Plenary Lecture
Experimental Diagnosis of Various Biofluid Flow Phenomena
Professor Sang Joon Lee
Center for Biofluid and Biomimic Research
Deptartment of Mechanical Engineering
Pohang University of Science & Technology
Korea
E-mail: sjlee@postech.ac.kr
Abstract: Biological flows are vital for the conservation of life and indispensable commodity of living organisms. Morphological structures of living organisms and biological flow phenomena in nature have been evolved through long history. The basic physics of several biofluid flow phenomena and the hidden secrets of nature such as blood flow in chicken embryos, blood sucking of mosquitoes, and sap flows in plants have been investigated experimentally using advanced flow visualization techniques (X-ray PIV, holographic PTV, time-resolved micro-PIV etc). The biological samples include insects (blood-sucking of mosquitoes, digestive system of butterflies), fishes (zebra fish, planktons), animals (blood flows in chicken embryos or rats) and plants (sap flow in xylem vessels of rice or Arabidopsis). Moreover, gold nanoparticles (AuNPs) were employed as tracer particles to measure instantaneous velocity fields of bio-fluid flows. The developed AuNPs particles transmit the membranes of organisms without destroying the surrounding tissues. Detailed understanding on these biofluid flow phenomena will be used to develop creative biomimic technologies for practical applications in bio-medical science, microfluidics and renewable energy etc.
Brief Biography of the Speaker: Sang Joon Lee: He received his MSc and Ph.D. from Dept. of Mechanical Eng. of KAIST(Korea Advanced Institute of Sci. & Tech.) in 1982 and 1986, respectively. In 1986, he worked as a senior researcher at KIMM. He joined the Dept. of Mechanical Eng. at POSTECH as an assistant professor in 1987 January and he became a full professor in 1999. He was selected as a POSTECH fellow on 2010. His laboratory was designated as a National Research Lab. on 2000 and CRI (Creative Research Initiatives) centre on 2010 by Korea government. His research interests include biofluid flow and biomimetics, microfluidics, flow control and advanced flow visualization.