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Professor |
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(614) 688-3583 wyslouzil.1@osu.edu
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| Research Interests |
| Aerosol Physics,
Nucleation, Biomedical Aerosol Applications |
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| Education |
B. Sc. (Honors)
Mathematics and Engineering, Queens University,
1980
M.Sc., Chemical Engineering, University of
Alberta, 1985
Ph.D., Chemical Engineering (minor: Applied
Physics), California Institute of Technology, 1992
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| Honors |
| Kenneth T. Whitby Award
for Outstanding Contributions to Aerosol Science
and Technology by a Beginning Scientist, American
Association for Aerosol Research, 2002
WPI Trustees Award for Outstanding Research and
Creative Scholarship, 2001
Japan Society for the Promotion of Science
Fellowship, 1996
NSF Career Award, 1995
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| Faculty
- Barbara Wyslouzil |
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Our research projects all contain some aspect or
application of aerosol science. Currently we
are conducting experiments to probe the
microstructure and composition of
nanodroplets, and to measure nucleation
rates in supersonic nozzles. Models of
multicomponent condensation in supersonic
flows complement the experimental work. Our
group is also active in developing
biological and biomedical applications of
aerosol science.
Nanodroplet Structure
Even in
the liquid state, the composition of
multicomponent nanometer-sized droplets is
highly non-uniform despite their small size
and the relatively short diffusion times.
Surface enrichment in aerosols
affects the heterogeneous chemistry of
aerosol particles as well as nucleation,
growth and evaporation kinetics. Our
research group uses small angle neutron
scattering (SANS) and tunable laser diode
absorption spectroscopy (TDLAS) to probe the
structure and composition of nanodroplets in
order to develop a better understanding of
how molecules segregate within aerosol
droplets.
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Nucleation
and Condensation
In most industrial
applications and in the atmosphere, more
than one condensible species is present, and
the rates of new particle formation and
growth may be severely under predicted if
interactions between the species are
ignored. In our group we use a continuous
flow supersonic nozzle apparatus to explore
nucleation, condensation, and aerosol
evolution at supersaturations and expansion
rates that are comparable to those found in
turbomachinery, jet exhausts, and steam
turbines. By conducting small angle neutron
scattering and pressure trace experiments,
nucleation rates can be measured that are 6
– 8 orders of magnitude higher than in any
other type of equipment.
Biomedical Applications
Our
research group also collaborates actively with
colleagues on bio-related aerosol problems. Our
current research focuses on developing aerosol based
delivery systems for tissue therapy.
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