Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 1259-1278 of 1299
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UV resonance Raman spectroscopy of TTR(105-115): Determination of the pKa of tyrosine
(2009)The 11-residue peptide fragment from transthyretin (TTR(105-115)) has been investigated using UV resonance Raman spectroscopy. Excitation at 239.5 nm reveals selective enhancement of scattering from two Tyr residues. The ...
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UV resonance Raman study of TTR(105-115) structural evolution as a function of temperature
(2011)UV resonance Raman spectroscopy was used to probe the temperature dependence of the conformation of TTR(105-115) in solution. Resonance Raman spectra with excitation at 239.5 nm, show an increase in the absolute resonance ...
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Conference Object
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Article
Valorization of agricultural wastes could improve soil fertility and mitigate soil direct N2O emissions
(2019)The emerging need for sustainable management of the increasing quantities of urban and industrial organic wastes creates opportunities for the development of alternative strategies for the improvement of degraded soils. ...
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Vanadium chemistry and biochemistry of relevance for use of vanadium compounds as antidiabetic agents
(1995)The stability of 11 vanadium compounds is tested under physiological conditions and in administration fluids. Several compounds including those currently used as insulin-mimetic agents in animal and human studies are stable ...
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Vanadium(iv/v)-p-dioxolene temperature induced electron transfer associated with ligation/deligation of solvent molecules
(2013)Reaction of an aqueous solution of NaVO3 or a methanol solution of [VO(acac)2] with 2,5-bis((bis(2-hydroxyethyl)amino)methyl) hydroquinone, H6bdeah, results in the formation of two major vanadium species characterized by ...
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Article
Vanadium(V) compounds with the bis-(hydroxylamino)-1,3,5-triazine ligand, H2bihyat: Synthetic, structural, and physical studies of [V 2VO3(bihyat)2] and of the enhanced hydrolytic stability species cis-[VVO2(bihyat)] -
(2008)Reaction of the ligand 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5- triazine (H2bihyat) with NaVVO3 in aqueous solution followed by addition of either Ph4PCl or C(NH 2)3Cl, respectively, gave the mononuclear vanadium(V) ...
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Article
Vanadium(V) hydroxylamido complexes: Solid state and solution properties
(1997)A novel series of vanadium(V) hydroxylamido complexes with weak ligands including glycine, [VO-(NH2O)2(Glycine)]· H2O (1)
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Article
Vanadyl(IV)-amide binding. The preparation and X-ray crystal structure of [VO(pycac)] {H2pycac=N-[2-(4-oxopentan-2-ylideneamino)phenyl] pyridine-2-carboxamide}
(1990)Reaction of H2pycac with bis(pentane-2,4-dionato)oxovanadium(IV) gives the title compound which is the first example of a vanadyl(iv) complex containing a vanadium-amide bond
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Vibrational sum frequency generation spectroscopic investigation of the interaction of thiocyanate ions with zwitterionic phospholipid monolayers at the air-water interface
(2009)Thiocyanate (SCN-) is a highly chaotropic anion of considerable biological significance, which interacts quite strongly with lipid interfaces. In most cases it is not exactly known if this interaction involves direct binding ...
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Volatile emissions during storing of green food waste under different aeration conditions
(2016)Controlled field experiments were carried out for monitoring the emissions of three plastic commercial household waste bins, which were adapted for studying the effect of aeration process in the evolved volatiles, during ...
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Conference Object
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Article
Volatolomics: A broad area of experimentation
(2019)Chemical analysis (detection and monitoring) of compounds associated with the metabolic activities of an organism is at the cutting edge of science. Volatile metabolomics (volatolomics) are applied in a broad range of ...
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Article
Water solubility, antioxidant activity and cytochrome C binding of four families of exohedral adducts of C60 and C70
(2007)Over the past decade, surface-modified, water soluble fullerenes have been shown by many different investigators to exhibit strong antioxidant activity against reactive oxygen species (ROS) in vitro and to protect cells ...
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Article
Water-gas shift reaction on Pt/Ce1- xTixO 2-δ: The effect of Ce/Ti ratio
(2013)Pt nanoparticles (1.2-2.0 nm size) supported on Ce1-xTi xO2-δ (x = 0, 0.2, 0.5, 0.8, and 1.0) carriers synthesized by the citrate sol-gel method were tested toward the water-gas shift (WGS) reaction in the 200-350 C range. ...
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Article
Water-soluble ABC triblock copolymers based on vinyl ethers: Synthesis by living cationic polymerization and solution characterization
(1997)Water-soluble ABC triblock copolymers of methyl vinyl ether (MVE), ethyl vinyl ether (EVE), and methyl tri(ethylene glycol) vinyl ether (MTEGVE) of various block sequences and carrying 20 monomer units in each block were ...
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Article
Water-stable 2-D Zr MOFs with exceptional UO22+ sorption capability
(Royal Society of Chemistry, 2019-12-02)Two new 8-connected 2-D MOFs, UCY-13 and UCY-14, based on Zr6 secondary building units (SBUs) and angular dicarboxylate ligands are reported. UCY-13 and UCY-14 display remarkable stability in various types of aqueous media, ...
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Article
Well-defined networks with precisely located cleavable sites: Structure optimization and core functionality determination
(2008)A study was conducted to determine the core functionality of well-defined covalent polymer networks with precisely located cleavable sites. Covalent polymer networks consists of chemically interconnected polymer chains ...
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Conference Object
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Well-defined polymers from biosourced monomers: The case of 2-(methacryloyloxy)ethyl tiglate
(2010)Tiglic acid esters are naturally derived olefins of pleasant odor but incapable of undergoing free-radical polymerization due to the steric hindrances conferred by the β-methyl group. In an effort to incorporate these green ...