Energy Harvesting

Advanced Materials Technologies, EarlyView.
Ultrasound‐driven triboelectric nanogenerators (US‐TENGs) present a promising approach to battery‐free implants by combining body‐safe ultrasound with the material and structural versatility of TENGs. This review categorizes current US‐TENG research into long‐term and transient short‐term applications and discusses key challenges in materials, device ...
Youngwook Chung, Saswat Choudhury, Young‐Jun Kim, In‐Yong Suh, Keren Dai, Sang‐Woo Kim   +5 more
wiley   +1 more source

Vibro-acoustography: An imaging modality based on ultrasound-stimulated acoustic emission

, 1999
Mostafa Fatemi, James F. Greenleaf
openalex   +2 more sources

Ultrasound‐Driven Triboelectric Technology for Functional Wireless Power Transfer

Advanced Materials Technologies, EarlyView.
This study analyzes recent advancements in ultrasound‐driven triboelectric nanogenerators (US‐TENGs) that enable efficient wireless energy transfer for under‐tissue and underwater applications. The US‐TENGs power rechargeable implantable bioelectronics, drive battery‐free electrical stimulators for biotherapy, and provide robust underwater ...
Iman M. Imani, Liyun Ma, Joon‐Ha Hwang, Byeong‐Jae Min, Ji Sang Ahn, Saeid Azizian, Sang‐Woo Kim, Jun Chen, Sunghoon Hur, Hyun‐Cheol Song   +9 more
wiley   +1 more source

Incidence of Cochlear Implant Electrode Contacts in the Functional Acoustic Hearing Region and the Influence on Speech Recognition with Electric-Acoustic Stimulation. [PDF]

Otol Neurotol, 2023
Nix EP, Thompson NJ, Brown KD, Dedmon MM, Selleck AM, Overton AB, Canfarotta MW, Dillon MT.   +7 more
europepmc   +1 more source

Photothermomechanically Efficient, Low‐Cost, High‐Cycle‐Life, Hybrid MXene‐Polymer Actuators

Advanced Materials Technologies, EarlyView.
The addition of MXenes to elastomer‐plastic‐paper films enables the creation of easily prepared actuators that are scalable for small robotic applications. Known as MXene‐polymer Trilayer Actuators (MPTAs), they bend from UV light. Their usefulness is demonstrated through kirigami‐inspired flower‐shaped art design, parallel manipulator for waveguiding,
Ken Iiyoshi, Georgios Korres, Orsolya Nagy, Gabriel Roldán, Panče Naumov, Stefan Schramm, Mohamad Eid   +6 more
wiley   +1 more source

Amplification of light in a plasma by stimulated ion acoustic waves driven by multiple crossing pump beams

, 2011
R. K. Kirkwood, P. Michel, Richard A. London, D. A. Callahan, N. B. Meezan, E. Williams, W. Seka, L. J. Suter, C. Haynam, O. L. Landen   +9 more
openalex   +2 more sources

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

Advanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

Auditory stimulation during REM sleep modulates REM electrophysiology and cognitive performance

Communications Biology
REM sleep is critical for memory, emotion, and cognition. Manipulating brain activity during REM could improve our understanding of its function and benefits.
Miguel Navarrete, Viviana Greco, Martyna Rakowska, Michele Bellesi, Penelope A. Lewis   +4 more
doaj   +1 more source

Acoustic stimulation during sleep predicts long-lasting increases in memory performance and beneficial amyloid response in older adults. [PDF]

Age Ageing, 2023
Wunderlin M, Zeller CJ, Senti SR, Fehér KD, Suppiger D, Wyss P, Koenig T, Teunissen CE, Nissen C, Klöppel S, Züst MA.   +10 more
europepmc   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source