Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"Dithiol"”.
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New compositions containing carbon and sulfur
… reagent with HCl resulted in formation of the dithiol $\rm C\sb3S\sb5H\sb2$. Thermolysis of the dithiol gave the carbon sulfide $\rm C\sb6S\sb8$. Both $\rm C\sb6S\sb{10}$ and $\rm C\sb6S\sb8$ were converted to dioxo derivatives by treatment with Hg$\sp{2+}$. For $\rm C\sb6S\sb{10}$, the O for S …
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A 450K arsenite-binding protein of the rabbit liver cytosol
… arsenic affinity chromatography suggested a dithiol-like binding site. Amino acid composition indicated less than 0.5 mol% cysteine residues and implied that other thiol-containing functional groups may be used to complex arsenite. Arsenite inhibits enzymes which contain protein-bound lipoic …
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Regulatory and self-protection implications of gliotoxin bisthiomethylation in Aspergillus fumigatus
… bis-thiomethyltransferase (GtmA), which converts dithiol gliotoxin to bis(methyl)gliotoxin. Disruption of this non-gli cluster encoded methyltransferase completely abrogated organismal ability to biosynthesize and secrete bis(methyl)gliotoxin, while gliotoxin production and secretion were …
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The characterization and chemistry of {\it mono\/}- and {\it bis\/}-cyclopentadienyl titanium thiolates.
The reactions of Cp$\rm\sb2TiCl\sb2$ with the dithiols, HS(CH$\sb2)\sb{\rm n}$SH (n = 2, 3) in the presence of imidazole proceed with formation of imidazole$\cdot$HCl affording relatively insoluble titanocene dithiolate derivatives 2.1 and 2.2 respectively. Alternatively, 2.2 can be prepared by the …
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Investigation of anticancer activity and mechanisms of Meso- 2,3-dimercaptosuccinic acid (DMSA) in glioblastoma cell lines
… its metal binding capability through its unique dithiol structure. Hence our group is interested in identifying clinically used dithiol compounds which are structurally similar to DS and has metal binding ability to repurpose them as potential anticancer drugs. This study focussed on determining …
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Development of tools for single molecule peptide fluorosequencing
… in the two-step labeling of glutamic acid with dithiol-aldehyde labeling (Chapter 4). A fluorophore linker with a 1,3-dithiol is synthesized for the labeling of aldehydes, which was done in an efficient manner by deprotecting the aldehyde and labeling in one step. Another two-step labeling …
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Enzyme activities associated with gonadotropic hormones
… The possibility of LH possessing intrinsic dithiol-disulphide interchange activity was investigated further using [3H]-iodoacetic acid. RNase/LH were incubated in an attempt to quench a dithiol intermediate. Preliminary results suggested that the presence of LH in this reaction increased the …
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Distribution of thiols in the northwest Atlantic Ocean
… of copper complexes suggests that Cu(I)-dithiol complexes may be the dominant surface ocean copper and thiol species. Mercury-thiol complexes were also present in thermodynamically modeled seawater, which may provide a vector for mercury uptake in the surface ocean.
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Distribution of thiols in the northwest Atlantic Ocean
… of copper complexes suggests that Cu(I)-dithiol complexes may be the dominant surface ocean copper and thiol species. Mercury-thiol complexes were also present in thermodynamically modeled seawater, which may provide a vector for mercury uptake in the surface ocean.
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Polarizing agents for high-frequency Dynamic Nuclear Polarization : development and applications
… 1 ,2-d:4,5-d']bis( 1 ,3)dithiol-4-yl, improve the probability of the correct EPR frequency separation compared to TEMPO by itself.
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Real time density functional simulations of quantum scale conductance
… the dynamic transport behavior of benzene-1,4-dithiol (BDT) coupled to gold leads and find that both the transient current and device charge density fluctuate with time,. This suggests that the steady-state assumption of the NEGF method may not be accurate.
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Hybrid light emitting diodes based on solution processed polymers, colloidal quantum dots, and colloidal metal nanoparticles
… emission into near-IR range. As we show, the dithiol molecules used to cross-link quantum dots determine the optical and electrical property of the resulting thin films. By choosing a proper ligand for quantum dot ligand exchange, a high performance polymer/quantum dot hybrid LED is …
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Síntesis de nuevas sondas cromogénicas a partir de heterociclos de azufre y nitrógeno
… introduces the importance of the systems 1,2-dithiol-3-thione in the development of a new type of chemical sensors with a great interest from the environmental point of view. The modification of the starting products, through a rational design has allowed obtaining selective chromogenic probes …
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Kinetic studies of redox and related reactions of some new isoalloxazines
… kinetic studies of their reactions with a dithiol, reduced nicotinamide and sulphite were made. A new general synthesis is described for the preparation of o-nitro-(N-alkylamino) aromatic compounds via nucleophilic displacement by alkylamine of a methoxy group ortho to a nitro group. Two …
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Chelating compounds as potential flash rust inhibitors and melamine & aziridine cure of acrylic colloidal unimolecular polymers (CUPs)
… in three different tautomeric forms including -dithiol and -dithione. The relative stability of each form as well as the synthesis and characterization of the structures of mono- and dialkylated forms of 5-mercapto-1,3,4-thiadiazole-2(3H)-thione (MTT) were examined. The methods of X-ray …
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IDENTIFICATIN AND CHARACTERIZATION OF PATHOGENICITY GENES IN FUSARIUM VIRGULIFORME, THE CAUSAL AGENET OF SUDDEN DEATH SYNDROME (SDS) IN SOYBEAN
… time the identification and characterization of dithiol glutaredoxin gene in <italic>F. virguliforme</italic> . The role of FvGRX2 in the fungal defense to phytoalexin, glyceollin and induced oxidative burst was also investigated by generating an<italic>FvΔgrx2</italic> knockout. In order to …
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Controlled release microneedle technologies for the enhanced immunogenicity of subunit vaccines
… crosslinked with poly(ethylene glycol) dithiol to enable controlled release. Importantly, degradable ester bonds are incorporated into the network to allow for tunability. Finally, poly(vinyl alcohol) microneedles were vapor-phase crosslinked to form reversible acetal bonds, and these …
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Investigations into Protein-Surface Interactions via Atomic Force Microscopy and Surface Plasmon Resonance
… matrix with AFM. This involved patterning a dithiol into a methyl resist matrix and addition of maleimide-NTA with coordination to nickel ions and histidine tags in the protein. The chemistry of this process was validated with SPR and fluorescence microscopy. Information on the kinetic of …
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Plasma-enhanced molecular layer deposition (PEMLD) of boron carbide dielectrics from carboranes for interconnect and patterning applications
… different types of carborane derivatives: 1,2-dithiol-o-carborane on copper, 9-thiol-m-carborane on copper, and 1,2-bis(hydroxymethyl)-o-carborane on SiO₂. Monolayer formation is supported by an increase in hydrophobicity observed via contact angle measurements, an increase in thickness …
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