A5033168217- Microfluidic and Bio-sensing Technologies
- Micro and Nano Robotics
- Innovative Energy Harvesting Technologies
- Molecular Communication and Nanonetworks
- Modular Robots and Swarm Intelligence
- Electrowetting and Microfluidic Technologies
- Aerosol Filtration and Electrostatic Precipitation
- Particle Dynamics in Fluid Flows
- Energy Harvesting in Wireless Networks
- Advanced Sensor and Energy Harvesting Materials
- Microfluidic and Capillary Electrophoresis Applications
- Interactive and Immersive Displays
- Plasma and Flow Control in Aerodynamics
- Cerebrospinal fluid and hydrocephalus
- Pancreatic function and diabetes
University of British Columbia
2023-2024
Myongji University
2017-2021
Soongsil University
2019
This paper presents a novel target drug delivery technology using tandem acoustic bubbles with different volumes embedded in an electromagnetically driven microrobot. For the electromagnetic actuation of microrobot swimming arbitrarily shaped blood vessels, system consisting pair Helmholtz and Maxwell electric coils is fabricated. Using developed system, made cylindrical neodymium magnet successfully demonstrated T-shaped channel. In addition, effects microstreaming induced by on permeation...
This paper describes a new type of electrowetting (EW)-driven digital microfluidic (DMF) platform incorporated with an acoustic bubble for improving the viscous droplet mixing performance on open surface. First, it is experimentally verified that working principle two different actuation methods: EW-driven surface and acoustically driven excitation in aqueous medium, respectively. Then, investigated injected into droplet. When excited inside generates microstreaming at natural frequency...
This paper presents a technology for the removal of bubbles using two mechanisms electric and acoustic actuation. In this study, dielectrowetting was used to separate from surface substrate, while actuation transfer eliminate separated by acoustically exciting them. addition, electrical signals various voltages frequencies were applied patterned electrodes fabricated through standard microfabrication processes in order investigate dynamic behaviors driven bubbles, such as contact angles...
We develop an assay to measure glucose-stimulated insulin secretion from single cells using nanowell-in-microwells. Our results reveal the heterogeneity of cell function for both stem derived β and human islet cells.
This paper proposes an acoustic bubble and magnetic actuation-based microrobot for enhancing multiphase drug delivery efficiency. The proposed device can encapsulate drugs, including liquids, using the two bubbles embedded within microtube. Additionally, actuation of loaded liquid metal, it deliver drugs to target cells. study visualized flow patterns generated by oscillating tube validate release principle. In addition, investigate effect oscillation properties inner on release, amplitude...
This paper presents a new type of underwater energy harvesting technology where pulsating microbubble actuated by the optothermal effect induces periodic vibration piezocantilevers contacted with to generate an electrical power. The proposed can extract mechanical power from light utilizing optothermally microbubbles in aqueous medium and convert for wireless devices. actuation technique is simple but useful tool not only scavengers also potential sensors actuators near future.
Despite the considerable research interest due to practical importance of pervasive wireless sensing systems in a wide range engineering fields, power management remains an arduous task for further development inherent needs self-reliant functionality and portability during their operations. To this end, we here propose new type energy harvesting strategy which optothermally pulsating microbubble is submerged underwater medium. The gives rise periodic vibration piezocantilevers contact,...
This paper presents a new type of switchable liquid shutter for the security and design mobile electronic devices. The operation test is conducted using prototype sample prepared by standard microfabrication processes. consists an opaque absorbing light transparent oil transmitting on two parallel plates with patterned indium titanium oxide electrodes. can be opened closed sequentially applying electrical voltage to electrodes owing electrowetting principle. switching time measured...
This paper presents a new type of acoustic energy harvesting technology where miniature rotor actuated by acoustically oscillating bubbles-induced synthetic jets makes piezocantilevers periodically vibrate to generate electric power. The presented can extract mechanical power from using an driven in aqueous medium and convert the for wireless devices. actuation technique is simple but useful tool not only also potential wave sensors.
This paper presents a new type of physical cleaning technology for removing particles and debris placed in nano/micro structures semiconductor chips. Synthetic jets radiation forces generated from acoustically oscillating bubbles filled microcylinders are utilized efficient controllable tools. The proposed can overcome the limitation current chemical/physical technologies with minimizing usage toxic chemical damage fine