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Full-Text Articles in Chemistry
The Aromatization Of Propene Via Nano-Size Hzsm-5, Wayne Seames, Swapnil Fegade, Inna Sakodynskaya, Darrin Muggli, Brian Tande, Alena Kubatova, Evguenii Kozliak
The Aromatization Of Propene Via Nano-Size Hzsm-5, Wayne Seames, Swapnil Fegade, Inna Sakodynskaya, Darrin Muggli, Brian Tande, Alena Kubatova, Evguenii Kozliak
Chemistry Faculty Publications
Zeolite (ZSM) catalysts are known to convert small-size alkenes, e.g., propene, into aromatic hydrocarbons, specifically benzene, toluene and xylenes (BTX), with both high efficiency and specificity. The efficiency of conventional and hierarchical nano-size ZSM-5 for propene aromatization was compared in this study using a Design of Experiments (DOE) approach combined with detailed product analysis. Contrary to our expectations, the former showed a significantly greater BTX yield than the latter. Analysis of the obtained data by DOE and additional experiments with soybean oil cracking using both catalyst types indicated that a reason for the observed reduced activity of nano-scale zeolites may …
Lipophilic Chemicals From Diesel Exhaust Particles Trigger Calcium Response In Human Endothelial Cells Via Aryl Hydrocarbon Receptor Non-Genomic Signalling, Alena Kubatova, Bendik C. Brinchmann, Eric Le Ferrec, Normand Podechard, Dominique Lagadic-Gossmann, Kenji F. Shoji, Aubin Penna, Klara Kukowski, Jorn A. Holme, Johan Ovrevik
Lipophilic Chemicals From Diesel Exhaust Particles Trigger Calcium Response In Human Endothelial Cells Via Aryl Hydrocarbon Receptor Non-Genomic Signalling, Alena Kubatova, Bendik C. Brinchmann, Eric Le Ferrec, Normand Podechard, Dominique Lagadic-Gossmann, Kenji F. Shoji, Aubin Penna, Klara Kukowski, Jorn A. Holme, Johan Ovrevik
Chemistry Faculty Publications
Exposure to diesel exhaust particles (DEPs) affects endothelial function and may contribute to the development of atherosclerosis and vasomotor dysfunction. As intracellular calcium concentration [Ca2+]i is considered important in myoendothelial signalling, we explored the effects of extractable organic matter from DEPs (DEP-EOM) on [Ca2+]i and membrane microstructure in endothelial cells. DEP-EOM of increasing polarity was obtained by pressurized sequential extraction of DEPs with n-hexane (n-Hex-EOM), dichloromethane (DCM-EOM), methanol, and water. Chemical analysis revealed that the majority of organic matter was extracted by the n-Hex- and DCM-EOM, with polycyclic aromatic hydrocarbons primarily occurring in n-Hex-EOM. …
Theoretical Circular Dichroism Spectra Of The Α-Helical Protein Calexitin With The Dipole Interaction Model Including The N-Π* Transition, Akongnwi C. Jungong, Tsvetan Aleksandrov, Rahul Nori, Justin Erickson, Kathryn A. Thomasson, Igor V. Uporov, Ethan R. Austhof, Emily Holt, Felix N. Ngassa
Theoretical Circular Dichroism Spectra Of The Α-Helical Protein Calexitin With The Dipole Interaction Model Including The N-Π* Transition, Akongnwi C. Jungong, Tsvetan Aleksandrov, Rahul Nori, Justin Erickson, Kathryn A. Thomasson, Igor V. Uporov, Ethan R. Austhof, Emily Holt, Felix N. Ngassa
Chemistry Faculty Publications
Circular dichroism (CD) is an important structural biology technique used to study protein dynamics, and most especially the secondary structure of peptides and proteins. Although CD is a technique that is relatively easy to introduce to undergraduate students, the high cost of obtaining a conventional CD instrument and the time required for sample preparation prevents a good number of students from having hands-on experiments demonstrating the principle of CD. Herein, theoretical circular dichroism with the dipole interaction model, DInaMo, is proposed as a tool for introducing students to CD. Using the dipole interaction model, the CD spectra of an α-helical …