A5045079459- Advanced Sensor and Energy Harvesting Materials
- Graphene research and applications
- Advanced Materials and Mechanics
- Carbon Nanotubes in Composites
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Silk-based biomaterials and applications
- Electrospun Nanofibers in Biomedical Applications
- Surface Modification and Superhydrophobicity
- Layered Double Hydroxides Synthesis and Applications
- Interactive and Immersive Displays
- Gas Sensing Nanomaterials and Sensors
- Carbon and Quantum Dots Applications
- Pickering emulsions and particle stabilization
- Tactile and Sensory Interactions
- Graphene and Nanomaterials Applications
- Neuroscience and Neural Engineering
- Semiconductor Lasers and Optical Devices
- Adsorption and biosorption for pollutant removal
- Ocular Surface and Contact Lens
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Additive Manufacturing and 3D Printing Technologies
- Micro and Nano Robotics
- Advanced Photocatalysis Techniques
Zhejiang Lab
2021-2024
Ministry of Industry and Information Technology
2019-2022
Center For Remote Sensing (United States)
2022
Zhejiang University
2013-2019
Hangzhou Xixi hospital
2016-2018
Hangzhou Academy of Agricultural Sciences
2017
University of Colorado System
2014
University of Colorado Boulder
2012-2013
University of Illinois Urbana-Champaign
2011
Northwestern University
2009-2010
<sc>l</sc>-Cysteine reduced graphene oxide exhibits high adsorption capability towards anionic indigo carmine and cationic neutral red <italic>via</italic> π–π interactions.
Abstract Developing novel filtering materials with both high permeation flux and rejection rate presents an enticing prospect for oil/water separation. In this paper, robust porous poly(melamine formaldehyde) (PMF) sponges superwettability controlled pore sizes through introducing layered double hydroxides (LDH) SiO 2 electrospun nanofibers are reported. The LDH nanoscrolls endow the sponge inherent superhydrophilicity act as size regulators by overlapping PMF mainframe. This approach allows...
Flexible pressure sensors have attracted considerable attention because of their potential applications in healthcare monitoring and human–machine interactions. However, the complicated fabrication process cos sensing materials limit widespread practice. Herein, a flexible sensor with outstanding performances is presented through an extremely simple cost-efficient process. The are based on low-cost carbon black (CB)@airlaid paper (AP) composites, which just prepared by drop-casting CB...
Multimodal tactile sensors are a crucial part of intelligent human-machine interaction and collaboration. Simultaneous detection proximity, pressure, temperature on single sensor can greatly promote the safety, interactivity, compactness systems. However, severe signal interference complex decoupling algorithms hinder actual applications. Here, this work reports flexible optoelectronic multimodal capable detecting proximity/pressure/temperature by integrating light waveguide an interdigital...
Graphene, like a sheet of paper, folds under mechanical forces. The stability folded graphene, however, depends on the folding direction and resulted graphene stacking. Suspended in liquids freely random ultrasonic stimulations. We determined structure approximately 100 edges by electron nanodiffraction. About 1/3 are armchair zigzag. results explained energetics atomic simulation. zigzag edge has AB stacking, while edge, stacking is achieved some areas small twist.
Strain engineered graphene has been predicted to show many interesting physics and device applications. Here we study biaxial compressive strain in graphene/hexagonal boron nitride heterostructures after thermal cycling high temperatures likely due their expansion coefficient mismatch. The appearance of sub-micron self-supporting bubbles indicates that the is spatially inhomogeneous. Finite element modeling suggests concentrated on edges with regular nano-scale wrinkles, which could be a...
A flyweight and superelastic silane-crossed graphene aerogel was prepared with multiple applications as a high-capacity adsorbent highly sensitive pressure sensor.
The ability to sense heat and touch is essential for healthcare, robotics, human–machine interfaces. By taking advantage of the engineerable waveguiding properties, we design fabricate a flexible optical microfiber sensor simultaneous temperature pressure measurement based on theoretical calculation. exhibits high sensitivity 1.2 nm/°C by measuring shift high-order mode cutoff wavelength in short-wavelength range. In case sensing, shows 4.5% per kilopascal with fast temporal frequency...
Abstract Photoactuators have attracted significant interest for soft robot and gripper applications, yet most of them rely on free-space illumination, which requires a line-of-site low-loss optical path. While waveguide photoactuators can overcome this limitation, their actuating performances are fundamentally restricted by the nature standard fibres. Herein, we demonstrated miniature embedding fibre taper in polydimethylsiloxane/Au nanorod-graphene oxide photothermal film. The special...
A facile and general method to covalently functionalize graphene oxide (GO) with copolymers, using poly(styrene-co-methylmethacrylate) (P(St-co-MMA)) as an example, via miniemulsion polymerization is described in this study. After situ reduction, insulating GO converted conductive reduced-graphene (RGO). P(St-co-MMA) grafted RGO conducting filler was incorporated into immiscible polystyrene (PS)/poly(methyl methacrylate) (PMMA) blend prepare polymer composites (CPCs). The lowest percolation...
The extreme out-of-plane flexibility makes single-layer graphene vulnerable to self-folding, driven by van der Waals interactions. Racket shaped bilayer edges form after which can significantly affect the electrical properties of graphenes. To study self-folding behaviour, a theoretical model based on finite deformation beam theory is established. critical folding lengths for both metastable and stable as well edge profile folded graphene, are given. They all agree very with MD simulations....
We created graphene blisters that cover and seal an annular cylinder-shaped microcavity in a SiO2 substrate filled with gas. By controlling the pressure difference between gas inside outside of microcavity, we switch membrane multiple stable equilibrium configurations. carried out experiments starting from situation where is set equal to prescribed charging pressure, p0 covers cavity like drum, adhered central post surrounding due van der Waals forces. decrease value, pe which causes it...
We study the mechanics of pressurized graphene membranes using an experimental configuration that allows determination elasticity and adhesion energy between a substrate (or other two-dimensional solid) membrane. The test consists monolayer membrane adhered to by surface forces. is patterned with etched microcavities prescribed volume and, when they are covered monolayer, it traps fixed number (N) gas molecules in microchamber. By lowering ambient pressure thus changing difference across...
Abstract Plastic‐based electronics fill the gaps in conventional rigid silicon‐based devices toward applications soft interfaces. However, people future should also consider their potential environmental impact if tons of non‐degradable plastics are applied. Silk fibroin is a superior substrate alternative for development “green” electronics; whereas, brittleness silk films still major limitation impeding practical use. Different from widely reported polyphasic composite approaches, here...
Traditional paper documents with Braille characters and tangible graphics have obvious defects to disseminate knowledge in the information age. Information accessibility is an urgent challenge for blind individuals. Although many types of tactile displays were created different applications, we especially focus on display visually impaired people, which can dynamically generate characters, help obtain conveniently. In this article, present state-of-the-art graphic (GTDs) refreshable (RBDs),...
Abstract Developing stimulus‐responsive materials (SRMs) with reversible, large, and reprogrammable multi‐responsiveness is crucial for soft actuators intelligent devices, which remains challenging. In this study, regenerated silk fibroin hierarchical structure utilized to specially design a multi‐stimuli‐responsive protein film versatile actuators. The freestanding films exhibit notable thermal contraction (−1383 ppm K −1 ) humidity‐responsiveness that can be repeatedly regulated by easy...
We present a unique experimental configuration that allows us to determine the interfacial forces on nearly parallel plates made from thinnest possible mechanical structures, single and few layer graphene membranes. Our approach consists of using pressure difference across membrane bring within ~10-20 nm above circular post covered with SiOx or Au until critical point is reached whereby snaps into adhesive contact post. Continuous measurements deforming an AFM coupled theoretical model allow...
Layered double hydroxides with various morphologies were fabricated on arbitrary substrate surfaces <italic>via</italic> a mussel-inspired intermediate layer, which exhibited versatile and comprehensive performance for water remediation.