Results 61 to 70 of about 4,441 (262)

Magnesium‐Based Transient Bioelectronics, Bio‐Optics and Bio‐Scaffolds

Advanced Functional Materials, EarlyView.
This paper reviews the state of the art and recent advances in magnesium‐based thin‐film, foils, and scaffolds for applications in transient bio‐optics, bioelectronics and tissue engineering. The design principles, fabrication methods, material properties, and integration strategies are discussed in detail.
Massimo Mariello, Yves Leterrier
wiley   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

A pneumatic particle-blocking variable-stiffness bending actuator

AIP Advances
This study introduces a variable-stiffness pneumatic bending actuator to enhance the stiffness of flexible robots. The bending actuator combines the working principles of a pneumatic drive, a wedge structure, and particle blockage.
He Peng, Xia Wang, Dexu Geng
doaj   +1 more source

Tissue‐Adhesive Fabric‐Based Bioelectronics for Wearable and Implantable Applications

Advanced Functional Materials, EarlyView.
An implantable and wearable bioelectronic textile (iTextile) is introduced as a unified platform bridging wearable and implantable systems. By integrating a self‐healing polymer, stretchable silk fabric, conductive composite electrodes, and an adhesive hydrogel, the platform enables conformal, stable interfacing with soft tissues. The iTextile supports
Soojung An, Yewon Kim, Kyoungryong Kim, Heewon Choi, Sungjun Yoon, Jaewon Ju, Mikyung Shin, Donghee Son   +7 more
wiley   +1 more source

Design and Characterization of Twisted and Coiled Polymers and Their Applications as Soft Actuators

IEEE Access
This study is an experimental investigation of twisted and coiled polymer actuators, focusing on characterization of the effects of design and operating parameters on the actuator performance. Using nylon-6 monofilaments, a custom fabrication and testing
Jacob Martin, Marc Doumit
doaj   +1 more source

Increasing Inter‐Micellar Connectivity Toughens and Imparts Cooling‐Induced Shape Memory in Micellar Hydrogels

Advanced Functional Materials, EarlyView.
Oligomerizing Pluronic triblock copolymers provides a processing strategy for tuning the mechanical properties and stimuli‐responsive behaviors of micellar hydrogels. Varying oligomer fraction produces hydrogels spanning brittle to highly extensible responses; maintaining micellar architectures enables cooling‐induced reverse thermal shape memory and ...
Gourav Kumbhojkar, Eric Yang, Arman Moussavi, EunBi Oh, Haeji Kim, Wei Chen, Junsoo Kim, Sinan Keten, Ryan L. Truby   +8 more
wiley   +1 more source

Conceptual mechanical design of antagonistic variable stiffness joint based on equivalent quadratic torsion spring

Science Progress, 2020
The variable stiffness joint is a kind of flexible actuator with variable stiffness characteristics suitable for physical human–robot interaction applications.
Jishu Guo
doaj   +1 more source

Snap‐Through–Driven Liquid Crystal Elastomers for High‐Power Remote Microneedle Actuation Toward Smart Livestock Systems

Advanced Functional Materials, EarlyView.
A magnetically assisted snap‐through liquid crystal elastomer transforms photochemical deformation into a high‐power mechanical impulse, enabling remote microneedle actuation and highlighting its potential for future smart livestock intervention systems.
Chae Won Lee, Nankyung Kim, SeungHyun Park, Dae Seok Kim   +3 more
wiley   +1 more source

Walking with a powered ankle-foot orthosis: the effects of actuation timing and stiffness level on healthy users

Journal of NeuroEngineering and Rehabilitation, 2020
Background In the last decades, several powered ankle-foot orthoses have been developed to assist the ankle joint of their users during walking. Recent studies have shown that the effects of the assistance provided by powered ankle-foot orthoses depend ...
Marta Moltedo, Tomislav Baček, Ben Serrien, Kevin Langlois, Bram Vanderborght, Dirk Lefeber, Carlos Rodriguez-Guerrero   +6 more
doaj   +1 more source

Variable Stiffness Actuators: Review on Design and Components

IEEE/ASME Transactions on Mechatronics, 2016
Variable stiffness actuators (VSAs) are complex mechatronic devices that are developed to build pas- sively compliant, robust, and dexterous robots. Numerous different hardware designs have been developed in the past two decades to address various demands on their functionality. This review paper gives a guide to the design process from the analysis of
Wolf, Sebastian, Grioli, G., Eiberger, Oliver, Friedl, Werner, Grebenstein, Markus, Höppner, Hannes, Burdet, Etienne, Caldwell, D., Carloni, R., Catalano, M., Lefeber, D., Stramigioli, S., Tsagarakis, N., Van Damme, M., Van Ham, R., Vanderborght, B., Visser, L.C., Bicchi, Antonio, Albu-Schäffer, Alin Olimpiu   +18 more
openaire   +3 more sources