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Measuring Long-range Correlated Dynamics in Organic Glasses

Wednesday, January 18, 2017, 4:00 PM - 5:00 PM
Zahra Fakhraai, Assistant Professor of Chemistry, University of Pennsylvania

Nanometer-sized thin films of small organic molecules are widely used in applications ranging from organic photovoltaics and organic light emitting diodes, to protective coatings and high resolution nano-imprint lithography. Physical vapor deposition more  »


"Systems Biology in Single Cells: A Tale of Two Viruses

Tuesday, January 17, 2017, 12:30 PM - 1:30 PM
Abhyudai Singh, Assistant Profesor, University of Delaware

Abstract: In the noisy cellular environment, expression of genes has been shown to be stochastic across organisms ranging from prokaryotic to human cells. Stochastic expression manifests as cell-to-cell variability in the levels of RNAs/proteins, in more  »


Synthetic Nucleic Acid Topology and Colloidal LEGO-Like Nanoparticles for Biological and Plasmonic Applications

Wednesday, January 11, 2017, 4:00 PM - 5:00 PM
Yossi Weizmann, Assistant Professor of Chemistry, University of Chicago

The iconic double helical structure of DNA has excited the imagination of both scientists and non-scientists for more than six decades. In recent times, the programmable nature of DNA has redefined its use as a powerful building material for the cons more  »


"Signatures of Mutational Processes in Human Cancer"

Tuesday, January 10, 2017, 12:30 PM - 1:30 PM
Ludmil B. Alexandrov, Oppenheimer Fellow, Center for Nonlinear Studies, Los Alamos National Laboratory

Abstract: All cancers are caused by somatic mutations. These mutations may be the consequence of the intrinsic slight infidelity of the DNA replication machinery, exogenous or endogenous mutagen exposures, enzymatic modification of DNA, or defective more  »


Thesis Defense

Developing Multiple Dimensional Vibrational Spectroscopy for Molecular Conformation Determinations and New Catalysts Design

Wednesday, December 14, 2016, 9:00 AM - 11:00 AM
Yufan Zhang, Doctoral Candidate

Understanding molecular structures can play a critical role in revealing many important chemical and biological phenomena. X-ray crystallography and NMR methods, two of the most common structural tools, cannot reveal all unknown molecular structures more  »

Thesis Defense

Molecular Plasmonics

Thursday, December 8, 2016, 10:00 AM - 11:00 AM
Yao Cui, Doctoral Candidate

Graphene supports surface plasmons that have been observed to be both electrically and geometrically tunable in the midto far-infrared spectral regions. In particular, it has been demonstrated that graphene plasmons can be tuned across a wide spe more  »

Thesis Defense

Development of New Methods for the Synthesis of Novel Biaryls

Monday, December 5, 2016, 9:30 AM - 10:30 AM
Craig Keene, Doctoral Candidate

The abundance of axially-chiral natural products bearing biaryl substructures combined with the number of biaryls used as ligands in chemical transformations makes them an attractive target for establishing new methods for their synthesis. Described more  »



“Non-genetic Diversity Modulates Population Performance”

Tuesday, November 29, 2016, 12:30 PM - 1:30 PM
Thierry Emonet, Associate Professor of Molecular Cellular and Developmental Biology & Physics, Yale University

Abstract: Biological functions are typically performed by groups of cells that express predominantly the same genes, yet display a continuum of phenotypes. While it is known how one genotype can generate such non-genetic diversity, it remains unclear more  »