A5014374144- Advanced Sensor and Energy Harvesting Materials
- Higher Education and Teaching Methods
- Metallurgy and Material Forming
- Nanomaterials and Printing Technologies
- Fuel Cells and Related Materials
- Advanced Materials and Mechanics
- Mechanical Engineering and Vibrations Research
- Nanopore and Nanochannel Transport Studies
- Conducting polymers and applications
- Tactile and Sensory Interactions
- Advanced Computational Techniques and Applications
- Ion Channels and Receptors
- Simulation and Modeling Applications
- Electrospun Nanofibers in Biomedical Applications
- Metallurgical Processes and Thermodynamics
- Composite Structure Analysis and Optimization
- Power Systems and Technologies
- Dielectric materials and actuators
- Elasticity and Material Modeling
- Electronic Packaging and Soldering Technologies
- Aluminum Alloys Composites Properties
- Engineering Structural Analysis Methods
- 3D IC and TSV technologies
- Energy Harvesting in Wireless Networks
- Structural Engineering and Vibration Analysis
University of Missouri
2018-2024
Civil Aviation Flight University of China
2022-2023
Duke University
2023
Hohai University
2023
State Grid Corporation of China (China)
2012-2021
Zhejiang University
2020
Huazhong University of Science and Technology
2015-2018
State Key Laboratory of Nuclear Physics and Technology
2016-2018
Tongji Hospital
2015-2018
Peking University
2016-2018
Soft on-skin electronics have broad applications in human healthcare, human-machine interface, robotics, and others. However, most current electronic devices are made of materials with limited gas permeability, which constrain perspiration evaporation, resulting adverse physiological psychological effects, limiting their long-term feasibility. In addition, the device fabrication process usually involves e-beam or photolithography, thin-film deposition, etching, and/or other complicated...
Novel transport phenomena through nanopores are expected to emerge as their diameters approach subnanometer scales. However, it has been challenging explore such a regime experimentally. Here, this study reports on polymer pores exhibiting unique selective ionic transport. 12 μm long, parallel oriented fabricated in polyethylene terephthalate (PET) films by irradiation with GeV heavy ions and subsequent 3 h exposure UV radiation. These show selectivity spanning more than 6 orders of...
Significance Point-of-care thermal management (e.g., joule heating, passive cooling) shows promising applications in body temperature regulations, which can improve human comfort and reduce energy consumption. On-skin electronics with joule-heating elements have been reported. However, the research of making on-skin passive-cooling functionalities is still rare. By using multiscale porous polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene as supporting substrates, we developed...
Abstract Mechanically guided, 3D assembly has attracted broad interests, owing to its compatibility with planar fabrication techniques and applicability a diversity of geometries length scales. Its further development requires the capability on‐demand reversible shape reconfigurations, desirable for many emerging applications (e.g., responsive metamaterials, soft robotics). Here, design, fabrication, modeling electrothermal actuators based on laser‐induced graphene (LIG) are reported their...
Significance On-skin electronics are usually fabricated by patterning conventional inorganic materials, novel organic or emerging nanomaterials on flexible polymer substrates. Consequently, the state-of-the-art on-skin suffer from expensive precursor costly fabrication facilities, complex processes, and limited disposability. By using widely accessible pencils papers as tools, we have developed a variety of cost-effective disposable electronic devices, ranging biophysical sensors sweat...
Liquid metal–elastomer composite is a promising soft conductor for skin-interfaced bioelectronics, robots, and others due to its large stretchability, ultrasoftness, high electrical conductivity, mechanical-electrical decoupling. However, it often suffers from deformation-induced leakage, which can smear skin, deteriorate device performance, cause circuit shorting. Besides, antimicrobial property desirable in conductors minimize microbial infections. Here, we report phase separation–based...
Abstract Concepts that draw inspiration from soft biological tissues have enabled significant advances in creating artificial materials for a range of applications, such as dry adhesives, tissue engineering, biointegrated electronics, muscles, and robots. Many tissues, represented by exhibit directionally dependent mechanical electrical properties. However, equipping synthetic with tissue-like anisotropies remains challenging. Here, we present the bioinspired concepts, design principles,...
We herein introduce a lightweight and zero-power smart face mask, capable of wirelessly monitoring coughs in real time identifying proper mask wearing public places during pandemic. The relies on the compact, battery-free radio frequency (RF) harmonic transponder, which is attached to inner layer for detecting its separation from face. Specifically, RF transponder composed miniature antennas passive multiplier made spray-printed silver nanowires (AgNWs) coated with...
Laser-assisted fabrication of conductive materials on flexible substrates has attracted intense interests because its simplicity, easy customization, and broad applications. However, it remains challenging to achieve laser scribing tissue-like soft elastomers, which can serve as the basis construct bioelectronics actuators. Here, we report metallic conductive, photoactive transition metal oxide (molybdenum dioxide) coated with molybdenum chloride precursors, under ambient conditions....
Three-dimensional (3D) cellular graphene structures have wide applications in energy storage, catalysis, polymer composites, electromagnetic shielding, and many others. However, the current strategies to form are only able realize limited structure control hard achieve construction of 3D hierarchical architectures with complex, programmed configurations, limiting design capabilities satisfy various next-generation device applications. In addition, usually exhibits electromechanical...
Three-dimensional (3D) morphing structures with multistable shapes that can be quantitatively and reversibly altered are highly desired in many potential applications ranging from soft robots to wearable electronics. In this study, we present a 4D printing method for fabricating shape-morphing controlled by the applied strains. The printed two-nozzle 3D printer spatially distribute phase change wax microparticles (MPs) elastomer matrix. MPs retain residual strain after prestrained composite...
Synopsis: Lignin transformed into porous graphene via direct laser writing for wearable and ultrasensitive strain sensors human motion monitoring.
To address mechanoreceptive roles of trigeminal ganglion (TG) nerve endings in the inner walls rat anterior eye chambers, we investigated mechanotransduction process and mechanosensitive (MS) channel on somata TG neurons innervating this area vitro. Rat chambers were labeled by chamber injection 1,1'-dilinoleyl-3,3,3',3'-tetramethylindocarbocyanine, 4-chlorobenzenesulfonate (FAST DiI). The neuronal cell bodies voltage clamped using a whole patch-clamp technique, while it was deformed...
Temperature-sensitive hydrogels with mild gel-forming process, good biocompatibility and biodegradability have been widely studied as bioinks biomaterial inks for 3D bioprinting. However, the synthesized via copolymerization of aliphatic polyesters polyethylene glycols low mechanical strength cannot meet needs printing. In this paper, we propose a strategy enhancing by introducing crystallization between blocks to requirements bioprinting inks. A series polycaprolactone-polyethylene...
Abstract Skin exhibits nonlinear mechanics, which is initially soft and stiffens rapidly as being stretched to prevent large deformation‐induced injuries. Developing skin‐interfaced bioelectronics with skin‐inspired mechanical behavior, together multiple other desired features (breathable, antibacterial, sticky), desirable yet challenging. Herein, this study reports the design, fabrication, biomedical application of porous mesh that can simultaneously achieve these features. On one hand,...
Abstract Poly(ethylene terephthalate) (PET) fiber was treated with 60 Co‐ γ ‐ray and grafted acrylic acid (AA). The resulting fibers were further chitosan (CS) via esterification. Afterward collagen (COL) immobilized onto CS‐grafting fibers. antibacterial activity of CS against Staphylococus aureus , Escherichia coli Pseudomonas aeruginosa preserved after COL‐immobilization. After immobilizing COL, the L929 fibroblasts cell proliferation promoted than PET fiber. results indicate that by...
A four-point bend test fixture and a daisy-chained coupon with BGA mounted at 45-degree orientation were developed to evaluate solder joint failure through simple finite element modeling procedure. The bending was performed under various loading speed. BGAs tested have 1.27 mm 1.00 pitches, respectively. One of the significant findings is that joints highly strain rate dependent. At higher rate, failed much less board deflection for some BGAs. This indicates common practice quasi-static not...