Excitation of Molecules Using Scanning Tunneling Microscopy Scanning Tunneling Microscopy (STM) has been a powerful method of imaging surfaces with very high spatial resolution. Another important use of STM is the study of molecular reaction pathways brought about by inelastic electron tunneling. In this process, tunneling electrons containing energy above a threshold bring about an excitation in the molecular system which leads to reaction pathways as the excited molecule consequently relaxes along its potential energy surface. Type of Event: Physical Seminar Read more about Excitation of Molecules Using Scanning Tunneling Microscopy
Mechanistic Insights into Acetyl CoA Synthase from Nickel-Substituted Azurin CO dehydrogenase (CODH) and Acetyl CoA synthase (ACS) belong to the ancient Wood-Ljungdhal pathway, widely speculated to have been the first metabolic pathway to develop in the earliest lifeforms. Early life forms were strictly anaerobic and this metabolic pathway allowed those organisms to grow solely on CO and CO2. CODH first catalyzes the reversible reduction of CO2 to CO. Type of Event: Inorganic Seminar Read more about Mechanistic Insights into Acetyl CoA Synthase from Nickel-Substituted Azurin
Ab Initio Free Energy Simulations with Chemical Accuracy: Adsorption and Catalysis in Nanoporous Materials The design of improved nanoporous materials, such as MOFs for water harvesting and carbon capture and zeolites for hydrocarbon synthesis and conversion, requires the reliable prediction of rate and equilibrium constants, i.e. free energies, for adsorption/desorption and elementary reaction steps with no other input than the atomic positions. To be relevant, predictions have to be made with an accuracy that is comparable to experiment. Type of Event: Mulliken Lecture Computational Theoretical Chemistry Seminar Read more about Ab Initio Free Energy Simulations with Chemical Accuracy: Adsorption and Catalysis in Nanoporous Materials
Processes That Govern the Direct and Indirect Climate Effects of Carbonaceous Aerosol from Biomass Burning and Plastic Pollution The Schnitzler research group focuses on the fate and impact of carbonaceous aerosols, nanoparticles suspended in air, generated from biomass burning and plastic pollution. These particles impact climate directly by interacting with solar and terrestrial radiation and indirectly by altering cloud formation and properties. Due to their small dimensions, these particles can stay suspended in the atmosphere for a week or two, during which time their interactions with light and water can change. Type of Event: Analytical Seminar Read more about Processes That Govern the Direct and Indirect Climate Effects of Carbonaceous Aerosol from Biomass Burning and Plastic Pollution
Using Ion Mobility Mass Spectrometry to Determine the Stereochemistry of Biopolymer Building Blocks Amino acids and carbohydrates are involved in many biological process which are critical in determining their accurate characterization. These monosaccharide percussors are fundamental building blocks to their functionality such as cell-cell recognition, cellular adhesion, protein folding and solubility, metabolism, and immune/host pathogen response. All amino acids, except glycine, exist in two stereochemical forms, with the L-form being most common in nature. These precursors can have multiple structures that can make their characterization complex. Type of Event: Analytical Seminar Read more about Using Ion Mobility Mass Spectrometry to Determine the Stereochemistry of Biopolymer Building Blocks
Through Thick and Thin: Chemical Strategies Towards Unique Electronic and Optical Landscapes in Atomically Precise One-Dimensional Solids The physical properties of solids are inherently coupled to their structure and dimensionality. As such, the discovery of nascent physical phenomena and the realization of complex miniaturized devices in the solid state have incessantly relied upon the creation of stable low-dimensional crystals that approach the atomic limit. Type of Event: Materials Chemistry and Nanoscience Seminar Read more about Through Thick and Thin: Chemical Strategies Towards Unique Electronic and Optical Landscapes in Atomically Precise One-Dimensional Solids
Microneedles for Drug Delivery: Technology and Applications Transdermal drug delivery offers an alternative to traditional oral and intravenous methods, addressing challenges like poor bioavailability and patient discomfort. However, this approach is limited to molecules with specific physicochemical properties (such as low molecular weight, high potency, and moderate lipophilicity) due to the skin’s stratum corneum barrier. Among various enhancement techniques, microneedle (MN) technology has emerged as a promising solution for delivering therapeutic agents of any size through the transdermal route. Type of Event: Materials Chemistry and Nanoscience Seminar Read more about Microneedles for Drug Delivery: Technology and Applications
3D Fiber Scaffolds for use in Cultivated Seafood With a growing population comes an increase in demand for food. However, these food sources are limited by the supply and sustainability of natural resources currently available on the planet. This study introduces edible, sustainable, environmentally friendly, and consumer appealing alternative seafood production platforms. The value of 3D scaffolding over traditional 2D cell culture is explored as well as the structural optimization and scalability of 3D scaffold cultures. Type of Event: Materials Chemistry and Nanoscience Seminar Read more about 3D Fiber Scaffolds for use in Cultivated Seafood