Seminars
Upcoming | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004
Fall 2009November 9, 2009, Monday, 301B Spedding, 10:00 am, Final Defense
Yulin Huang, Lin Group, Department of Chemistry, Iowa State University
"Functionalization of Mesoporous Silica Nanoparticles and Their Applications in Organo-,Metallic and Organometallic Catalysis"
(Lin)
November 11, 2009, Wednesday, 1352 Gilman, 4:10 pm
Dr. Kathleen Kristian, Bakac group, Department of Chemistry, Iowa State University
"Mechanism of Insertion of Alkynes into a Constrained Geometry Zirconaaziridine"
(Bakac)
November 12, 2009, Thursday, 301B Spedding Hall, 10:00 am, Final Defense
Senniang Chen, Lin and Pruski groups, Department of Chemistry, Iowa State University
"Design and synthesis of mixed oxides for biofuel applications"
(Lin/Pruski)
November 13, 2009, Friday, 1352 Gilman, 1:10 pm
Professor Leonard MacGillivray, University of Iowa
http://www.chem.uiowa.edu/faculty/macgillivray/index.html
"Crystal Engineering the Covalent Bond"
(Jenks)
November 18, 2009, Wednesday, 1352 Gilman Hall, 4:10 pm
Dr. Qisheng Lin, Corbett group, Department of Chemistry, Iowa State University
"Non-stoichiometric Phases with Discontinuous Composition Ranges in the CaAu5 - CaAu4Bi - BiAu2 System. Where Spinodal Decomposition Occurs?"
(Corbett)
November 20, 2009, Friday, 301B Spedding, 1:10 pm, Final Defense
Nikola Knezevic, Lin group, Department of Chemistry, Iowa State University
"Functionalized Mesoporous Silica Nanoparticles for Stimuli-Responsive and Targeted Drug Delivery"
(Lin)
November 20, 2009, Friday, 1352 Gilman Hall, 3:10 pm
Professor Michael Bowser, Department of Chemistry, University of Minnesota Twin Cities
http://www.chem.umn.edu/groups/bowser/MikeBowser.html
"Applications of Micro Free Flow Electrophoresis"
In free flow electrophoresis (FFE) a thin stream of sample is continuously introduced into a planar flow chamber. An electric field is applied perpendicularly to the flow through the separation chamber. Analytes are deflected laterally in the electric field according to their electrophoretic mobility giving rise to individual stream paths. FFE has recently been miniaturized into a microfluidic format (uFFE), requiring less sample and reagents, a simplified flow profile and better heat dissipation.
The continuous nature of uFFE separations suggests a number of novel analytical applications. A single separation can be monitored over long periods of time for high sensitivity measurements. We have demonstrated a 20-fold improvement in signal to noise by averaging 500 images over a 2 minute period. uFFE can also be used to continuously monitor a dynamically changing sample. We have demonstrated how introducing a buffer gradient into the uFFE device can be used to efficiently optimize a range of separation conditions or estimate dissociation constants in as little as five minutes. We have also explored introducing a gradient at the sample channel. For example, we have titrated a fluorescently labeled aptamer with increasing concentrations of its protein target. Due to the continuous nature of gradient uFFE, complete coverage of the binding curve is possible in as little as five minutes. Lastly, continuous uFFE separations offer a number of advantages for microscale preparative applications such as aptamer isolation and subcellular organelle analysis.
(Fang)
December 4, 2009, Friday, 1352 Gilman Hall, 1:10 pm
Professor Jan-Uwe Rhode, Department of Chemistry, University of Iowa
http://www.chem.uiowa.edu/faculty/rohde/index.html
"Metal- and Ligand-centered Redox Chemistry: Stabilization of Transition Metals in High Oxidation States and a New Mechanism for the Activation of Dioxygen"
(Bakac)
December 11, 2009, Friday, 1352 Gilman Hall, 1:10 pm
Professor Cora MacBeth, Department of Chemistry, Emory University
http://www.chemistry.emory.edu/faculty/macbeth/MacBeth_HOME.html
"Bioinspired Ligand Systems for Small Molecule Binding and Activation"
(Sadow)
January 22, 2010, Friday, 1352 GIlman Hall, 1:10 pm
Professor Roman Boulatov, Department of Chemistry, University of Illinois Urbana-Champagne
http://chemistry.illinois.edu/faculty/Roman_Boulatov.html
"TBA"
(Zhao)
February 12, 2010, Friday, 1352 Gilman Hall, 1:10 pm
Professor Chris Bielawski, Department of Chemistry, University of Texas at Austin
http://bielawski.cm.utexas.edu/
"N-Heterocyclic Carbenes: New Applications in Catalysis and Polymer Chemistry"
(Jeffries-EL)
February 26, 2010, Friday, 1651 Gilman Hall, 10:00 am
OPEN HOUSE I, Iowa State University
March 5, 2010, Friday, 1352 Gilman Hall, 1:10 pm
Professor Brian Stolz, California Institute of Technology
http://stoltz.caltech.edu/
"Complex Natural Products as a Driving Force for Discovery in Organic Chemistry"
(Larock)
March 11, 2010, Thursday, 301B Spedding Hall, 4:10 pm, Coover Lecture
Professor Emily Carter, The Arthur W. Marks '19 Professor, Department of Mechanical and Aerospace Engineering, Princeton University
http://www.princeton.edu/mae/people/faculty/carter/homepage/people/
"TBA"
(Miller)
March 12, 2010, Friday, 1651 Gilman, 10:00 am
OPEN HOUSE II, Iowa State University
March 26, 2010, Friday, 1352 Gilman, 1:10 pm
Professor Stan Wong, SUNY Stonybrook and Brookhaven National Laboratory
http://www.chem.sunysb.edu:81/faculty/swong.htm
"Chemical Strategies in Nanoscience"
(Lin)
March 26, 2010, Friday, 1352 Gilman, 3:10 pm
Professor Bill Gelbart, The Virus Research Group, Department of Chemistry, UCLA
http://virus.chem.ucla.edu/gelbart
"TBA"
(Song)
April 2, 2010, Friday, 1352 Gilman Hall, 1:10 pm
Professor David Wiemer, Department of Chemistry, University of Iowa
http://www.chem.uiowa.edu/faculty/wiemer/index.html
"TBA"
(Verkade)
April 2, 2010, Friday, 1352 Gilman Hall, 3:10 pm, V.A. Fassel Lecture in Analytical Chemistry
Professor Akos Vertes, Department of Chemistry George Washington University
http://www.gwu.edu/~vertes/
"TBA"
(Lee)
April 7, 2010, Wednesday, Sun Room, Memorial Union, 8:00 pm, Iowa State Presidential Lecture in Chemistry Series
Professor Geraldine L. Richmond, Richard M. and Patricia H. Hoyes Professor, Department of Chemistry, University of Oregon
http://richmondscience.uoregon.edu/
"TBA"
(Gordon & Jeffries-EL)
April 8, 2010, Thursday, 1352 Gilman Hall, 8:00 pm, Gilman Lecture
Professor Dennis A. Dougherty, California Institute of Technology
http://www.its.caltech.edu/~dadgrp/
"TBA"
(Pohl)
April 16, 2010, Friday, 1352 Gilman Hall, 2:10 pm
Department of Chemistry Awards Ceremony, None
"TBA"
(Petrich)
April 23, 2010, Friday, 1352 Gilman Hall, 1:10 pm
Professor Richard Brutchey, University of Southern California
http://chem.usc.edu/faculty/Brutchey.html
"TBA"
(Sadow)
April 30, 2010, Friday, 1352 Gilman Hall, 1:10 pm
Professor Susannah Scott, UC Santa Barbara
http://www.chemengr.ucsb.edu/~ceweb/faculty/scott/
"TBA"
(Sadow)
May 7, 2010, Friday, 1352 Gilman Hall, 2:10 pm
To Be Announced, None
"TBA"
(TBA)
November 11, 2009, Wednesday, 1352 Gilman Hall, 7:30 pm
Professor Ramon M. Barnes, University of Massachusetts
"Environmental Forensics and Analytical Atomic Spectrochemistry"
Environmental forensics is a new subject area relating to courtroom or litigation proceedings and the fact basis for mediated or negotiated transactions involving environmental matters. Environmental forensic investigations often deal with historical release of contaminants and attempt to establish who caused the contamination, when and how the contamination occurred, how extensive the contamination was, what levels of contamination exposure existed, and how valid the test results were. Plasma spectrochemical analysis has been applied to a large variety of environmental and forensic materials to identify and quantify their elemental concentrations, isotopic compositions, and metal compound forms. Specifically, inductively coupled plasma (ICP) atomic emission (ICP-AES) and mass spectrometry (ICP-MS) provide powerful elemental analysis tools for air monitoring, biota analysis, soil and sediment analysis, radionuclide determinations, and water and ecological monitoring. The features of plasma spectrochemistry will be described, and ICP analyses of environmental and forensic materials will be reviewed with emphasis on chemometric data interpretation for source identification. The unique applications of laser ablation (LA-ICP-MS) for microsamples and especially crime scene samples will be demonstrated. Elemental speciation with combined separation and ICP-MS tools also will be introduced.
Biography of Dr. Barnes. Ramon Barnes is director of the University Research Institute for Analytical Chemistry, Professor Emeritus of Chemistry at the University of Massachusetts, editor of the ICP Information Newsletter (1975-), and chairman of the Winter Conference on Plasma Spectrochemistry (1980-). He received a Ph.D. in analytical chemistry from the University of Illinois, Champaign/Urbana, in 1966, an A.M. in chemistry from Columbia University, New York, in 1963, and was a post doctoral research fellow at Iowa State University, Ames, in 1968 and 1969. He served as an Army Captain at NASA Lewis Research Center, Cleveland, from 1966 to 1968. From 1969 to 2000 he taught analytical chemistry and maintained an international research program at the University of Massachusetts, Amherst. He has published more than 300 papers, edited four books, and continues an active research interest in fundamentals and applications of inductively coupled plasma (ICP) discharges for spectrochemical analysis. The University Research Institute for Analytical Chemistry (URIAC) is the research and development division of ICP Information Newsletter, Inc., a not-for-profit corporation established in 1997 to foster science education, research, and study in spectroanalytical chemistry. URIAC provides specialty plasma spectrochemical analysis, method development, training, consulting, and applied research with ICP atomic emission spectrometry and ICP mass spectrometry for ultratrace metal and stable isotope analysis, method development, training, consulting, and applied research with ICP atomic emission spectrometry and ICP mass spectrometry for ultratrace metal and stable isotope analyses in environmental forensics, drug development, medicine, public health, and semiconductor manufacturing.
(Burnett)
