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Sequestered: The Assembly and Function of Protein Organelles

Tuesday, February 24, 2015, 12:30 PM - 1:30 PM
Dave Savage, Assistant Professor, Departments of Molecular & Cell Biology and Chemistry, UC, Berkeley

Abstract: Cells use structure to catalyze and facilitate the chemical reactions of metabolism. This principle is embodied by bacterial microcompartments (BMCs), a class of protein-based organelles that are found in in vivo. Here, I will present recen more  »


Tailoring the Third-Dimension in Layered Materials: Direct Synthesis of Layered Intercalation Compounds and Single-Layer Nanosheets

Monday, February 23, 2015, 4:00 PM - 5:00 PM
Dr. Luyi Sun, Associate Professor of Chemical & Biomolecular Engineering, Institute of Materials Science at the University of Connecticut

Layered materials have been well investigated and have found widespread application. Traditionally, one can only alter the lateral dimension (X and Y directions) of layered compounds. The layer thickness or composition in the Z direction is hard to b more  »


Small Quantum Dots for Nanometer Accuracy and Resolution on Living Synapses of Neurons

Wednesday, February 18, 2015, 4:00 PM - 5:00 PM
Dr. Paul R. Selvin, Professor, Department of Physics and Biophysics, University of Illinois at Urbana-Champaign

We have recently made small quantum dots (< 10 nm in diameter) that are extremely bright and photostable, enabling single molecule detection on specifically labelling receptor proteins in living (cultured) neurons. We have studies two of the most com more  »


Getting Together: What Can Enzyme Clustering Do for Metabolism?

Tuesday, February 17, 2015, 12:30 PM - 1:30 PM
Ned Wingreen, Professor, Department of Molecular Biology, Princeton University

Abstract: Metabolism is the set of enzymatic reactions that cells use to generate energy and biomass. Interestingly, recent studies suggest that many metabolic enzymes assemble into large clusters, often in response to environmental conditions. Theor more  »


How Politics are Impacting Chemistry and Basic Research

Thursday, February 12, 2015, 4:00 PM - 5:00 PM
Dr. Ryan Davison, Manager, Advocacy, American Chemical Society

A general political update about the current dynamics/dysfunction on Capitol Hill, a specific political update about the members of Congress and committees that most effect science and research, and a legislative update about recent/current bills in more  »


Design Ability of Peptide-Based Materials

Wednesday, February 11, 2015, 4:00 PM - 5:00 PM
Dr. Vincent Conticello, Professor, Department of Chemistry, Emory University

Structurally defined materials on the nanometer length-scale have been historically the most challenging to rationally construct and the most difficult to structurally analyze. Sequence-specific biomolecules, i.e., proteins and nucleic acids, have ad more  »

Lecture/Lecture Series

FRANKLIN LECTURE Mulling Over Emulsions: Molecular Assembly at Oil-Water Interfaces

Thursday, February 5, 2015, 4:00 PM - 5:00 PM
Dr. Geraldine Richmond, Presidential Chair and Professor of Chemistry, University of Oregon

Since the Romans first spread oil on water to calm the raging seas, curiosity has persisted about the unique nature of the interface between water and a hydrophobic liquid including how surfactants and dispersants adsorb at this unique junction. This more  »


The dirtiest parts of physical chemistry: What happens to molecules *after* stimulated absorption?

Wednesday, February 4, 2015, 4:00 PM - 5:00 PM
Dr. Joseph Subotnik, The University of Pennsylvania

In this talk, he will give an overview of how we can model electronic relaxation for complex molecular problems. Our approach will be the quick and dirty surface hopping algorithm. He will show how surface hopping works, discuss its physical origins more  »

Thesis Defense

Nanomaterials for Hydrocarbon Exploration, Acid Gas Removal and Energy Devices

Wednesday, February 4, 2015, 3:00 PM - 5:00 PM
Gedeng Ruan, Doctoral Candidate

This thesis discusses the synthesis and characterization of several different nanomaterials as well as their applications to oil and energy industries. The nanomaterials studied here include asphalt-derived high surface area activated porous carbon, more  »


Spatio-temporal Model for Silencing of Mitotic Spindle Assembly Checkpoints

Tuesday, February 3, 2015, 12:30 PM - 1:30 PM
Jian Liu, Investigator, Theoretical Cellular Physics, National Institutes of Health

Abstract: The spindle assembly checkpoint arrests mitotic progression until each kinetochore secures a stable attachment to the spindle. Despite fluctuating noise, this checkpoint remains robust and remarkably sensitive to even a single unattached ki more  »


Thesis Defense

Synthesis and Applications of Graphene Based Nanomaterials

Thursday, January 29, 2015, 8:45 AM - 10:45 AM
Zhiwei Peng, Doctoral Candidate

Graphene, a two-dimensional sp2-bonded carbon material, has recently attracted major attention due to its excellent electrical, optical and mechanical properties. Depending on different applications, graphene and its derived hybrid nanomaterials can more  »


Lewis acidic and redox properties of organoantimony derivatives – Applications in anion sensing and halogen photoreductive elimination

Wednesday, January 28, 2015, 4:00 PM - 5:00 PM
François P. Gabbaï, Texas A&M University

While it is generally perceived that strong Lewis acidity is the preserve of group 13 elements, the pioneering work of Olah shows that this property can also be expressed in the group 15, especially with antimony. As part of our continuing interest i more  »


Scaling in Cellular Dynamics

Tuesday, January 27, 2015, 12:30 PM - 1:30 PM
Aaron Dinner, Professor, Department of Chemistry, The University of Chicago

Abstract: The dynamics of living systems are noisy. These fluctuations contain information about contributing microscopic mechanisms, and this information can be extracted by quantitative analysis of experimental imaging data together with mathematic more  »


Shaping Metallic Nanoparticles toward Integrated Plasmonics and Catalysis

Monday, January 26, 2015, 4:00 PM - 5:00 PM
Hui Wang, The University of South Carolina

Noble metal nanoparticles have been of tremendous interest because of their intriguing size- and shape-dependent plasmonic and catalytic properties. The combination of tunable plasmon resonances with superior catalytic activities on the same nanopart more  »

Thesis Defense

One- and Two-Dimensional sp2-Carbon Nanomaterials: Synthesis, Properties, and Applications

Monday, January 26, 2015, 1:00 PM - 3:00 PM
Abdul-Rahman Raji, Doctoral Candidate

The unifying objective of this thesis is to synthesize, control, modify, hybridize, interface, understand, and apply one- and two-dimensional sp2-carbon nanomaterials. The materials include graphene (2D), carbon nanotubes (1D), and graphene nanoribbo more  »


RNAs in Silico: What We Can Learn from Molecular Dynamics

Thursday, January 22, 2015, 2:00 PM - 3:00 PM
Giovanni Bussi, SISSA/ISAS (Italy)

Ribonucleic acid (RNA) is acquiring a large importance in cell biology, as more functions that it accomplishes are discovered. However, experimental characterization of RNAs dynamical behavior at atomistic level is difficult. Molecular dynamics (MD), more  »


Water on the edge: hydrogen bonding through the looking glass of surface-selective vibrational spectroscopy

Wednesday, January 21, 2015, 4:00 PM
Alex Benderskii, The University of Southern California

The properties of water near surfaces and interfaces play important role in processes ranging from atmospheric chemistry to catalysis and biophysics. This talk will review the surface-selective vibrational sum frequency generation (VSFG) spectroscop more  »


Designing with Biology

Tuesday, January 20, 2015, 12:30 PM - 1:30 PM
Pamela Silver, Professor and Chairman of Physics, Department of Systems Biology, Harvard Medical School

Thesis Defense

Carbon-Based Nanomaterials and their Medical Applications

Friday, January 16, 2015, 9:00 AM - 11:00 AM
Errol Samuel, Doctoral Candidate

The Tour lab has previously demonstrated that antibody-targeted drug-loaded carbon nanoparticles, called PEGylated hydrophilic carbon clusters (PEG-HCCs), can be utilized for cancer-specific drug delivery both in vitro and in vivo. In this work, we a more  »

Thesis Defense

Metal ferrite nanoparticles as tracers in hydraulically fractured wells

Friday, January 16, 2015, 3:00 PM - 5:00 PM
Lauren Morrow, Doctoral Candidate

A variety of metal ferrite nanoparticles were synthesized via thermal decomposition reaction and characterized with transmission electron microscopy, small angle X-ray scattering, inductively coupled plasma – optical emission spectroscopy, X-ray phot more  »


Sorting Carbon Nanotubes by DNA

Wednesday, January 14, 2015, 4:00 PM - 5:00 PM
Ming Zheng, National Institute of Standards and Technology

Sorting single-wall carbon nanotubes (SWCNTs) by their atomic structures is a fascinating molecular game that has attracted many researchers. We have been using single-stranded DNA as a type of sequence-controlled polymer for effective SWCNT dispersi more  »


Mathematical Modeling and the Potential Cure of HIV

Tuesday, January 13, 2015, 12:30 PM - 1:30 PM
Alan S Perelson, Group Leader, Theoretical Biology & Biophysics Group - Los Alamos National Laboratory

Mathematical modeling has been a key part of HIV research since the mid-1990s. I will review some of the important insights gained through modeling so as to set the stage for understanding where the field is now and how it is approaching the possibil more  »

Thesis Defense

Metal ferrite nanoparticles as tracers in hydraulically fractured wells

Tuesday, January 6, 2015, 3:00 PM - 5:00 PM
Lauren Morrow, Doctoral Candidate

A variety of metal ferrite nanoparticles were synthesized via thermal decomposition reaction and characterized with transmission electron microscopy, small angle X-ray scattering, inductively coupled plasma - optical emission spectroscopy, X-ray phot more  »