The Mork Family Department of Chemical Engineering and Materials Science has announced a second keynote lecture series and named it for the late Cornelius J. Pings, a prominent chemical engineer and a renowned academic administrator.
Neal Pings served with distinction as provost at both Caltech, his alma mater, and at USC, where he held the chief academic officer position from 1981 to 1993, a period when the university achieved great gains in stature. He left USC to become president of the Association of American Universities (AAU), the Washington, D.C.-based representative of the nation’s top 60 research universities, and served there until 1998.
Pings was awarded the Presidential Medallion, USC’s highest honor, and Caltech’s Distinguished Alumnus Award. He was a member of the National Academy of Engineering and the American Academy of Arts and Sciences.
Professor Mary F. Wheeler
Director, Center for Subsurface Modeling
Institute for Computational Engineering and Sciences
The University of Texas at Austin
“Fluid-filled Fracture Propagation Using Phase Field”
In this presentation, we discuss current research on fluid-filled fracture propagation using a phase-field diffusive zone algorithm and coupling to a reservoir simulator. Phase field modeling has been used for the past decade in modeling fractures in an elastic medium. Recently in collaboration with Andro Mikelic and Thomas Wick we extended this method to pressurized fractures in a poroelastic medium. This thermodynamically consistent approach captures several characteristic features of crack propagation such as joining, branching and non-planar propagation in heterogeneous porous media as well as fracture width evolution and fracture-length propagation. Here we also describe a technique for coupling phase-field to a fractured poroelastic reservoir simulator. We present two and three-dimensional numerical tests to benchmark, compare and demonstrate the predictive capabilities of the fracture propagation model as well as the proposed coupling scheme.
Time and Location
January 21, 2015
Time: 11:15 A.M.
Doheny Library Room DML 240
A reception will follow in DML 240 Breezeway
Mary Fanett Wheeler was born in 1938 in Cuero, Texas, near San Antonio. She had always been interested in mathematics and took a course in it ‘just for fun’. She ended up with enough courses to graduate in mathematics as well.” Mary Wheeler earned a double major in social sciences and mathematics in 1960 at the University of Texas. She received an M.A. from the University of Texas in 1963, and her Ph.D. (1971) from Rice University (when her daughter was 3 years old.) Her Ph.D. thesis was on “A Priori L2 Error Estimates for Galerkin Approximations to Parabolic Partial Differential Equations”. She began teaching at Rice University in 1971, rising through the ranks until in 1988 she was appointed as Noah Harding Professor of Computational and Applied Mathematics (first woman to hold such a position at Rice.)
Since 1995 she has held the Ernest and Virginia Cockrell Chair in Engineering in the Department of Mathematics at the University of Texas in Austin. She works on numerical solutions of partial differential equations, parallel computation, and modeling flow in porous media. She has written over 200 research papers and technical reports, and authored 7 books.
Professor Kristi S. Anseth
Department of Chemical Biological Engineering
University of Colorado (Boulder, CO)
“Engineering hydrogels as synthetic extracellular
matrices for cell culture and tissue regeneration”
Methods for culturing mammalian cells in a biologically relevant context are increasingly needed to study cell and tissue physiology, expand and differentiate progenitor cells, and to grow replacement tissues for regenerative medicine. Two dimensional culture has been the paradigm for in vitro cell culture; however, evidence and intuition suggest that cells behave differently when they are isolated from the complex architecture of their native tissues and constrained to petri dishes or material surfaces with unnaturally high stiffness, polarity, and surface to volume ratio. As a result, biologists are often faced with the need for a more physiologically relevant 3D culture environment, and many researchers are realizing the advantages of hydrogels as a means of creating custom 3D microenvironments with highly controlled chemical, biological and physical cues. Further, the native extracellular matrix (ECM) is far from static, so ECM mimics must also be dynamic to direct complex cellular behavior. In general, there is an un-met need for materials that allow user-defined control over the spatio-temporal presentation of important signals, such as integrin-binding ligands, growth factor release, and biomechanical signals. Developing such hydrogel mimics of the ECM for 3D cell culture is an archetypal engineering problem, requiring control of numerous properties on multiple time and length scales important for cellular functions. New materials systems have the potential to significantly improve our understanding of how cells receive information from their microenvironment and the role that these dynamic processes may play in controlling the stem cell niche to cancer metastasis. This talk will illustrate our recent efforts to advance hydrogel chemistries for 3D cell culture and dynamically control biochemical and biophysical properties through orthogonal, photochemical reaction mechanisms.
Time and Location
Thursday, February 13, 2014
Seminar at 2:00 p.m.
Doheny Library Room, DM 240 (Lecture Hall)
A reception will follow.
KRISTI S. ANSETH is a Howard Hughes Medical Institute Investigator and Distinguished Professor of Chemical and Biological Engineering at the University of Colorado at Boulder. Dr. Anseth came to CU after earning her B.S. degree from Purdue University in 1992 and her Ph.D. degree from the University of Colorado in 1994 and completing post-doctoral research at MIT as an NIH fellow. Her research interests lie at the interface between biology and engineering where she designs new biomaterials for applications in drug delivery and regenerative medicine. Dr. Anseth’s research group has published over 250 publications in peer-reviewed journals and presented over 200 invited lectures in the fields of biomaterials and tissue engineering. She was the first engineer to be named a Howard Hughes Medical Institute Investigator and received the Alan T. Waterman Award, the highest award of the National Science Foundation for demonstrated exceptional individual achievement in scientific or engineering research. Dr. Anseth is an elected member of the National Academy of Engineering (2009), the Institute of Medicine (2009), and the National Academy of Sciences (2013). She is also a dedicated teacher, who has received four University Awards related to her teaching, as well as the American Society for Engineering Education’s Curtis W. McGraw Award. Dr. Anseth is a Fellow of the American Association for the Advancement of Science, the American Institute for Medical and Biological Engineering, and the Materials Research Society. She serves on the editorial boards or as associate editor of Biomacromolecules, Journal of Biomedical Materials Research — Part A, Acta Biomaterialia, Progress in Materials Science, and Biotechnology & Bioengineering.
Professor Frank S. Bates
Department of Chemical Engineering and Materials Science
University of Minnesota (Minneapolis)
“Block Copolymers – Designer Soft Materials”
Soft materials constitute a familiar class of condensed matter. Representative examples include all types of polymers, colloidal dispersions, foams, and biological tissue such as collagen and spider silk. Block copolymers are a versatile form of macromolecules that provide unparalleled material design opportunities through the coupling of distinct polymer blocks that incorporate different physical properties. Modern synthetic chemical methods afford access to an unlimited number of architectural variations that begin with simple diblocks and progress through a dizzying array of graft and branched geometries. This lecture will focus on relatively simple molecular designs – linear macromolecules that contain two or three different block types strategically sequenced to create useful multiblock molecular architectures. A rich array of nanostructured phases resulting in tailored rheological and mechanical properties have been achieved in these materials. Block copolymers present unique characterization challenges while offering a plethora of technical applications. Examples that illustrate the synergistic use of self-consistent field theory along with transmission electron microscopy, small-angle x-ray and neutron scattering, dynamic mechanical spectroscopy and tensile testing will be discussed in the context of research that has led to commercial products.
Time and Location
December 11, 2012, 2pm
A reception will follow in the Gerontology Patio
Frank S. Bates is a Regents Professor and Head of Chemical Engineering and Materials Science at the University of Minnesota. He received a B.S. in Mathematics from SUNY Albany in 1976, and M.S. and Sc.D. degrees in Chemical Engineering from MIT in 1979 and 1982. Between 1982 and 1989 Bates was a member of the technical staff at AT&T Bell Laboratories then joined the University of Minnesota as an Associate Professor. He was promoted to Professor in 1991, named a Distinguished McKnight University Professor in 1996, appointed Department Head in 1999, and became a Regents Professor in 2007. Professor Bates conducts research on a range of topics related to polymers, with a particular focus on the thermodynamics and dynamics of block copolymers and blends. In 1988 Bates was named a Distinguished Member of the Technical Staff at Bell Labs, in 1989 he received the John H. Dillon Medal and in 1997 the Polymer Physics Prize, both from the American Physical Society where he is a Fellow. He won the 2004 David Turnbull Lectureship Award from the Materials Research Society, shared the ACS Cooperative Research Award in 2008, was awarded the 2008 Sustained Research Prize by the Neutron Scattering Society of America and he is the 2012 Institute Lecturer of the AIChE. Bates was elected to the US National Academy of Engineering in 2002. In 2005 he was named a fellow of the American Association for the Advancement of Science and in 2010 was elected to the American Academy of Arts and Science.
Professor Mark A. Reed
Depts. of Electrical Engineering and Applied Physics
“Integrated Bioelectronic Systems”
High performance microelectronic systems and bioelectrochemical systems are both highly developed, complex systems capable of advanced signal processing and computing – yet are fundamentally different at nearly every level (mechanism, device, architecture, etc). A major step in understanding these differences will be the ability to interface between these systems. This talk will review the recent progress, the outstanding scientific challenges, and some exciting potential applications in this rapidly growing new field.
Time and Location
Thursday, February 2nd, 2012
Seminar at 12:30 p.m.
Olin Hall (OHE) Room 122
Prof. Mark A. Reed received his Ph.D. in Physics from Syracuse University in 1983, after which he joined Texas Instruments. In 1990 Mark joined Yale University where he holds the Harold Hodgkinson Chair of Engineering and Applied Science. He was chairman of the Department of Electrical Engineering from 1995 to 2001. He is presently the Associate Director of the Yale Institute for Nanoscience and
Quantum Engineering. Mark’s research activities have included the investigation of electronic transport in nanoscale and mesoscopic systems, artificially structured materials and devices, molecular scale electronic transport, plasmonic transport in nanostructures, and chem/bio nanosensors. Mark is the author of more than 180 professional publications and 6 books, has given over 20 plenary and over 300 invited talks, and holds 25 U.S. and foreign patents on quantum effect, heterojunction, and molecular devices. He is the Editor in Chief of the journal Nanotechnology, an Editor for IEEE Transactions Electron Devices, and holds numerous other editorial and advisory board positions. Mark has been elected to the Connecticut Academy of Science and Engineering and Who’s Who in the World. His awards include; Fortune Magazine “Most Promising Young Scientist” (1990), the Kilby Young Innovator Award (1994), the Fujitsu ISCS Quantum Device Award (2001), the Yale Science and Engineering Association Award for Advancement of Basic and Applied Science (2002), Fellow of the American Physical Society (2003), the IEEE Pioneer Award in Nanotechnology (2007), and Fellow of the Institute of Electrical and Electronics Engineers (2009).
Professor Alexis Bell
The Dow Professor of Sustainable Chemistry
Dept. of Chemical Engineering
Tuesday, April 24, 2012, 12:30pm – 1:50pm
Professor Bell’s research focuses on understanding the fundamental relationships between the structure and composition of heterogeneous catalysts and their performance. He studies reaction mechanisms to identify factors limiting the activity and selectivity of catalysts. Reaction systems being investigated by his group include the synthesis of oxygenated compounds from COx (x = 1, 2), the conversion of alkanes to olefins and oxygenated products under oxidizing conditions, and the reduction of nitric oxide under oxidizing conditions. The objectives of his program are pursued through a combination of experimental and theoretical methods. Spectroscopic techniques, including IR, Raman, NMR, UV-Visible, and EXAFS, are used to characterize catalyst structure and adsorbed species under actual conditions of catalysis. Isotopic tracers and temperature-programmed desorption and reaction techniques are used to elucidate the pathways via which catalyzed reactions occur. Quantum chemical calculations are conducted to define the structure and energetics of adsorbed species and the pathways by which such species are transformed. The combined use of theory and experimental methods enables the attainment of a deeper understanding of the core issues of interest than can be achieved by the use of either approach alone.
Professor; Faculty Senior Scientist, LBNL; B.S., Massachusetts Institute of Technology (1964) Sc.D., Massachusetts Institute of Technology (1967). Curtis W. McGraw Award for Research, American Association of Engineering Education; the Professional Progress and R. H. Wilhelm Awards, the American Institute of Chemical Engineers; Paul H. Emmett Award in Fundamental Catalysis, Catalysis Society; National Academy of Engineering (1987) Fellow of the American Association for the Advancement of Science (1988), the ACS Award for Creative Research in Homogeneous or Heterogeneous Catalysis, American Chemical Society (2001); Honorary Professor, Siberian Branch of the Russian Academy of Sciences (2001), William H. Walker Award of the AIChE (2005), Elected to the American Academy of Arts and Sciences (2007).