Field-Free Molecular Alignment and Orientation Control of molecular orientation and alignment has been a longstanding goal in chemical reaction dynamics because the outcome of chemical reactions inherently depends on the relative orientation of the colliding species. Type of Event: Physical Seminar Read more about Field-Free Molecular Alignment and Orientation
Optical Properties of Biomass Burning Aerosols from the G-WISE Campaign Wildland fires contribute significantly to the total carbonaceous aerosol mass concentration in the troposphere. These aerosols, formed from the combustion of biomass fuels, exhibit strong absorption and scattering of visible light, which impacts the radiative forcing in the troposphere. The Georgia Wildland-fire Simulation Experiment (G-WISE), conducted in Athens, GA during October-November 2022, was designed to develop a scientific basis for the regulations that dictate under what conditions a prescribed burn can be performed. Type of Event: Physical Seminar Read more about Optical Properties of Biomass Burning Aerosols from the G-WISE Campaign
Modernity in Ancient Times: Copper Silicate Pigments from Historical Significance to Modern Applications Egyptian blue is considered the first synthetic pigment, dating back to the 3rd millennium BC1. It is a layered calcium copper silicate material with the chemical composition CaCuSi4O10. Later, a related family of these layered silicates were discovered— Han blue (BaCuSi4O10), and Han Purple (BaCuSi2O6)2. Type of Event: Materials Chemistry and Nanoscience Seminar Read more about Modernity in Ancient Times: Copper Silicate Pigments from Historical Significance to Modern Applications
Controversy on Venus: The Existence of Phosphine In 2020, Greaves et al. concluded from two independent data sources that phosphine is present in the cloud decks of Venus. Their study focused on the fundamental first rotational transition (J = 1-0) of PH3 and their detection of phosphine is solely based on this single transition. Given the importance of phosphine as a possible biosignature and our current understanding of the chemistry of Venus, multiple studies reanalyzed the data of Greaves et al. Type of Event: Physical Seminar Read more about Controversy on Venus: The Existence of Phosphine
Effects of Production Conditions and Environmental Aging on Solid-Phase and Dissolvable Pyrogenic Organic Matter Characteristics Pyrogenic organic matter (PyOM, aka ‘black carbon’) generated via the incomplete combustion of biomass or fossil fuels is an important component in soil, atmospheric, sedimentary, and aquatic environments. In particular, the condensed aromatic compounds (ConAC) in PyOM are slow-cycling rendering them important to global carbon cycles and the sequestration of carbon in soils. Type of Event: Analytical Seminar Read more about Effects of Production Conditions and Environmental Aging on Solid-Phase and Dissolvable Pyrogenic Organic Matter Characteristics
The Pursuit of How Structure Impacts Function: from Lipids to Oligonucleotides The functional role of a biological molecule hinges on its unique structure. The context by which structure impacts function is a vital piece of information that can provide insight into underlying biological processes. One set of biological molecules that have received renewed interest for their biological significance and potential role as markers of cellular dysfunction are lipids. Type of Event: Analytical Seminar Read more about The Pursuit of How Structure Impacts Function: from Lipids to Oligonucleotides
The UGA Center for Applied Isotope Studies: What We Do and Why The Center for Applied Isotope Studies (CAIS) is a multidisciplinary scientific research unit and core service facility within the UGA Office of Research that specializes in the quantification of isotope ratios using mass spectrometry. Type of Event: Analytical Seminar Read more about The UGA Center for Applied Isotope Studies: What We Do and Why
Quantitatively Evaluate the Orientation of the Axis of α-Helical α-Synuclein(61-95) in Monolayer with Residue Level Resolution by pMAIRS Significant scientific attention has been spent on the elucidation of protein’s structure to explain its function. Lots of proteins stay around cell membrane or vesicles to facilitate cellular metabolism. These proteins usually form monolayer structure around cell membrane/vesicles and therefore cause challenges for the measurements of X-ray crystallography and NMR, which cannot provide high resolution results for proteins in monolayer. Type of Event: Analytical Seminar Read more about Quantitatively Evaluate the Orientation of the Axis of α-Helical α-Synuclein(61-95) in Monolayer with Residue Level Resolution by pMAIRS
Characterization of Glycation and Other PTMs in Biotherapeutics Using HILIC-MS Glycation is an important post-translational modification that is linked to diabetes, cataract, Alzheimer’s, Rheumatoid arthritis and Parkinson’s disease.1 This reaction occurs between a reducing sugar and a primary amine at the N-terminus of protein or the sidechain of Lysine residues. Ultimately this interaction leads to advanced glycation end products (AGEs) that are associated with several disease complications.2 Glycation could also occur during the manufacturing and storage of therapeutic proteins, Type of Event: Analytical Seminar Read more about Characterization of Glycation and Other PTMs in Biotherapeutics Using HILIC-MS
Investigating Analytical Techniques for Microplastic Characterization and Quantification Exposure to microplastics and nanoplastics throughout daily life is inevitable, yet still poses a variety of unknowns and concerns in biological and environmental systems. Microplastics are defined by the National Oceanic and Atmospheric Association (NOAA) as all plastic particles <5mm in size; either produced to be that size (primary) or via degradation of larger particles (secondary). Ubiquitous in nature, microplastics have successfully infiltrated marine systems, foodstuffs, soil/sediments, and biological systems. Type of Event: Analytical Seminar Read more about Investigating Analytical Techniques for Microplastic Characterization and Quantification