Results 51 to 60 of about 183,753 (281)

Feasibility of Parylene C for encapsulating piezoelectric actuators in active medical implants

Frontiers in Medical Technology, 2023
Parylene C is well-known as an encapsulation material for medical implants. Within the approach of miniaturization and automatization of a bone distractor, piezoelectric actuators were encapsulated with Parylene C.
Alina Kohler, Alina Kohler, Alina Kohler, Felix Blendinger, Sonja Müller, Sonja Müller, Ulrich Mescheder, Volker Bucher   +7 more
doaj   +1 more source

Flextensional ultrasonic motor using the contour mode of a square piezoelectric plate [PDF]

, 2004
This paper presents the design, fabrication, and characterization of a new type of standing wave piezoelectric ultrasonic motor. The motor uses a metallic flextensional amplifier, or cymbal, to convert the contour mode vibrations of a square ...
Leinvuo, J T, Wilson, Stephen, Leinvuo, Joni T., Wilson, Stephen A., Whatmore, Roger W., Whatmore, R W   +5 more
core   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Thick-Film Actuation Technologies For MEMS Applications

, 2006
This paper compares two thick-film actuation technologies and assesses their suitability for use within micromachined devices. The materials are a piezoelectric composition, which exhibits a d33 coefficient of the order of 130pC/N, and a magnetostrictive
Torah, Russel, Beeby, Steve, Harris, Nick, Grabham, Neil, White, Neil   +4 more
core   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

Review of micro-miniature piezoelectric-driven robots and their untethered actuation technologies

Gongneng cailiao yu qijian xuebao
With the advancement of novel functional material-driven technologies and micro-nano manufacturing techniques, micro-miniature robots have demonstrated significant application potential due to their compact size and high efficiency.
Junjie YANG, Xianzhao SONG, Mengying ZHANG, Quanliang ZHAO   +3 more
doaj   +1 more source

Optical actuation of a micromechanical photodiode via the photovoltaic-piezoelectric effect

Microsystems & Nanoengineering, 2021
Radiation pressure and photothermal forces have been previously used to optically actuate micro/nanomechanical structures fabricated from semiconductor piezoelectric materials such as gallium arsenide (GaAs).
A. Rampal, R. N. Kleiman
doaj   +1 more source

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source

Ultra-low-noise microwave to optics conversion in gallium phosphide

Nature Communications, 2022
Coherently interfacing microwave and optical radiation at the single photon level is an outstanding challenge in quantum technologies. Here, the authors show bi-directional on-chip conversion between MW and optical frequencies exploiting piezoelectric ...
Robert Stockill, Moritz Forsch, Frederick Hijazi, Grégoire Beaudoin, Konstantinos Pantzas, Isabelle Sagnes, Rémy Braive, Simon Gröblacher   +7 more
doaj   +1 more source

MicroRoboScope: A Portable and Integrated Mechatronic Platform for Magnetic and Acoustic Microrobotic Experimentation. [PDF]

Adv Robot Res
This work presents the MicroRoboScope, a highly integrated, compact, and portable microrobotic experimentation platform combining electromagnetic and acoustic actuation with real‐time visual feedback into a single, end‐to‐end device. The system enables closed‐loop control and tracking algorithm experimentation within an accessible and unified hardware ...
Sokolich M, Yang Y, Cherukumilli S, Kirmizitas FC, Das S.   +4 more
europepmc   +2 more sources