Browsing Chemistry and Biochemistry by Title
Now showing items 524-543 of 682
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Sandwich compounds of cyanotrispyrazolylborates: complexation-induced ligand isomerization
(American Chemical Society, 2007-10-15)Reaction of the new cyanoscorpionate ligand, hydrotris(4-cyano-3-phenyl)pyrazolylborate (Tp(Ph),(4CN)) with Co(II), Mn(II), and Fe(II) unexpectedly results in the isolation only of crystals containing sandwich complexes ... -
Search for active-sterile antineutrino mixing using neutral-current interactions with the NOvA experiment
(American Physical Society, 2021-11-11)This Letter reports results from the first long-baseline search for sterile antineutrinos mixing in an accelerator-based antineutrino-dominated beam. The rate of neutral-current interactions in the two NOvA detectors, at ... -
Self-Assembled Porphyrin-C(60) and Porphycene-C(60) Complexes via Metal Axial Coordination
(American Chemical Society, 1999-05-03)Noncovalently linked electron donor-acceptor complexes consisting of either zinc tetraphenylporphyrin, (TPP)Zn, or zinc octaethylporphycene, (OEPc)Zn, as donor and pyridine appended C(60), py approximately C(60), as acceptor, ... -
Self-assembled single-walled carbon nanotube:zinc-porphyrin hybrids through ammonium ion-crown ether interaction: construction and electron transfer
(John Wiley and Sons, 2007-01-01)An ammonium ion-crown ether interaction has been successfully used to construct porphyrin-single-walled carbon nanotube (SWNT) donor-acceptor hybrids. The [18]crown-6 to alkyl ammonium ion binding strategy resulted in ... -
Self-assembled via axial coordination magnesium porphyrin-imidazole appended fullerene dyad: spectroscopic, electrochemical, computational, and photochemical studies
(American Chemical Society, 2005-05-26)Spectroscopic, redox, and electron transfer reactions of a self-assembled donor-acceptor dyad formed by axial coordination of magnesium meso-tetraphenylporphyrin (MgTPP) and fulleropyrrolidine appended with an imidazole ... -
Self-assembly and micellar transition in CTAB solutions triggered by 1-Octanol
(American Chemical Society, 2022-10-13)This study exploits higher-order micellar transition ranging from ellipsoidal to rodlike to wormlike induced by 1-octanol (C$_8$OH) in an aqueous solution of cetyltrimethylammonium bromide (CTAB), characterizing phase ... -
Seneca Valley Virus Exploits TEM8, a collagen receptor implicated in tumor growth
(Evans DJ, Wasinger AM, Brey RN, Dunleavey JM, St. Croix B and Bann JG (2018) Seneca Valley Virus Exploits TEM8, a Collagen Receptor Implicated in Tumor Growth. Front. Oncol. 8:506, 2018-11-06)Recent studies reveal that Seneca Valley Virus (SVV) exploits tumor endothelial marker 8 (TEM8) for cellular entry, the same surface receptor pirated by bacterial-derived anthrax toxin. This observation is particularly ... -
Sensitive efficiency of photoinduced electron transfer to band gaps of semiconductive single-walled carbon nanotubes with supramolecularly attached zinc porphyrin bearing pyrene glues
(American Chemical Society, 2010-06-16)Photoinduced electron transfer in self-assembled single-walled carbon nanotube (SWNT)/zinc porphyrin (ZnP) hybrids utilizing (7,6)- and (6,5)-enriched SWNTs has been investigated. Toward this, first, zinc porphyrin was ... -
Separation of dideoxyribonucleosides in trace amounts by automated liquid chromatography and capillary electrophoresis
(Elsevier, 1992-09-18)No satisfactory high-performance liquid chromatographic (HPLC) method is currently available for the separation of the major dideoxyribonucleosides (ddNs) and their derivatives. A method involving HPLC has been developed ... -
Separation of diverse lipid isomers by FAIMS in conjunction with mass spectrometry
(Wichita State University, 2016-04-29)The specificity, sensitivity, and versatility of mass spectrometry (MS) have made it the dominant analytical tool. However, typical biological and environmental samples are complex enough to require prior separations, ... -
Separation of metallic and semi conducting SWNTs by density gradient ultracentrifugation and formation of donor-acceptor hybrids using porphyrins
(Wichita State University. Graduate School, 2010-04-23)Occurrence of photo induced electron transfer in donor-acceptor self-assembled Zinc porphyrin (ZnP) and C₀M₀CAT single walled carbon nanotube (SWNT) nanohybrid has been demonstrated. C₀M₀CAT (6,5) and C₀M₀CAT(7,6) SWNT ... -
Serendipitous discovery of an unexpected rearrangement leads to two new classes of potential protease inhibitors
(Elsevier, 2004-12-01)The pathogenesis of a range of human diseases arises from the aberrant activity of proteolytic enzymes. Agents capable of selectively modulating the activity of these enzymes are of potential therapeutic value. Thus, there ... -
Serine protease inhibitors
(United States Patent and Trademark Office, 1996-08-27)Isothiazolidin-3-one-1,1 dioxide, 3-oxo-1,2,5-thiadiazolidine-1,1,-dioxide and derivatives thereof, reduce or inhibit the activity of serine proteases. Such compounds are useful as anti-inflammatory and anti-metastatic agents. -
Simple, efficient synthetic route to 2-2 '-bipyrazine derivatives from bromopyrazine for making rhenium and ruthenium dyes
(American Chemical Society, 2017)A simple and efficient synthetic route for syntheses of 2-2'-bipyrazine (bpz) derivs. is described starting with 2-chloropyrazine and 2-methyl-4-carboxypyrazine resulting in 2,2'-bipyrazine, 4-methyl-2,2'-bipyrazine ... -
Simulated speed distributions for effusing gases in the transition region
(American Chemical Society, 2005-10-06)Monte Carlo techniques were used to evaluate the flow of molecules through an ideal orifice (effusion) as predicted by isotropy-failure theory. Binary collisions of molecules were treated using classical mechanics with ... -
Single molecule biophysics and fluorescence correlation spectroscopy
(Wichita State University, 2014-12)This dissertation focuses on applications of ultra-sensitive fluorescence. It mainly contains two parts: applying single molecule Foerster resonance energy transfer (SM-FRET) in studies of dynamics and topology of looping ... -
A slow-tight binding inhibitor of dopamine beta-monooxygenase: a transition state analogue for the product release step
(American Chemical Society, 2002-10-15)The steady-state kinetic data show that 3-hydroxy-4-phenylthiazole-2(3H)-thione (3H4PTT) is a potent tight-binding inhibitor for dopamine beta-monooxygenase (DbetaM) with a dissociation constant of 0.9 nM. Ackermann-Potter ... -
Small molecule 3C-like protease inhibitors of Middle East respiratory syndrome coronavirus (MERS-CoV), severe acute respiratory syndrome coronaviruses (SARS-CoV, SARS-CoV-2) and norovirus (NV)
(Wichita State University, 2020-12)High pathogenicity of viruses belonging to the picornavirus like supercluster, particularly the Middle East Respiratory Syndrome Coronavirus (MERS-CoV), Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), and ... -
Solution properties of the iron(II) tris-bipyrazine cation
(Wichita State University. Graduate School., 2005-04-22) -
Spectral and electrochemical investigations on the "tail-on" and "tail-off" mechanism in pyridine covalently bound zinc(II) porphyrins
(American Chemical Society, 1996-09-11)