Browsing Chemistry and Biochemistry by Title
Now showing items 246-265 of 648
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The Gabriel-Colman rearrangement in biological systems: design, synthesis and biological evaluation of phthalimide and saccharin derivatives as potential mechanism-based inhibitors of human leukocyte elastase, cathepsin G and proteinase 3
(Elsevier, 1995-02-01)The results of a structure-activity relationship study focusing on the interaction of a series of phthalimide and saccharin derivatives with leukocyte elastase, cathepsin G and proteinase 3 are described. The phthalimide ... -
Gas phase attachment of water and methanol to Ag(I) complexes with alpha-amino acids in an ion trap mass spectrometer
(John Wiley and Sons, 2001-01-01)Electrospray ionization was used to generate gas phase complexes of Ag+ with selected alpha-amino acids. Following storage (isolation without collisional activation) in an ion trap mass spectrometer, the mass spectra ... -
The gas-phase bis-uranyl nitrate complex [(UO(2))(2)(NO(3))(5)](-): Infrared spectrum and structure
(Elsevier, 2011-12-01)The infrared spectrum of the bis-uranyl nitrate complex [(UO(2))(2)(NO(3))(5)](-) was measured in the gas phase using multiple photon dissociation (IRMPD). Intense absorptions corresponding to the nitrate symmetric and ... -
Gas-phase coordination complexes of (UO22+)-O-VI, (NpO22+)-O-VI, and (PuO22+)-O-VI with dimethylformamide
(Springer, 2011-11)Electrospray ionization of actinyl perchlorate solutions in H2O with 5% by volume of dimethylformamide (DMF) produced the isolatable gas-phase complexes, [An(VI)O(2)(DMF)(3)(H2O)](2+) and [An(VI)O(2)(DMF)(4)](2+), where ... -
Gas-phase H2O and O2 addition to UO2 + complexes containing single nitrile, ketone or amide ligands
(Wichita State University. Graduate School., 2006-04-28) -
Gas-phase investigation of Pd(II)-alanine complexes with small native and derivatized peptides containing histidine
(John Wiley and Sons, 2003-09-01)We report here the generation of gas-phase complexes containing Pd(II), a ligand (deprotonated alanine, A-), and/or N-terminus derivatized peptides containing histidine as one of the amino acids. The species were produced ... -
Gas-phase uranyl-nitrile complex ions
(American Chemical Society, 2006-01-26)Electrospray ionization was used to generate doubly charged complex ions composed of the uranyl ion and nitrile ligands. The complexes, with general formula [UO2(RCN)n]2+, n = 0-5 (where R=CH3-, CH3CH2-, or C6H5-), were ... -
Gene expression-based screen for Parkinson's disease identifies GW8510 as a neuroprotective agent
(American Chemical Society, 2016-07)We carried out a gene expression-based in silico screen in order to identify small molecules with gene-expression profiles that are anticorrelated with a gene-expression profile for Parkinson's disease (PD). We identified ... -
A general progress curve method for the kinetic analysis of suicide enzyme inhibitors
(Elsevier, 1996-02-15)The efficiency of suicide inhibitors is expressed in terms of the kinetic parameters KI and kinact and the partition ratio, which are commonly determined by the well-known dilution assay method. Progress curve analysis ... -
Generation and collision-induced dissociation of ammonium tetrafluoroborate cluster ions
(John Wiley and Sons, 2008-07-01)Singly and doubly charged cluster ions of ammonium tetrafluoroborate (NH4BF4) with general formula [(NH4BF4)nNH4]+ and [(NH4BF4)m(NH4)2]2+, respectively, were generated by electrospray ionization (ESI) and their fragmentation ... -
Generation of a protein based fluorescent reactive oxygen species sensor
(Wichita State University. Graduate School., 2007-04-27)The long- term goal of the project is to develop an environmentally safe, sensitive method for the detection of reactive oxygen species. The current hypothesis is that the biosynthetic incorporation of [2,5-H2]-phenylalanine ... -
Generation of gas-phase VO2+, VOOH+, and VO2+-nitrile complex ions by electrospray ionization and collision-induced dissociation
(American Chemical Society, 2006-10-19)Cationic metal species normally function as Lewis acids, accepting electron density from bound electron-donating ligands, but they can be induced to function as electron donors relative to dioxygen by careful control of ... -
Harvesting solar energy via artificial photosynthesis
(Wichita State University. Graduate School, 2010-04-23)Photosynthesis, the process of converting light energy into chemical energy, involves two major steps, absorption and transportation of light energy of appropriate wavelength by the antenna light harvesting molecules to ... -
Heterogeneous solvation shell dynamics around candida antarctica lipase b enzyme using molecular dynamics simulations: relationships with solvent structure, enzyme structure and enzyme dynamics
(Wichita State University, 2017-12)Solvent-compatible enzymes (those that function in organic solvents) are an important field of research. Understanding the relationship between solvent dynamics and protein dynamics will improve applications of proteins ... -
High-performance liquid chromatographic analysis of DNA composition and DNA modification by chloroacetaldehyde
(Elsevier, 1988-12-23)The separation of common and modified deoxyribonucleosides derived from DNA hydrolyzates was examined under different chromatographic conditions on silica-based octadecyl (C18) columns, involving hydrophobic interactions ... -
High-precision megahertz-to-terahertz dielectric spectroscopy of protein collective motions and hydration dynamics
(American Chemical Society, 2018-06-01)The low-frequency collective vibrational modes in proteins as well as the protein-water interface have been suggested as dominant factors controlling the efficiency of biochemical reactions and biological energy transport. ... -
High-resolution differential ion mobility separations/orbitrap mass spectrometry without buffer gas limitations
(American Chemical Society, 2019-04-29)Strong orthogonality between differential ion mobility spectrometry (FAIMS) and mass spectrometry (MS) makes their hybrid a powerful approach to separate isomers and isobars. Harnessing that power depends on high resolution ... -
High-resolution ion mobility separations of isomeric glycoforms with variations on the peptide and glycan levels
(American Chemical Society, 2020-06-05)Glycosylation is a ubiquitous post-translational modification (PTM) that strongly affects the protein folding and function. Glycosylation patterns are impacted by many diseases, making promising biomarkers. Glycans are ... -
HOMO-LUMO energy gap control in platinum(II) biphenyl complexes containing 2,2 '-bipyridine ligands
(Royal Society of Chemistry, 2015-08)A series of platinum(II) biphenyl 2,2'-bipyridine complexes containing electron-donating and electron-withdrawing moieties on the 4 and 4' positions of the bipyridine ligand exhibit emission from excited states in the 600 ... -
Hot-press manufacturing of aluminum based multi-layered wick structures for enhanced thermal performance
(Wichita State University, 2022-04-29)INTRODUCTION: Two phase passive heat transfer devices such as vapor chambers are used in modern miniaturized electronic devices and state-of-the-art CubeSat systems. These vapor chambers consist of three base components ...