Results 61 to 70 of about 9,522 (260)

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

open access: yesAdvanced 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

Energy-based Safety in Series Elastic Actuation

open access: yes2020 IEEE International Conference on Robotics and Automation (ICRA), 2020
This work presents the concept of energy-based safety for series-elastic actuation. Generic actuation passivity and safety is treated, defining several energy storage and power flow properties related to passivity. Safe behaviour is not guaranteed by passivity, but can be guaranteed by energy and power limits that adapt the nominal behaviour of an ...
Wesley Roozing   +2 more
openaire   +2 more sources

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Design and Simulation Analysis of Flexible Joint SEA of Manipulator

open access: yesJixie chuandong, 2019
Series Elastic Actuator (SEA) can effectively improve the flexibility of the joint. However, SEA has the disadvantage of strong nonlinearity of force and deformation.
Zhang Zijian Du Yunpeng Han Shaojie Shang Kai Zuo Kungang Dong Yangyang
doaj  

Giant Electrostriction in Halide Perovskites Revisited With Double‐Modulation Interferometry

open access: yesAdvanced Functional Materials, EarlyView.
A giant electrostrictive effect in lead halide perovskites had been reported previously. This work uses sensitive interferometry to measure the electromechanical response of various halide perovskite samples. The results reveal no intrinsic electrostrictive compression. Instead, the materials expand primarily under an applied electric field as a result
Philipp Ramming   +4 more
wiley   +1 more source

Robust Force Control of Series Elastic Actuators [PDF]

open access: yesActuators, 2014
Force-controlled series elastic actuators (SEA) are widely used in novel human-robot interaction (HRI) applications, such as assistive and rehabilitation robotics. These systems are characterized by the presence of the “human in the loop”, so that control response and stability depend on uncertain human dynamics, including reflexes and voluntary forces.
CALANCA, Andrea   +2 more
openaire   +3 more sources

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

Intrinsically Multistable Soft Actuator Driven by Mixed‐Mode Snap‐Through Instabilities

open access: yesAdvanced Science
Actuators utilizing snap‐through instabilities are widely investigated for high‐performance fast actuators and shape reconfigurable structures owing to their rapid response and limited reliance on continuous energy input.
Yichi Luo   +6 more
doaj   +1 more source

Two‐Photon Grayscale Lithography (2GL) of High Mechanical and Optical Quality 3D Silica Glass Microstructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon grayscale lithography (2GL) enables high‐speed and precise 3D printing of thermolyzed silica glass microstructures with optical‐grade surface quality, high quality factors, and mechanical strength utilizing a custom‐made pre‐glass resist based on polyhedral oligomeric silsesquioxane (POSS) modified with a high‐sensitivity Norrish type II ...
Jonathan L. G. Schneider   +4 more
wiley   +1 more source

Environmental-Interaction Robotic Systems: Compliant Actuation Approach

open access: yesInternational Journal of Advanced Robotic Systems, 2007
Many successful designs of compliant actuators have been recently proposed. However, the challenge of providing passive and active motion in one actuator has remained.
Reza Ghorbani, Qiong Wu
doaj   +1 more source

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