Department of Chemistry and Biochemistry Seminars
Friday, August 31
Dr. Matthew Kieber-Emmons from the Department of Chemistry at the University of Utah will present a seminar titled “Mechanistic Insight into Water Oxidation with Copper.” Byker Auditorium at 3:10 pm. Prof. Mike Mock is the host.
Friday, Sept 7
Dr. Sean Roberts from the Department of Chemistry at the University of Texas -Austin will be here. Professors Walker and Grumstrup are the hosts.
Monday, Sept 10
Ms. Amanda Byer will defend her Ph.D in Biochemistry beginning with a presentation titled "Radical Chemistry - Mechanism and Function in the Radical SAM Superfamily." Amanda's advisor is Prof. Joan Broderick. 1 pm in the Byker Auditorium.
Friday, Sept 21
Dr. Gerhard Koenig, Research Associate, Institute for Quantitative Biomedicine, Rutgers University will present “Quantitative predictions of chemical equilibria based on computer simulations”. Byker Auditorium at 3:10 pm. Prof. Roland Hatzenpichler host.
Friday, Sept 28 -
Dr. Francisco Asturias, from the School of Medicine, Biochemistry and Molecular Genetics, University of Colorado will present "Cryo-EM Studies of Transcriptional Regulation by Mediator." Byker Auditorium at 3:10 pm. Prof. Martin Lawrence host.
Friday, Oct 5- open
Friday, Oct 12
Dr. Tom Autrey, Staff Scientist at PNNL will present "Using calorimetry to understand heterogeneous and homogeneous reactions." Byker Auditorium at 3:10 pm. Prof. Nicholas Stadie is the host.
Abstract: Calorimetry is generally recognized as an experimental technique to obtain thermodynamic data for chemical reactions, however, time dependent measurements of the heat flow can provide additional insight into kinetics of chemical transformation. Our research has ranged from measuring the kinetics and thermodynamics of reactions of reactive intermediates on a microsecond time scale to reactions that occur over days. I look forward to sharing how we use time-resolved reaction calorimetry to gain insight into both heterogeneous and homogeneous catalytic transformations on compounds and materials that show promise for energy storage applications.
Friday, Oct 19
Dr. Samuel Gellman from the Dept. of Chemistry at the Univeristy of Wisconsin-Madison will present be "Functional Foldamers." Prof. Mary Cloninger is the host. Byker Auditorium at 3:10 pm. This seminar is sponsored by the Grieco Distinguished Lectureship Series.
Monday, Oct 22
Ph.D. Defense from Greg Prussia. The title of his seminar is "Delineating the determinants of carboxylation in 2-ketopropyl coenzyme M oxidoreductase/carboxylase: A unique CO2-fixing flavoenzyme." 9 am Byker. Greg is advised by Prof. John Peters.
Friday, Oct 26
Dr. John Kozarich. Byker Auditorium at 3:10 pm. Prof. Joan Broderick is the host.
Friday, Nov 2
Kevin Hammonds, Assistant Professor in Civil Engeineering at MSU will present "From Avalanches to Ice Sheets: The Material Properties of Snow & Ice." Byker Auditorium at 3:10 pm.
When studied from a materials science perspective, large-scale and naturally-occurring phenomena, such as how an ice sheet viscously deforms or how an avalanche releases, can be understood through laboratory-scale investigations of the thermal and mechanical history of the snow and/or ice and its microstructure. To derive these microstructural properties, many advanced materials characterization techniques can be employed, including the use of cross-polarized optical microscopy, micro-CT, scanning electron microscopy (including EBSD & EDS), and Raman spectroscopy. With the application of these techniques combined with relatively small-scale laboratory experiments, many of the peculiar properties of ice and snow can begin to be unraveled. Presented in this seminar, is an overview of the materials characterization techniques that are currently being applied to snow and ice at MSU, as well as the results from several previous and ongoing laboratory experiments that will further illustrate its many fascinating complexities. These experiments will include results related to the crystallographic structure of ice, the effects of soluble impurities in ice, and the thermophysical properties of ice/snow interfaces…all of which are critical components for better understanding ice sheets and avalanches in our natural world.
Monday, Nov 5
Ms. Melodie Machovina will defend her Ph.D in Biochemistry beginning with a presentation titled "Enzymatic strategies for harnessing and controlling the oxidative power of O2." Melodie's research advisor is Prof. Jen DuBois, ABB 138 at 3 pm.
Friday, Nov 9
Dr. Robert Smith from University of Montana, Dept. of Computing. Byker Auditorium at 3:10 pm. Prof. Brian Bothner host.
Friday, Nov 16
Prof. Cecily Ryan (MSU M&IE) will present a seminar titled “Tailoring the mechanical and electrical properties of biopolymer blends via the incorporation of carbon nanofillers.”
Biobased fillers, such as bio-derived cellulose, lignin byproducts, and biochar, can be used to modify the thermal, mechanical, and electrical properties of polymer composites. We are interested in using char from lignin and agricultural byproducts to enhance the thermal and electrical conductivities in biopolymer composites. Biochar processed from these feedstocks can potentially serve as a bioderived graphitic carbon alternative for certain composite applications. In this work, we investigate a blended biopolymer system, polyhydroxybutyrate-co-hydroxyvalerate (PHBV) with polylactide (PLA), to control the partitioning of electrically conductive nanofiller, carbon black (CB) and biochar. CB, a commonly used petroleum-derived functional nanofiller, serves as a comparison for our work on the incorporation of biochar into composites. Kraft lignin is the feedstock for the biochar. Particulate affinity for the polymer phases affects nanofiller dispersion. I will present surface energy calculations and experimental results for phase-separation and nanofiller phase affinity in this system and how that modifies the percolation behavior in a phase-separated system. I will also show our initial results for electrical conductivity and mechanical behavior of the mixed-phase nanofilled composites.
Monday, Nov 19
Ms. Danica Walsh (Livinghouse lab) will present her 4th year graduate student research seminar in the Byker Auditorium at 11 am. The title of her presentation is "Design, Synthesis and Evaluation of Prodrugs to Control Biofilms."
Friday, Nov 30
Dr. Ohyun Kwon from UCLA. Byker Auditorium at 3:10 pm. Prof. Sharon Neufeldt host.
Title: Phosphine Organocatalysis
Soft nucleophilic phosphinocatalysis has been known since the 1960s as a result of the pioneering work of Horner, Price, Rauhut−Currier, and Morita. In the 1990s, Trost and Lu made important discoveries, reporting isomerization, umpolung addition, and [3+2] cycloaddition. Nonetheless, it was not until the 2000s that the area of phosphinocatalysis began to flourish. My group, through careful analysis of the mechanism of the phosphinocatalysis reactions, has demonstrated over two dozen new reactions facilitated by phosphine catalysts. The results are a one-step conversion of simple acyclic starting materials into various carbo- and heterocycles. The practical values of these one-step phosphine-catalyzed annulation processes are significant since (1) they are atom economic and environmentally friendly, and (2) the heterocycles are an immense class of organic compounds with numerous practical applications. One recent, particularly significant advancement is the creation of chiral phosphines that are derived from a natural amino acid, L-hydroxyproline. Their synthetic utility in the phosphine catalyzed annulations, application in total syntheses of (+)-ibophyllidine and (–)-actinophyllic acid, and commercialization will also be discussed. The phosphinocatalysis reactions that my group has developed have produced structurally varied heterocycles of immense value for numerous practical applications. To illustrate the utility of these heterocycles, my group has been engaged in chemical genetic studies, resulting in the identification of the following bio-modulators: (1) inhibitors of the enzymes GGTase‐I and Rab GGTase; (2) an anti-arrhythmic agent (named “efsevin”) to rescue zebrafish tremblor mutant; (3) an inhibitor (named “aplexone”) of cholesterol biosynthesis that is more potent than Pfizer’s Lipitor; (4) compounds inhibiting cell migration and cell invasion; (5) interferon γ‐like compounds that augment innate immune responses of macrophages; (6) inhibitors of cytotoxic T cell lytic granule exocytosis; and (7) inhibitors of serine hydrolases that are specific for platelet-activating factor acetylhydrolases 1b2 and 1b3 (PAFAH1b2/3). Chemical biological studies related with these molecules will be presented during the talk. In addition, recent development in phosphine oxide catalysis research will also be introduced.
Wedneday, Dec 5
PhD Defense Elizabeth Corbin at 2 pm in the Byker.
Friday, Dec 7
Sergey Pronin (UC Irvine). Prof. Tom Livinghouse host.
Thursday, Dec 13
Graduate Student Seminar from Ece Topuzlu 12 noon in the Byker. Ece is in the lab of Professor Valérie Copié
Friday, Jan 11
Prof. Jeremy Johnson (BYU) Prof. Erik Grumstrup host
Friday, Jan 18
Dr. David Zigler from the Dept. of Chemistry and Biochemistry California Polytechnic State University-San Luis Obispo. Erik Grumstrup host.
Thursday, Jan 24
Dr. Keith Hollis from the Dept. of Chemistry at Mississippi State University will present "Designing, Developing and Applying Molecules to Solve Tomorrow’s Problems: CCC-NHC Pincer Complexes: Early and Late Transition Metal Complexes – Synthesis & Applications." Byker Auditorium at 3:10 pm
Abstract: The Hollis Group designs and develops next-generation organometallic ligands and complexes (CCC-NHC pincers) for many applications, which often requires the development of new synthetic methodologies. Access to new molecules and materials is required to solve many of the technological challenges facing society, such as improving energy-efficiency, direct conversion of solar energy to useful forms, and more cost-effective access to medicines. These goals are reached by developing efficient, scalable syntheses of molecules with interesting properties.
Friday, Jan 25 -
Dr. David Lee, Washington State University. Prof. Tim Minton host.
Friday, Feb 1-
Prof. Anje Kunze
Friday, Feb 8
Prof. Scott Warren (UNC Chapel Hill). Prof. Nicholas Stadie host.
Friday, Feb 15
Dr. Bryan Eichhorn from the University of Maryland, Dept of Chemistry and Biochemistry. Prof. Rob Walker host
Friday, March 1
Dr. Mitch Smith (Michigan State). Prof. Joan Broderick host.
Friday, March 8
Dr. Alex Guo (Carnegie Mellon University). Prof. Jen DuBois host.
Friday, March 15
Dr. Orion Berryman (UM) Prof. Mary Cloninger host.
Friday, March 29
Dr. Elliot Hulley (University of Wyoming) Prof. Michael Mock host
Friday, April 5
Prof. Timothy Warren (Georgetown University). Prof. Michael Mock host
Friday, April 12
Dr. John Tunge (Kansas). Prof. Matt Cook host
Friday, April 19- University Holiday
Friday, April 26
Dr. Joan Valentine (UCLA). Graduate students host.
Friday, May 3
Dr. Joe Topczewski (University of Minnesota). Prof. Matt Cook host.