Richard D. Braatz
Contact Information:
e-mail:
phone: (217) 333-5073
fax: (217) 333-5052
293 RAL
MC-712, Box C-3
600 S. Mathews Ave.
Urbana, IL 61801
Millennium Chair
B.S., Oregon State University, 1988
M.S., California Institute of Technology, 1991
Ph.D., California Institute of Technology, 1993
- Doctoral Thesis Prize, Hertz Foundation, 1994
- Young Faculty Award, DuPont, 1995
- Xerox Award for Faculty Research, College of Engineering, University of Illinois, UC, 1999
- Council of Outstanding Early Career Engineers, Oregon State University, 2000
- Donald P. Eckman Award, American Automatic Control Council, 2000
- Ernest W. Thiele Lecturer, University of Notre Dame, 2001
- Beckman Associate, Center for Advanced Study, University of Ilinois, UC, 2002
- University Scholar, University of Illinois, UC, 2002
- CAST Directors' Award, American Institute of Chemical Engineers, 2003
- Curtis W. McGraw Research Award, American Society for Engineering Education, 2004
- Transactions on Control Systems Technology Outstanding Paper Award, Institute of Electrical and Electronics Engineers, 2005
- Antonio Ruberti Young Researcher Prize, Institute of Electrical and Electronics Engineers, 2005
- CAST Outstanding Young Researcher Award, American Institute of Chemical Engineers, 2005
- Lindsay Distinguished Lecturer, Texas A&M, 2006
- Excellence in Process Development Research Award, American Institute of Chemical Engineers, 2006
- Millennium Chair, University of Illinois, UC, 2006
- Fellow, Institute of Electrical and Electronics Engineers, 2007
- Fellow, American Association for the Advancement of Science, 2008
- Journal of Process Control Prize Paper Award (for a survey), International Federation of Automatic Control, 2008
- Journal of Process Control Prize Paper Award (for theory), International Federation of Automatic Control, 2008
- Fellow, International Federation of Automatic Control, 2008
- Collaboration Success Award, Council for Chemical Research, 2009
Multiscale Systems and Control
New applications in materials, medicine, and computers are being discovered where
the control of events at the molecular and nanoscopic scales is critical to product
quality, although the primary manipulation of these events during processing
occurs at macroscopic length scales. This drives our research program in the
creation of methods for the simulation, design, and control of multiscale systems
that have length scales ranging from the atomistic to the macroscopic.
Materials
Applications include lithium-ion batteries, nanobiosensors, and semiconductor devices. Novel electrodes with spatially varying microstructure are being designed to increase energy utilization in lithium-ion batteries. Mechanistic models are being developed for reaction networks involving organic chemicals and single-walled carbon nanotubes, for use in the design of nanotube-based biosensors with enhanced selectivity and sensitivity. In semiconductor devices, mechanistic models are used to optimize the manipulation of surface defects during rapid thermal annealing to decrease transistor junction depths while increasing electrical activation. These materials applications are in collaboration with experimentalists who validate model predictions and system designs.
Biomedical/pharmaceutical
Applications include the modeling and design of biodegradable polymeric drug
delivery systems (in collaboration with Prof. D. Pack) and the formation of
high quality protein or pharmaceutical crystals from solution. For drug delivery,
our goal is to model the relationship between the polymer geometry, molecular
weight distribution, and microstructure to the release of drugs or growth factors,
and to use these models to optimally design drug delivery systems to achieve
a desired temporal and spatial release. In our crystallization effort, we are
developing an integrated approach to control crystal formation that includes
(i) simulating the nucleation, growth, and aggregation of crystals including
the effects of micro- and macromixing, (ii) utilizing video microscopy, laser
backscattering, ATR-FTIR, and Raman spectroscopy for the in-situ measurement
of the size, shape, and polymorphism of crystals during crystal formation, and
(iii) designing algorithms to control the properties of the product crystals.
Selected Publications
N. C. S. Kee, R. B. H. Tan, and R. D. Braatz, "Selective crystallization of the metastable alpha-form of L-glutamic acid using concentration feedback control," Crystal Growth & Design, 9, 3044-3051 (2009).
X. Y. Woo, R. B. H. Tan, and R. D. Braatz, "Modeling and computational fluid dynamics-population balance equation-micromixing simulation of impinging jet crystallizers," Crystal Growth & Design, 9, 156-164 (2009).
Z. Zheng, R. Stephens, R. D. Braatz, R. C. Alkire, and L. R. Petzold, "A hybrid multiscale kinetic Monte Carlo method for simulation of copper electrodeposition," Journal of Computational Physics, 227, 5184-5199 (2008).
C. T. M. Kwok, K. Dev, E. G. Seebauer, and R. D. Braatz, "Maximum a posteriori estimation of activation energies that control silicon self-diffusion," Automatica, 44,
2241-2247 (2008).
N. Nair, W. -J. Kim, R. D. Braatz and M. S. Strano, "Dynamics of surfactant-suspended
single-walled carbon nanotubes in a centrifugal field," Langmuir, 24,
1790-1795 (2008)
E. G. Seebauer, K. Dev, M. Y. L. Jung, R. Vaidyanathan, C. T. M. Kwok,
J. W. Ager, E. E. Haller, and R. D. Braatz, "Control of defect concentrations
within a semiconductor through adsorption," Physical Review Letters,
97, 055503 (2006).
E. J. Hukkanen, J. A. Wieland, A. Gewirth, D. E. Leckband and R. D. Braatz, "Multiple-bond kinetics from single-molecule pulling experiments: Evidence for multiple NCAM bonds," Biophysical Journal, 89, 3434-3445 (2005).
