A5042320938- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials and Mechanics
- Cellular and Composite Structures
- Modular Robots and Swarm Intelligence
- Soft Robotics and Applications
- Acoustic Wave Phenomena Research
- Micro and Nano Robotics
- Semiconductor Lasers and Optical Devices
- Acoustic Wave Resonator Technologies
- Conducting polymers and applications
- Force Microscopy Techniques and Applications
- Nanomaterials for catalytic reactions
- Tactile and Sensory Interactions
- Adhesion, Friction, and Surface Interactions
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Pickering emulsions and particle stabilization
- Stellar, planetary, and galactic studies
- Neuroscience and Neural Engineering
- Neurological disorders and treatments
- Polymer composites and self-healing
- Mechanical stress and fatigue analysis
- Gear and Bearing Dynamics Analysis
- Prosthetics and Rehabilitation Robotics
Nanyang Technological University
2006-2025
Peking University
2010-2025
Georgia Institute of Technology
2025
Tianjin University
2025
Jilin Normal University
2024
Xi'an Technological University
2024
Hong Kong Polytechnic University
2024
Shenyang Institute of Engineering
1993-2024
Anhui Medical University
2024
Northeast Agricultural University
2024
Acoustic waves in a linear time-invariant medium are generally reciprocal; however, reciprocity can break down time-variant system. In this Letter, we report on an experimental demonstration of nonreciprocity dynamic one-dimensional phononic crystal, where the local elastic properties dependent time. The system consists array repelling magnets, and on-site potentials constitutive elements modulated by electromagnets. modulation time breaks time-reversal symmetry opens directional band gap...
The adaptability of natural organisms in altering body shapes response to the environment has inspired development artificial morphing matter. These materials encode ability transform their geometrical configurations specific stimuli and have diverse applications soft robotics, wearable electronics, biomedical devices. However, achieving intricate three-dimensional from a two-dimensional flat state is challenging, as it requires manipulations surface curvature controlled manner. In this...
Abstract Metamaterials composed of different geometrical primitives have properties. Corresponding to the fundamental forms line, plane, and surface, beam-, plate-, shell-based lattice metamaterials enjoy many advantages in aspects, respectively. To fully exploit each structural archetype, we propose a multilayer strategy topology optimization technique design metamaterial this study. Under frame strategy, space is enlarged diversified, freedom increased. Topology applied explore better...
The progress from intelligent interactions and supplemented/augmented reality requires artificial skins to shift the single-functional tactile paradigm. Dual-responsive sensors that can both detect pre-contact proximal events pressure levels enrich perception dimensions deliver additional cognitive information. Previous dual-responsive show very limited utilizations only in proximity or approaching switches. Whereas, inputs environment should be able convey more valuable messages. Herein, a...
Abstract Hydrogel‐based wearable strain sensors have recently gained considerable interest due to their promising applications in real‐time health monitoring and motion detection. However, achieving integrated high‐stretchability, self‐adhesiveness, long‐term water‐retaining property simultaneously hydrogel systems remains a big challenge, which limits electronics. Herein, multifunctional material designed is proposed for that can be manufactured by digital light processing (DLP) 3D printing...
Bio-inspired fibrillar adhesives have received worldwide attention but their potentials been limited by a trade-off between adhesion strength and switchability, size scale effect that restricts the fibrils to micro/nanoscales. Here, we report class of adhesive achieve unprecedented (∼2 MPa), switchability (∼2000), scalability (up millimeter-scale at single fibril level), leveraging rubber-to-glass (R2G) transition in shape memory polymers (SMPs). Moreover, R2G SMP arrays exhibit >1000 (with...
Electronic skins endow robots with sensory functions but often lack the multifunctionality of natural skin, such as switchable adhesion. Current smart adhesives based on elastomers have limited adhesion tunability, which hinders their effective use for both carrying heavy loads and performing dexterous manipulations. Here, we report a versatile, one-size-fits-all robotic adhesive skin using shape memory polymers tunable rubber-to-glass phase transitions. The strength our can be changed from...
Assistive interfaces enable collaborative interactions between humans and robots. In contrast to traditional rigid devices, conformable fabrics with tunable mechanical properties have emerged as compelling alternatives. However, existing assistive actuated by fluidic or thermal stimuli struggle adapt complex body contours are hindered challenges such large volumes after actuation slow response rates. To overcome these limitations, inspiration is drawn from biological protective organisms...
Biological organisms often have remarkable multifunctionality through intricate structures, such as concurrent shape morphing and stiffness variation in the octopus. Soft robots, which are inspired by natural creatures, usually require integration of separate modules to achieve these various functions. As a result, whole structure is cumbersome, control system complex, involving multiple loops finish required task. Here, scales that cover creatures like pangolins fish, we developed robotic...
Ionic polyurethanes with excellent properties have garnered significant attention in flexible wearables. However, it is still challenging to achieve ionic polyurethane ionotronics both mechanical and functionalization. Here, a series of hydroxypropyl viologen (HDPV) cationic-based supramolecular tunable strength (7.6-76.6 MPa), toughness (29.1-285.3 MJ m-3), elongation (499.8%-1102.3%) are developed by balancing HDPV cations dynamic sextuple hydrogen bonds into the polyurethane. Dynamic...
The mechanical properties of ultrathin membranes have attracted considerable attention recently. Nanoindentation based on atomic force microscopy is commonly employed to study properties. We find that the data processing procedures in previous studies are nice approximations, but it difficult for them illustrate precisely. Accordingly, we develop a revised numerical method describe curve properly, by which intrinsic these can be acquired. Combining nanoindentation measurements with method,...
As typical soft materials, hydrogels have demonstrated great potential for the fabrication of flexible sensors due to their highly compatible elastic modulus with human skin, prominent flexibility, and biocompatible three-dimensional network structure. However, practical application wearable hydrogel is significantly constrained because weak adhesion, limited stretchability, poor self-healing properties traditional hydrogels. Herein, a multifunctional sodium hyaluronate (SH)/borax...
Abstract Fabric‐based materials have demonstrated promise for high‐performance wearable applications but are currently restricted by their deficient mechanical properties. Here, this work leverages the design freedom offered additive manufacturing and a novel interlocking pattern to first time fabricate dual‐faced chain mail structure consisting of 3D re‐entrant unit cells. The flexible structured fabric demonstrates high specific energy absorption strength up 1530 J kg −1 5900 Nm ,...
Lattice metamaterials have demonstrated remarkable mechanical properties at low densities. As these architected materials advance toward real-world applications, their tolerance for damage and defects becomes a limiting factor. However, thorough understanding of the fracture resistance mechanisms in lattice metamaterials, particularly emerging shell-based lattices, has remained elusive. Here, using combination situ experiments finite element simulations, we show that with Schwarz P minimal...
Considerable progress in silicon pressure sensors has been made recent years. This paper discusses three types of vacuum-sealed micromachined that represent the present state art this important area. The devices are a capacitive vacuum sensor, surface-micromachined microdiaphragm and resonant sensor. Vacuum sealing for these is accomplished using anodic bonding, films deposited low-pressure chemical vapor deposition, thermal out-diffusion hydrogen, respectively. These emphasize high...
The relationship between the electrical properties and structure evolution of single layer graphene was studied by gradually introducing gallium ion irradiation. Raman spectrums show a structural transition from nano-crystalline to amorphous carbon as escalating degree disorder sample, which is in correspondence with Boltzmann diffusion transport carrier hopping transport. results controllable method tune graphene.