A5041972376- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Heat Transfer
- Laser Material Processing Techniques
- Solar-Powered Water Purification Methods
- Electrowetting and Microfluidic Technologies
- Fluid Dynamics and Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanomaterials and Printing Technologies
- Laser-Ablation Synthesis of Nanoparticles
- Biosensors and Analytical Detection
- Thermal Radiation and Cooling Technologies
- Heat Transfer and Optimization
- Plant Surface Properties and Treatments
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Sensor and Energy Harvesting Materials
- Micro and Nano Robotics
- Nanocluster Synthesis and Applications
- Optical Coatings and Gratings
- Adsorption and Cooling Systems
- Photonic and Optical Devices
- Plasmonic and Surface Plasmon Research
- Advanced Nanomaterials in Catalysis
- Pickering emulsions and particle stabilization
- Ionic liquids properties and applications
- Fluid Dynamics and Mixing
Chongqing University of Posts and Telecommunications
2021-2024
Chongqing University
2016-2021
Abstract Wearable devices integrated with various electronic modules, biological sensors, and chemical sensors have drawn large public attention. Due to their inherent advantages of superior stretchability, elaborate microstructure, high integration multiple functions, low cost, microfluidics are an excellent candidate already been widely used in wearable devices. Well‐designed microfluidic can realize functions devices, including sample collecting, handling storage, analysis, signal...
Benefiting from the noble metal nanoparticle core and organic porous nanoshell, plasmonic metal–organic frameworks (MOFs) become a nanostructure with great enhancement of electromagnetic field high density reaction sites, which has fantastic optical properties in surface plasmon-related fields. In this work, plasmon-driven interfacial catalytic reactions involving p-aminothiophenol to 4,4′-dimercaptoazobenzene (trans-DMAB) both liquid gaseous phases are studied MOF nanoparticles, consist Ag...
With high sensitivity at single molecule level, surface-enhanced Raman scattering (SERS) is considered as an ultrasensitive optical detection technology with broad application prospects in lots of fields. However, the complicated fabrication and unaffordable price SERS substrate are still a roadblock on way to be widely used industry. In this work, spectra commercial laser engraved Teflon (PTFE) film microarray investigated. The wettability surface modulated by engraving make have ability...
The dielectrowetting technique is an important method for controlling surface wettability. Herein, by combining the with high-speed photography, impact of a water drop on adjustable wettability studied. Four different phenomena are identified, and corresponding phase diagram provided. As changes, spreading factor dynamic contact angle differ same Weber number, exhibiting diverse behavior. A bubble entrapped most commonly observed phenomenon, its maximum time dominated number. However,...
A superwicking Ti-6Al-4V alloy material with a hierarchical capillary surface structure was fabricated using femtosecond laser. The basic is an array of micropillars/microholes. For enhancing its action, the micropillars/microholes additionally structured by regular fine microgrooves technique laser-induced periodic structures (LIPSS), providing extremely strong action in temperature range between 23 °C and 80 °C. Due to water drop quickly spreads wicking forms thin film over large area,...
An advanced superwicking aluminum material based on a microgroove surface structure textured with both laser-induced periodic structures and fine microholes was produced by direct femtosecond laser nano/microstructuring technology. The created demonstrates excellent wicking performance in temperature range of 23 to 120 °C. experiments dynamics show record-high velocity water spreading that achieves about 450 mm/s at °C 320 when the undergoes intensive boiling. lifetime classic Washburn...
A novel multifunctional material with efficient wicking and evaporative functionalities was fabricated using hierarchical surface nano-/microstructuring by femtosecond laser micromachining. The created exhibits excellent performance. Our experiments in a wind tunnel demonstrate its good under the conditions of high-temperature airflows. An important finding this work is significantly enhanced evaporation rate compared free water surface. obtained results provide platform for practical...
We investigate the relaxation of liquid bridge after coalescence two sessile droplets resting on an organic glass substrate both experimentally and theoretically. The is found to relax its equilibrium shape via distinct approaches: damped oscillation underdamped relaxation. When viscosity low, shows up, in this approach, undergoes a process until it reaches stable shape. However, if viscous effects become significant, occurs. In case, relaxes state non-periodic decay mode. depth analysis...
Renewable evaporative energy from atmospheric air is a recently emerged research field that demonstrates the great potential for significant savings in conditioning of buildings, data/big-data/integrated-big-data centers, agricultural storage facilities, and greenhouses. Here, we develop method an essential increase harvesting efficiency renewable by enhancing water evaporation rate through shaping air-water interface (AWI) menisci formed superhydrophilic hierarchical surface...
In this study, we examined the impacts of a millimeter sized water drop hitting layer uniformly distributed particles on hydrophilic/hydrophobic glass slide. A ring/disc structure without was formed and modified by two mechanisms: pushout pullback. The factor dominated process when hit hydrophilic slide, while pullback played decisive role during impact hydrophobic surface. rebound surface disc-shaped ring. We showed that ratio effects these factors width were independent from speed, in both...
Enhancing the wicking/evaporative functionality of materials by surface nano/microstructuring is a key approach in creating advanced technologies based on liquid–vapor phase change, particularly field power generation for substantial fuel savings and reducing global greenhouse gas pollution. Despite technological importance, capillary flow liquid undergoing intensive evaporation hot nano/microstructured not well understood. During surface, water confinement undergoes dramatical...
The growth dynamics of bubbles has been extensively studied for several decades. However, a thorough understanding the morphological evolution on pore-patterned surfaces through coalescence adjacent induced by expansion is still lacking. This study aims to quantitatively investigate in drops customized microscale from bottom view under different atmospheric pressures. results demonstrate that status and size can be controlled adjusting pressure are also good agreement with theoretical...
Controllable and directional bubble transport is usually the critical step in applications involving bubbles. However, current strategies either are limited controllability distance or require assistance of a specific external field. Here, we propose strategy for an asymmetric hexagonal cage (ASHC), which works smoothly even under antibuoyancy conditions. The efficiency bubbles can be greatly improved by adjusting structural parameters cage. control depends only on change bubble's volume, so...
For the first time, a trifunctional high-temperature AlN ceramic material that combines extreme wicking, evaporative, and cooling functionalities for enhancing efficiency of evaporation-based technologies was created through engineering hierarchical surface nano/microstructure. The developed interfacially-engineered structure is an array tapered micropillars, which textured with irregular/regular nanostructures. exhibits excellent in temperature range 23–230 °C, both absence presence...
Previous studies of drop impact mainly focus on homogeneous substrates while heterogeneous remain largely unexplored. A convenient preparation strategy stiff is presented in this work, and the such a stiffness-patterned substrate consisting soft spirals surrounded by rigid region systematically investigated. The results show that splash behavior exhibits distinct characteristics from those substrate. Prompt more likely to occur with greater heterogeneity stiffness, which reflected lower...