A5072485093- Advanced Sensor and Energy Harvesting Materials
- Electrospun Nanofibers in Biomedical Applications
- thermodynamics and calorimetric analyses
- Superconductivity in MgB2 and Alloys
- Iron-based superconductors research
- Heat shock proteins research
- Conducting polymers and applications
- Microfluidic and Bio-sensing Technologies
- Blood properties and coagulation
- Electrohydrodynamics and Fluid Dynamics
- Magnesium Alloys: Properties and Applications
- Physics of Superconductivity and Magnetism
- Electrical and Bioimpedance Tomography
- Microfluidic and Capillary Electrophoresis Applications
- Micro and Nano Robotics
- Thermography and Photoacoustic Techniques
- Neuroscience and Neural Engineering
- Advanced Materials and Mechanics
- Advanced Biosensing Techniques and Applications
- Biosensors and Analytical Detection
- Advanced MEMS and NEMS Technologies
- Pickering emulsions and particle stabilization
- RNA and protein synthesis mechanisms
- Analytical Chemistry and Sensors
University of Electronic Science and Technology of China
2024-2025
The Ohio State University
2009-2011
University of Illinois Chicago
2008
Donghua University
2007
Abstract BACKGROUND: Electrospinning is a powerful and effective method to produce nanofibers. Beads have been observed widely in electrospun products, but effects of solvents, weight concentrations salt additives on the number morphology beads electrospinning process not systematically studied. RESULTS: Both theoretical analysis experimental results show that strongly depend upon additives. Either suitable concentration or additive can completely prevent occurrence process; solvents affect...
Doping effect of diamond nanoparticles on the superconducting properties MgB 2 bulk material has been studied.It is found that transition temperature T c suppressed by diamond-doping, however, irreversibility field H irr and critical current density J are systematically enhanced.Microstructural analysis shows diamond-doped superconductor consists tightly-packed nano-grains (~50-100 nm) with highly-dispersed uniformly-distributed (~10-20 inside grains.High dislocations may take responsibility...
MgB2-diamond nanocomposite superconductors have been synthesized by addition of nano-diamond powder. Microstructural analysis shows that the superconductor consists tightly-packed MgB2 nano-grains (~50-100 nm) with highly-dispersed and uniformly-distributed diamond nanoparticles (~10-20 inside grains. The Jc-H Hiir-T characteristics significantly improved in this nanocomposite, compared to bulk materials prepared other techniques. Also, Jc value 1x104 A/cm2 at 20 K 4 T Hirr 6.4 achieved
This paper reports dynamic behavior of a liquid-state accelerometer prototype, which uses liquid marble as the inertial proof mass. The governing equation is developed in comparison with solid-state mass conventional accelerometer. Numerical analysis and experimental validation show that appropriate parameters, resonance frequency sensor can be designed below 10 Hz, falls into range low body motion. work provides basis for development new paradigm motion sensing reduced fabrication assembly...
Blood viscosity is an important hematological parameter which widely used for the diagnosis of atherosclerosis, thrombosis and stroke. Currently Couette rheometer drives blood flow at a certain shear rate measures from resistance toque towards rotational shaft. Although effective, conventional limited due to complex configuration relatively large sample volume. More important, rotating components hinder miniaturization point-of-care unattended diagnosis. To address this, microchip reported...
Hydrodynamic flow through an array of channels has been utilized to assemble microspheres on a flat surface. The channels, about 6 µm in lateral size, were etched 60 thick silicon wafer using deep reactive ion etching (DRIE). Droplets containing 6–8 fluorescent polystyrene placed the top side horizontally-oriented wafer, while bottom was connected syringe that draws fluid channels. In this way are guided and secured at inlets remain place when suction ceases. This technique, which combines...
This paper reports a liquid droplet based motion sensing system with advantages of simple fabrication, superior biocompatibility and binary signals. The sensor consists dielectric substrate an array microelectrodes patterned by surface micromachining techniques. In this system, ionic behaves as the proof mass which responses to external applied acceleration. A lumped parameter model is built compare frequency response such conventional solid accelerometers. Electrical signals detected are...
This paper reports a simple fabrication approach to create microstructures in electrospun polymer nanofibers. A collector chip with micropatterned electrodes generates electromechanical energy wells above the substrate, which induce selective patterning of nanofibers on collecting surface. work provides sound technology interface nanomaterials larger scaled structures. Particularly, it opens door for developing MEMS components made fibrous nanomaterials. It thus has immediate impacts broad...
This paper reports the use of electrical discharge for fabricating microstructures on electrospun polymer nanofibers. Microchips containing an array conductive microelectrodes are fabricated. Electrical discharges induced by applying high voltage to these microelectrodes. The thermal energy generated micropatterned arcs elevates temperature in localized regions and melts nanofibers close vicinity. Microstructures with minimum line width as small 20 mum demonstrated. method provides a...
This paper reports programmable micropatterning of electrospun nanofibrous materials using micropatterned collecting chips that consist independently microelectrodes. By regulating the local electrical field activated and floating electrodes, chip allows creating pattern fibrous microstructures with controllable orientation. work provides a simple yet highly reliable way to produce micro/nanostructures polymer nanofibers in cost effective manner. It has great potential functional tissue...