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Cyanoacrylate Deposition Onto Sebum With Pretreatment Of Amine, Isaac Baltz
Cyanoacrylate Deposition Onto Sebum With Pretreatment Of Amine, Isaac Baltz
Chemistry & Biochemistry Undergraduate Honors Theses
Super glue, or ethyl cyanoacrylate, fuming is commonly used in forensic science to develop latent fingerprints on nonporous surfaces[7]. Fingerprints are primarily made up of the oily substance secreted by sebaceous glands better known as sebum. Previously it has been shown that exposure of fingerprints to diisopropylamine dramatically increases the deposition of cyanoacrylate polymers on the fingerprints[1]. However, the heterogeneity of any series of real fingerprints made it difficult to quantitatively assess this effect. This heterogeneity includes not just the amount of sebum but the presence of unknown amounts of proteins, amino acids, and other potential nucleophiles which catalyze the …
Effect Of Ph And Lipid Composition On Membrane-Spanning Helices With Glutamic Acid Examined By Solid-State Nmr, Kelsey Marr
Effect Of Ph And Lipid Composition On Membrane-Spanning Helices With Glutamic Acid Examined By Solid-State Nmr, Kelsey Marr
Chemistry & Biochemistry Undergraduate Honors Theses
Transmembrane proteins constitute about 30% of the proteins in a mammalian cell and are involved in major biological processes. The dynamic properties of membrane proteins and the ionization states of particular side chains are important for biological function. The biophysical properties of membrane proteins nevertheless can be difficult to decode, particularly for glutamic acid in the lipid environment of cell membranes. To study the ionization of glutamic acid in transmembrane peptides, guest glutamic acid residues were substituted into the well-defined model helix of GWALP23 (acetyl-GGAL4WLALALALALAL16ALWLAGA-amide). These guest residues were placed at position L16 or L4 and specific 2H-labeled alanine residues …