A5068135140- Micro and Nano Robotics
- Microfluidic and Capillary Electrophoresis Applications
- Microfluidic and Bio-sensing Technologies
- Nanopore and Nanochannel Transport Studies
- Molecular Communication and Nanonetworks
- Biosensors and Analytical Detection
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Fluid Dynamics and Turbulent Flows
- Advanced biosensing and bioanalysis techniques
- Carbon Nanotubes in Composites
- Plasma and Flow Control in Aerodynamics
- Force Microscopy Techniques and Applications
- Advanced Sensor and Energy Harvesting Materials
- Innovative Microfluidic and Catalytic Techniques Innovation
- Advanced Sensor Technologies Research
- Modular Robots and Swarm Intelligence
- Advanced Fiber Optic Sensors
- Graphene research and applications
- Heat Transfer Mechanisms
- Advanced Biosensing Techniques and Applications
- Molecular Junctions and Nanostructures
- Aerodynamics and Acoustics in Jet Flows
- 3D Printing in Biomedical Research
- Microwave Engineering and Waveguides
University of Arkansas at Fayetteville
2015-2024
Chinese Academy of Sciences
2008-2019
Shenyang Institute of Automation
2010-2019
University of California, Los Angeles
1996-2018
Academia Sinica
2017
State Key Laboratory of Robotics
2015
University of Chinese Academy of Sciences
2013
Kanyakumari Government Medical College
2011
Cornell University
2006
California Institute of Technology
1996-2003
Highly deformable and photoresponsive smart actuators are attracting increasing attention. Here, a high concentration of graphene is dispersed in polydimethylsiloxane (PDMS) by combining the advantages various dispersion methods. The composite pure PDMS layers used to fabricate bilayer with capacity for rapid deformation. fabricated exhibit novel interesting properties. A actuator containing 30 wt % can be deflected 7.9 mm horizontal direction under infrared laser irradiation. influences...
Nanorobots capable of active movement are an exciting technology for targeted therapeutic intervention. However, the extensive motion range and hindrance blood-brain barrier impeded their clinical translation in glioblastoma therapy. Here, a marsupial robotic system constructed by integrating chemical/magnetic hybrid nanorobots (child robots) with miniature magnetic continuum robot (mother robot) intracranial cross-scale targeting drug delivery is reported. For primary on macroscale, enters...
Microhot-film shear-stress sensors have been developed by using surface micromachining techniques. The sensor consists of a suspended silicon-nitride diaphragm located on top vacuum-sealed cavity. A heating and heat-sensing element, made polycrystalline silicon material, resides the diaphragm. underlying vacuum cavity greatly reduces conductive heat loss to substrate therefore increases sensitivity sensor. Testing has conducted in wind tunnel under three operation modes-constant current,...
In this research a DNA aptamer, which was selected through SELEX (systematic evolution of ligands by exponential enrichment) to be specific against the H5N1 subtype avian influenza virus (AIV), used as an alternative reagent monoclonal antibodies in impedance biosensor utilizing microfluidics flow cell and interdigitated microelectrode for detection AIV. The gold surface embedded modified using streptavidin. biotinylated aptamer then immobilized on electrode biotin–streptavidin binding....
Micro/nanomotors (MNMs), which propel by transforming various forms of energy into kinetic energy, have emerged as promising therapeutic nanosystems in biomedical applications. However, most MNMs used for anticancer treatment are only powered one engine or provide a single strategy. Although double-engined micromotors synergistic therapy can achieve more flexible movement and efficient efficacy, their design remains challenging. In this study, we facile preparation method to develop...
Superhydrophobic microrobots that can swim efficiently and rapidly on water under the action of external stimuli have attracted significant research attention for various applications. However, most studies superhydrophobic focused single-stimulus driving modes, which limit motion functional applications in complex aquatic environments. Therefore, multistimuli-responsive are capable drifting through light, magnetic, chemical control were developed this study. The stability environmental...
A new MEMS shear stress sensor imager has been developed and its capability of imaging surface distribution demonstrated. The consists multi-rows vacuum-insulated sensors with a 300 /spl mu/m pitch. This small spacing allows it to detect flow patterns that could not be directly measured before. high frequency response (30 kHz) the under constant temperature bias mode also used in Reynolds number turbulent studies. measurement results fully agree well numerical experimental previously published.
Inflatable and other membrane structures are expected to become increasingly important in space exploration due their light weight low cost. Unlike rigid structures, these typically fabricated of flexible polymers require internal pressurization achieve structural integrity. Due this, inflatable vulnerable the harsh environment catastrophic failure from vibration. A MEMS-based health monitoring control system (HMCS) for inflatables has been developed at University Arkansas. Fabricated mostly...
Trapping and transporting algal cells with intrinsic motility are realized, the trapped live can form a micrometer-sized motor array.
Micro hot-film shear-stress sensors have been designed and fabricated by surface micromachining technology which is compatible with IC technology. A polysilicon strip, 2 /spl mu/m/spl times/80 mu/m, deposited on top of a thin silicon nitride film functions as the sensor element. By using sacrificial-layer technique, cavity (a vacuum chamber about 300 mtorr), 200/spl times/200/spl times/2 placed between substrate. This significantly increases sensitivity reducing heat loss to The frequency...
A fully automated microfluidic-based detection system for the rapid determination of insulin concentration through a chemiluminescence immunoassay has been developed. The microfluidic chip used in is double-layered polydimethylsiloxane device embedded with interconnecting micropumps, microvalves, and micromixer. At high injection rate developing solution, signal can be excited measured within short period time. integral value light to determine samples, results indicate that measurement...
This paper reports the development of micromachined thermal shear-stress sensors for underwater applications. The sensor is a polysilicon resistor sitting atop vacuum-insulated nitride diaphragm. Special challenges measurements, such as waterproof coating and minimization pressure crosstalk, have been addressed. More rigid diaphragms than aerial are implemented to increase operating range reduce with cost larger power consumption lower sensitivity. Sensors different diaphragm dimensions...