A5008715397- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Advanced Materials and Mechanics
- Soft Robotics and Applications
- Vibration Control and Rheological Fluids
- Micro and Nano Robotics
- Underwater Vehicles and Communication Systems
- Modular Robots and Swarm Intelligence
- Ferroelectric and Piezoelectric Materials
- Biomimetic flight and propulsion mechanisms
- Vibration and Dynamic Analysis
- Multimodal Machine Learning Applications
- Ultra-Wideband Communications Technology
- Polymer composites and self-healing
- Hydrogels: synthesis, properties, applications
- Dynamics and Control of Mechanical Systems
- Antenna Design and Analysis
- Advanced Surface Polishing Techniques
- Robotic Locomotion and Control
- Adaptive Control of Nonlinear Systems
- Tactile and Sensory Interactions
- Interactive and Immersive Displays
- Full-Duplex Wireless Communications
- Nonlinear Dynamics and Pattern Formation
- Advanced Wireless Network Optimization
Zhejiang University
2016-2025
CAS Key Laboratory of Urban Pollutant Conversion
2025
Nanjing University of Aeronautics and Astronautics
2023
Zhejiang Lab
2023
Hangzhou Academy of Agricultural Sciences
2016-2019
Beijing Anzhen Hospital
2019
Capital Medical University
2019
Lishui Central Hospital
2019
Wenzhou Medical University
2019
Sir Run Run Shaw Hospital
2019
Soft robots driven by stimuli-responsive materials have unique advantages over conventional rigid robots, especially in their high adaptability for field exploration and seamless interaction with humans. The grand challenge lies achieving self-powered soft mobility, environmental tolerance, long endurance. We are able to advance a electronic fish fully integrated onboard system power remote control. Without any motor, the is solely electroactive structure made of dielectric elastomer...
A soft dielectric membrane is prone to snap-through instability. We present theory and experiment show that the instability can be harnessed achieve giant voltage-triggered deformation. mount a on chamber of suitable volume, pressurize into state near verge instability, apply voltage trigger snap without causing electrical breakdown. For an acrylic we demonstrate expansion area by 1692%, far beyond largest value reported in literature. The large even retained after switched off.
Dielectric elastomers are being developed as generators to harvest energy from renewable sources, such human movements and ocean waves. We model a generator system of two degrees freedom, represented on either the stress-stretch plane or voltage-charge plane. A point in represents state generator, curve path operation, contour cycle area enclosed by conversion per cycle. Each mechanism failure is The curves all known mechanics enclose region allowable states. this defines maximum conversion....
Abstract Soft ionic conductors, such as hydrogels and ionogels, have enabled stretchable transparent ionotronics, but they suffer from key limitations inherent to the liquid components, which may leak evaporate. Here, novel liquid‐free conductive elastomers (ICE) that are copolymer networks hosting lithium cations associated anions via bonds hydrogen demonstrated, intrinsically immune leakage evaporation. The ICEs show extraordinary mechanical versatility including excellent stretchability,...
Abstract Subject to a voltage, dielectric elastomer (DE) deforms. Voltage‐induced strains of above 100% have been observed when DEs are prestretched, and for certain network structures. Understanding mechanisms large actuation is an active area research. We propose that the voltage‐stretch response may be modified by prestretch, or using polymers with “short” chains. This modification results in suppression elimination electromechanical instability, leading strains. method select design DE,...
Inspired by the assembly of Lego toys, hydrogel building blocks with heterogeneous responsiveness are assembled utilizing macroscopic supramolecular recognition as adhesion force. The provides 3D transformation upon pH variation. After disassembly changing oxidation state, they can be re-assembled into a completely new shape. As service to our authors and readers, this journal supporting information supplied authors. Such materials peer reviewed may re-organized for online delivery, but not...
Hydrogels consist of cross-linked polymers that are highly swollen with water. Water evaporation or freezing during temperature changes may lead to stiff and brittle hydrogels. We introduce a strategy called “hydro-locking,” which involves immobilizing the water molecules within polymer network hydrogel. This is accomplished by establishing robust connections between using sulfuric acid. A sacrificial introduced shield prime from collapsing. Under hydro-locking mode, an...
Far greater voltage-actuated deformation is achievable for a dielectric elastomer under equal-biaxial dead load than rigid constraint usually employed. Areal strains of 488% are demonstrated. The suppresses electric breakdown, enabling the to survive snap-through electromechanical instability. breakdown voltage found increase with ramp rate. A nonlinear model viscoelastic elastomers developed and shown be consistent experimental observations.
A key challenge in bioinspired insect-scale running robots is to make them both agile and resilient. In this study, we develop a dielectric elastomer actuated soft robot that mimics inchworms. We use an the body, stretchable provide electrostatic actuation of high power density, multizone achieve ratcheting locomotion. fabricate muscles, feet single piece, with no internal open space. The runs four times its body length per second turns at radius about three 0.3 s. survives compression...
Typical hydrogels undergo slow and continuous shape change. Inspired by the Venus Flytrap, current work presents a hydrogel assembly that can reversibly non-continuous rapid snapping change due to bi-stable structure of assembly. In particular, reversible goes beyond Flytrap is not known in literature.
Robots for underwater exploration are typically comprised of rigid materials and driven by propellers or jet thrusters, which consume a significant amount power. Large power consumption necessitates sizeable battery, limits the ability to design small robot. Propellers thrusters generate considerable noise vibration, is counterproductive when studying acoustic signals timid species. Bioinspired soft robots provide an approach in compliant that can better adapt uncertain environments take...
The ocean environment has enormous uncertainty due to the influence of complex waves and undercurrents. human beings are limited in their abilities detect utilize marine resources without powerful tools. Soft robots employ soft materials simplify mechanical structures rigid adapt morphology environment, making them suitable for performing some challenging tasks place manual labor. Due superior flexible deformable bodies, underwater have played significant roles numerous applications recent...
Inspired by natural creatures, soft robots possess the unique advantages of large actuation and excellent adaptability. Untethered designs are drawing more attention to researchers, but current research is limited. Also, there an increasing need improve performance bio-mimetic robots. This work describes untethered robotic jellyfish with high mobility that can mimic a jellyfish's performance. The electrode made sandwiching carbon grease between two layers dielectric elastomer film. frame...
A personalized medication regimen provides precise treatment for an individual and can be guided by pre-clinical drug screening. The economical high-efficiency simulation of the liver tumor microenvironment (TME) in a drug-screening model has high value yet challenging to accomplish. Herein, we propose TME with suspended alginate-gelatin hydrogel capsules encapsulating patient-derived multicellular clusters, culture organoids(PDTOs) capsule offers 3D matrix environment mechanical biological...
Dielectric elastomer generators convert mechanical work into electrical energy. Previous tests on membrane inflation generators, however, indicated rather low efficiency energy harvesting. To characterize this phenomenon, an analytical model for viscoelastic dielectric is presented to maximize the conversion. The analysis intended inhomogeneous fields. result indicates that viscoelasticity and instabilities during deflation degrade of conversion specific generated per cycle. Rapid loading...
We report here a novel yet facile approach to prepare white fluorescent polymeric materials based on the aggregation of single chromophore.
Abstract Soft robots driven by stimuli-responsive materials have their own unique advantages over traditional rigid such as large actuation, light weight, good flexibility and biocompatibility. However, the actuation of soft inherently co-exists with difficulty in control high precision. This article presents a artificial muscle robot mimicking cuttlefish fully integrated on-board system including power supply wireless communication system. Without any motors, movements are solely actuated...