Tailoring the Dynamic Actuation of 3D‐Printed Mechanical Metamaterials through Inherent and Extrinsic Instabilities
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Engineering Materials"
DOI: 10.1002/adem.201901586
Abstract: Architected materials have facilitated a significant breakthrough in the control of the mechanical behavior of structures. Most notably, metamaterials with unprecedented properties can be easily designed in large scales, exhibiting high strength, tunability of their… read more here.
Keywords: engineering; berkeley edu; department mechanical; mechanical metamaterials ... See more keywords
Magneto‐Responsive Bistable Structures with Rate‐Dependent Actuation Modes
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202313865
Abstract: Structural instabilities can be used to provide rapid responses activated by mechanical force or displacement thresholds. The emergence of responsive materials has opened the door for adapting such structural instabilities to actuators that will abruptly… read more here.
Keywords: actuation; rate; bistable structures; magneto responsive ... See more keywords
Liquid Crystal Elastomer Hollow Fibers as Artificial Muscles with Large and Rapid Actuation Enabled by Thermal‐Pneumatic Enhanced Effect
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202402403
Abstract: Liquid crystal elastomer (LCE) has large and reversible deformation under stimulation, making it an ideal material for artificial muscles. Currently, multi‐stimulus responsive LCE actually responds to each stimulus independently rather than responding to several stimuli… read more here.
Keywords: artificial muscles; liquid crystal; actuation; crystal elastomer ... See more keywords
Soft Magnetic Artificial Muscles with High Work Density and Actuation Strain via Dual Cross‐Linking Design
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DOI: 10.1002/adfm.202516218
Abstract: Soft artificial muscles offer transformative potential in robotics, wearable electronics, and biomedical devices due to their light weight, mechanical compliance, and multidirectional actuation. However, their broader utility is hindered by an intrinsic trade‐off between stretchability… read more here.
Keywords: artificial muscles; actuation; work density; actuation strain ... See more keywords
Carbon Black‐Containing Cholesteric Liquid Crystal Elastomers Enabling Multi‐Level Information Encryption and Multimode Actuation
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DOI: 10.1002/adfm.202517597
Abstract: Cholesteric liquid crystal elastomers (CLCEs) with a unique periodic helical arrangement of mesogens enable light‐selective reflection, allowing variable coloration for applications in static information encryption and dynamic biomimetic actuation. However, most of the CLCEs are… read more here.
Keywords: information; liquid crystal; actuation; cholesteric liquid ... See more keywords
4D‐Printed Microrobots with Synergistic Integration of Magnetic Actuation, Diffractive Optical Sensing, and pH‐Adaptive Morphing
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DOI: 10.1002/adfm.202518838
Abstract: Soft microrobots exhibit distinct advantages in biomedical applications, with their exceptional maneuverability in confined spaces and environmental adaptability offering innovative solutions for targeted theranostics. However, current systems are inherently constrained by the physical separation of… read more here.
Keywords: integration; actuation; magnetic actuation; actuation diffractive ... See more keywords
Self‐Sensing Archimedean Spiral Artificial Muscle Fibers with Bidirectional Actuation for Electromagnetic Wave/Light Modulation and Mechanical Display
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DOI: 10.1002/adfm.202519002
Abstract: The coiled structure acts as a performance “amplifier” role in linearly contracted artificial muscle fibers. However, the fiber contraction is limited when adjacent coils are in contact, and integrating the self‐sensing function after further increasing… read more here.
Keywords: self sensing; muscle fibers; actuation; muscle ... See more keywords
Humidity- and Photo-Induced Mechanical Actuation of Cross-Linked Liquid Crystal Polymers.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201604792
Abstract: Azobenzene-containing cross-linked liquid crystal polymer films without hydrophilic groups exhibit dual-responsivity to humidity and UV light. The films realize not only a series of large and sophisticated contactless motions by utilizing moisture, including an inchworm… read more here.
Keywords: cross linked; liquid crystal; humidity; linked liquid ... See more keywords
Wafer-Scale Electroactive Nanoporous Silicon: Large and Fully Reversible Electrochemo-Mechanical Actuation in Aqueous Electrolytes.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202105923
Abstract: Nanoporosity in silicon results in interface-dominated mechanics, fluidics, and photonics that are often superior to the ones of the bulk material. However, their active control, for example, by electronic stimuli, is challenging due to the… read more here.
Keywords: aqueous electrolytes; electrochemo mechanical; mechanical actuation; nanoporous silicon ... See more keywords
Molecular‐Level Methylcellulose/MXene Hybrids with Greatly Enhanced Electrochemical Actuation
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DOI: 10.1002/adma.202200660
Abstract: Ti3C2Tx MXene film is promising for electrochemical actuators due to its high electrical conductivity and volumetric capacitance. However, its actuation performance is limited by the slow ion diffusion through the film and poor mechanical property… read more here.
Keywords: level methylcellulose; actuation; methylcellulose mxene; mxene hybrids ... See more keywords
High‐Performance Organohydrogel Artificial Muscle with Compartmentalized Anisotropic Actuation Under Microdomain Confinement
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202202193
Abstract: Current hydrogel actuators mostly suffer from weak actuation strength and low responsive speed owing to their solvent diffusion‐induced volume change mechanism. Here a skeletal muscle‐inspired organohydrogel actuator is reported in which solvents are confined in… read more here.
Keywords: organohydrogel actuator; solvent diffusion; hydrogel actuators; muscle ... See more keywords