Micro/nanoscale thermofluidics research group

We investigate transport phenomena in microscopic environments under controlled thermophysical and electric properties including thieir gradients induced by external field (light or electric field).

• Noncontact manipulation of bubble/droplet using light
• Surface reaction enhancment based on electric property gradient
• Development of novel mass transport technology using light and electric field
• Particle sorting by optical radiation pressure

We are working on the development of miniaturised fluidic device that can control or analyse ultrarare samples aiming for Point-of-Care (POC) diagnosis , biomedical analysis, and in-situ environmental analysis.

• Concentration of micro/nanoparticles
• Development of microdevice for individual nanoparticle detection
• Separation of circulating tumor cells (CTCs) from blood for ultraearly cancer detection
• Development of flow cytometer chip

We pursue possibility of an approach based on thermal/fluid sensing to elucidate the mechanism of desease, to evaluate an effect of medical device, and to establish a guideline for medical diagnosis.

• 3D hemodynamic analysis of cerebral aneurysm models
• Evaluation of flow diverter stent procedures for cerebrovascular aneurysm
• Measurement of rolling behaviors of leucocyte on vascular endothelium to elucidate an initial stage of arteriosclerosis
• Measurement of intra/transcellular temperature for a novel hyperthermia using nanomaterials

We are working on the development of leading-edge sensing techniques as experimental tools to quantitate various transport phenomenad.

• Automated measurement for 3D velocity field based on scanning stereoscopic particle image velocimetry (PIV)
• Microfluidic temperature imaging
• Single view 3D velocity measurement in microscopic domain
• Measurement of translational and rotational behaviors of small particles and cells

We investigates control schemes of separated and jet flows under low Reynolds number of the order of 10² to 10³ using state-of-the-art actuators.

• Spatiotemporal characterization of burst-wave-induced discharge plasma actuators (BWPA)
• Control of separated flow in low Re numbers

• On-demand liquid manipulation by photothermal effect
• Flow and heat transfer control using novel passive/active combined devices
• Temperature measurement using fluorescent lifetime