Browsing Chemistry and Biochemistry by Title
Now showing items 445-464 of 680
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Perturbation of dopamine metabolism by 3-amino-2-(4'-halophenyl)propenes leads to increased oxidative stress and apoptotic SH-SY5Y cell death
(American Society for Pharmacology and Experimental Therapeutics, 2007-09-01)We have recently characterized a series of 3-amino-2-phenyl-propene (APP) derivatives as reversible inhibitors for the bovine adrenal chromaffin granule vesicular monoamine transporter (VMAT) that have been previously ... -
pH effects on binding between the anthrax protective antigen and the host cellular receptor CMG2
(Wiley-Blackwell, 2012-10)The anthrax protective antigen (PA) binds to the host cellular receptor capillary morphogenesis protein 2 (CMG2) with high affinity. To gain a better understanding of how pH may affect binding to the receptor, we have ... -
pH-induced alteration and oxidative destruction of heme in purified chromaffin granule cytochrome b(561): implications for the oxidative stress in catecholaminergic neurons
(American Chemical Society, 2003-04-01)The transmembrane hemoprotein, cytochrome b(561) (b(561)), in the neuroendocrine secretory vesicles is shown to shuttle electrons from the cytosolic ascorbate (Asc) to the intravesicular matrix to provide reducing equivalents ... -
Phosphoinositide binding inhibits actin crosslinking and polymerization by palladin
(Elsevier B.V., 2016-10-09)Actin cytoskeleton remodeling requires the coordinated action of a large number of actin binding proteins that reorganize the actin cytoskeleton by promoting polymerization, stabilizing filaments, causing branching, or ... -
Photocatalytic conversion of CO2 to CO and acrylic acid
(American Chemical Society, 2014-03-16)The synthesis of various rhenium complexes was followed by an investigation of their capacity to reduce CO2 photocatalytically to CO. Re(bpy)(CO)3X (X = Cl, NCS; bpy = 2,2'-bipyridine) was irradiated in a CO2 saturated ... -
Photocatalytic conversion of CO2 to CO and its study in the production of acrylic acid
(Wichita State University. Graduate School, 2014-04-25)The synthesis of various Rhenium complexes is followed by an investigation of their capacity to reduce CO2 photocatalytically. Re(bpy)(CO)3X (X=Cl, NCS) is irradiated in a CO2 saturated DMF:TEOA solution in a Pyrex tube ... -
Photocatalytic reduction of CO2 to CO, and its study in the production of an organic acid
(American Chemical Society, 2013-04-07)The quantum efficiency to reduce of CO2 to CO photocatalytically using visible light will be described. Irradiation of saturated CO2 solutions of dimethylformide:triethanolamine (DMF:TEOA) containing two different dyes are ... -
Photochemical and photophysical properties of ruthenium(II) bis-bipyridine bis-nitrile complexes: Photolability
(Elsevier, 2010-08-10)The electrochemical and photophysical properties of two bis-nitrilo ruthenium(II) complexes formulated as [Ru(bpy)2(L)2](PF6)2, where bpy is 2,2′-bipyridine and L is AN = CH3CN and sn = NC–CH2CH2–CN, have been investigated. ... -
Photochemical charge separation in closely positioned donor-boron dipyrrin-fullerene triads
(John Wiley and Sons, 2011-02-14)A series of molecular triads, composed of closely positioned boron dipyrrin-fullerene units, covalently linked to either an electron donor (donor(1) -acceptor(1) -acceptor(2) -type triads) or an energy donor (antenna-donor(1) ... -
Photochemical charge separation in supramolecular phthalocyanine-multifullerene conjugates assembled by crown ether-alkyl ammonium cation interactions
(American Chemical Society, 2010-10-21)Self-assembled phthalocyanine-multifullerene donor-acceptor conjugates have been formed by crown ether-ammonium cation dipole-ion binding strategy to probe the photochemical charge separation. To achieve this, phthalocyanine ... -
Photochemistry and photophysics of coordination compounds: rhenium
(Springer Berlin Heidelberg, 2007)This review describes recent advances in the photochemistry of complexes of the element rhenium. It covers not only fundamental chemistry but the recent applications of these complexes to supramolecular chemistry, carbon ... -
Photoinduced charge separation in three-layer supramolecular nanohybrids: fullerene-porphyrin-SWCNT
(Royal Society of Chemistry, 2012-12-14)Photoinduced charge separation processes of three-layer supramolecular hybrids, fullerene-porphyrin-SWCNT, which are constructed from semiconducting (7,6)- and (6,5)-enriched SWCNTs and self-assembled via pi-pi interacting ... -
Photoinduced electron transfer in a Watson-Crick base-paired, 2-aminopurine:uracil-C60 hydrogen bonding conjugate
(Royal Society of Chemistry, 2007-02-07)A fluorescent reporter molecule, 2-aminopurine was self-assembled via Watson-Crick base-pairing to a uracil appended fullerene to form a donor-acceptor conjugate; efficient photoinduced charge separation was confirmed by ... -
Photophysical, spectroscopic, and computational studies of a series of Re(I) tricarbonyl complexes containing 2,6-dimethylphenylisocyanide and 5- and 6-derivatized phenanthroline ligands
(American Chemical Society, 2005-04-04)The ligand 2,6-dimethylphenylisocyanide (CNx) forms six complexes of the formula [Re(CO)3(CNx)(L)]+, where L = 1,10-phenanthroline (1), 5-chloro-1,10-phenanthroline (2), 5-nitro-1,10-phenanthroline (3), 5-methyl-1,10-phe ... -
Photosynthetic antenna-reaction center mimicry: sequential energy- and electron transfer in a self-assembled supramolecular triad composed of boron dipyrrin, zinc porphyrin and fullerene
(American Chemical Society, 2009-07-30)A self-assembled supramolecular triad, a model to mimic the photochemical events of photosynthetic antenna-reaction center, viz., sequential energy and electron transfer, has been newly constructed and studied. Boron ... -
Photosynthetic reaction center mimicry of a "special pair" dimer linked to electron acceptors by a supramolecular approach: self-assembled cofacial zinc porphyrin dimer complexed with fullerene(s)
(John Wiley and Sons, 2007-01-01)Biomimetic bacterial photosynthetic reaction center complexes have been constructed using well-defined self-assembled supramolecular approaches. The "special pair" donor, a cofacial porphyrin dimer, was formed via potassium ... -
Photosynthetic reaction center mimicry: low reorganization energy driven charge stabilization in self-assembled cofacial zinc phthalocyanine dimer-fullerene conjugate
(American Chemical Society, 2009-07-01)By employing well-defined self-assembly methods, a biomimetic bacterial photosynthetic reaction center complex has been constructed, and photoinduced electron transfer originating in this supramolecular donor-acceptor ... -
Physical, photophysical and structural properties of ruthenium(II) complexes containing a tetradentate bipyridine ligand
(Royal Society of Chemistry, 2008-06-28)The focus of this report is the synthesis and properties of two new analogues of ruthenium(ii) tris-bipyridine, a monomer and dimer. The complexes contain the ligand 6,6'-(ethan-1,2-diyl)bis-2,2'-bipyridine (O-bpy) which ... -
Physico-chemical studies of interactions of water soluble brominated porphyrins with DNA
(Wichita State University. Graduate School., 2006-04-28) -
Plausible molecular mechanism for activation by fumarate and electron transfer of the dopamine beta-mono-oxygenase reaction
(American Chemical Society, 2002-10-01)A series of fumarate analogues has been used to explore the molecular mechanism of the activation of dopamine beta-mono-oxygenase by fumarate. Mesaconic acid (MA) and trans -glutaconic acid (TGA) both activate the enzyme ...