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TRACK PLENARY
Track 9: Fluids federal grants (NSF, DARPA, NIH, DOD, DOE, HSARPA, and
AHA) and the University of Pittsburgh.
9-17-2: FLUIDS ENGINEERING PLENARY II
Track 10: Heat Transfer
Tuesday, November 13, 9:00am–9:45am
Room 301, David L. Lawrence Convention Center 10-64-1 HEAT TRANSFER AND THERMAL
Interface Actuations for Micro/Nano Fluidics ENGINEERING PLENARY I
(IMECE2018-90101)
Tuesday, November 13, 8:00am–8:45am
Sung Kwon Cho Room 306, David L. Lawrence Convention Center
University of Pittsburgh
Multiscale Modeling of Nanoparticle Transport:
Abstract: Due to dominant interfacial tensions emerging in Applications to Targeted Drug
micro/nano scale, controlling and actuating of interfaces are (IMECE2018-90102)
of critical importance in many micro/nano fluidic applications.
On a quest to efficient interfacial actuations, Dr. Cho’s group Portnovo S. Ayyaswamy
has been studying and developing many mechanisms and University of Pennsylvania
methods. In this talk, he will present two major topics on
interface actuations and their applications: (1) microswimmer Abstract: This talk will describe methods based on equilibrium
propelled by acoustically oscillating micro bubbles and and non-equilibrium statistical mechanics to construct
(2) electrowetting and dielectrowetting for lab-on-a-chip numerical procedures that enable predictive models in cell
applications. Micro propulsion is a key element in the micro- biology and bioengineering. The models described here have
swimmer that can be potentially applied to navigate inside particular relevance to targeted drug delivery employing
human and animal bodies. Recently, we have developed a nano-sized carriers. The nano particle shape considered here is
micro propulsion method where acoustically excited oscillating either spherical or elliptical. Predictions from the simulations of
bubbles generate streaming flows and propulsion forces. A the models are validated by comparison with experimental data
variety of propelling motions have been achieved by carefully where available.
designing/fabricating devices and controlling exciting conditions.
For the second topic, he will present a variety of droplet Bio: Professor Portonovo S. Ayyaswamy is
manipulations using dielectrowetting that highly localizes liquid one of the most distinguished and
dielectrophoresis to the three-phase contact line. In addition, internationally recognized researcher and
he will also present how to mitigate bio-fouling (biomolecule educator today in the fields of Heat Transfer
adsorption), which is one of the critical hurdles against practical and Thermal Science & Engineering. He is
applications of droplet-based lab-on-a-chip systems. Detailed recognized not only as an outstanding scholar
results and discussions on the above topics will be presented. and educator but also as an immensely impactful contributor to
major developments in industry. He has made many original
Bio: Sung Kwon Cho earned B.S., M.S., and and seminal contributions to the science and art of heat and
Ph.D. from Mechanical Engineering at Seoul mass transfer, particularly in multi-phase flows, phase-change
National University in 1990, 1992 and 1998, heat and mass transfer, droplets and bubbles dynamics,
respectively. After postdoctoral experience ionized arc-plasma transport, bio heat and mass transfer,
at the University of California, Los Angeles and nano-carrier thermal motion and transport. His very long
(UCLA), he joined the faculty of the list of distinguished achievements in heat transfer research,
Department of Mechanical Engineering and Materials Science education, and professional and industry service are
at the University of Pittsburgh in Fall 2003 as an Assistant acknowledged internationally. Dr. Ayyaswamy, Asa Whitney
Professor and then was promoted to Associate Professor with Professor of Dynamical Engineering, University of
tenure in 2009 and to Professor in 2018. Since Dr. Cho Pennsylvania, received his Ph.D. (1971) from UCLA, M.E.
established the “Microfluidic Systems Lab” in 2003, my primary (1967), and M.S. (1965) from Columbia University, and B.E.
research focus is on “micro bubbles, micro drops, and micro (1962) from University of Mysore. He has co-authored the
interfaces as fluidic actuators,” with an emphasis on the highly regarded and extensively subscribed monograph:
development of a variety of micro/bio fluidic transducers and Transport Phenomena with Drops and Bubbles (Springer,
integrated systems that enable us to efficiently handle a wide 1997). He has also contributed a significant chapter, entitled
range of micro/bio substances. The nature of my research is “Introduction to Biofluid Mechanics,” in the book, Fluid
highly interdisciplinary, encompassing fluid mechanics, Mechanics, by P.K. Kundu and I.M. Cohen (Academic Press,
micro/nano manufacturing, interfacial science, electrical MA, 2007). He has served as an expert on numerous NASA,
engineering, and bioengineering. In essence, my research NIH, NSF, NRC, and NAE. He is a Fellow of ASME and
activities heavily rely on micro/nano fabrication or MEMS currently the Editor (2016–2021) of the ASME Journal of Heat
(microelectromechanical system) technology, leveraging Transfer. Dr. Ayyaswamy has been the recipient of the AIAA
development and usage of the micro/nano facilities at the Aerospace Professional of the Year award (1997), ASME Heat
University of Pittsburgh. Overall, Dr. Cho has published over Transfer Memorial Award – Science (2001), ASME Worcester
xl 50 archival journal articles and book chapters in micro/bio Reed Warner Medal (2007), 75th Anniversary Medal (2013) of
fluidics and MEMS areas mostly with financial supports from the ASME Heat Transfer Division, and the ASME-AIChE Max
Jakob Memorial Award (2015), among others. At the University