Abstract:
The present invention relates to an organic electroluminescence device containing a light emitting metallic compound of Chemical Formula 1. In the Chemical Formula 1, M is selected from Ir, Pt, Rh, Re, and Os, and m is 2, provided that m is 1 when M is Pt.
Abstract:
Metal complex of Nickel (II) containing a dithio-based ligand have been synthesized and characterized by elemental analysis, mass spectrometry, Proton NMR and FT-IR spectrometry. A single crystal X-ray structure of the cadmium complex has been analyzed. The metal complex was subjected to biological tests on falcipain-2 (FP-2) and falcipain-3 (FP-3) cysteine protease enzymes from the malaria parasite Plasmodium falciparum. They were further tested in vitro against chloroquine resistant strain (W2). Whereas the potency of the metal complexes was weaker than the control regarding the FP-2 and FP-3, the potency of metal complexes was found to be exceedingly greater than the control when tested against the chloroquine resistant strain (W2) with a strength ratio of (1.4). This paper describes the synthesis, characterization and biological results of the said metal complex containing deprotonated 3-[1-(2-pyridyl) ethylidene] hydrazinecarbodithioate ligand.
Abstract:
Disclosed herein is a class of tunable phenylacetylene compounds as well as compositions and methods for their use as host compounds for ligand binding. In certain examples the hosts report binding events by exhibiting altered spectroscopic properties, such as different fluorescent emission spectra.
Abstract:
The present invention relates to a method for the preparation of a functionalized nano size transition metal oxide or sulfide particle comprising the steps of (a) providing a ternary solvent system comprising a polar solvent, a non-polar solvent and an intermediate solvent allowing miscibility of all three components; (b) providing a mixture of a transition metal salt and a ternary solvent; (c) providing a mixture of a suitable source of oxide or sulfide and the ternary solvent; (d) providing a mixture of a non-polar end capping agent and the non-polar solvent; (e) mixing the mixtures; and (f) recovering the resultant functionalized nano size transition metal oxide or sulfide particle. The invention further relates to non-polar end capped nano sized transition metal oxide or sulfide particle so produced and the use of such particles.
Abstract:
An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.
Abstract:
A new system accomplishes easy, interchangeable production of multiple PET radiopharmaceuticals through the use of a simplified eluant-only generator and a kit based synthesis technique employing lyophilized or freeze dried ligand. Thus, by simply switching the lyophilized ligand vial kit, any number of 62Cu-labeled radiopharmaceuticals (62Cu-ligand) can be interchangeably synthesized with only one 62Zn/62Cu generator.
Abstract:
The present invention relates to a method for validating the synthesis of arrays, in particular of biopolymers, by step-by-step construction from protected and labeled synthesis building blocks.
Abstract:
A metal complex dye is disclosed, containing a dye as a ligand represented by the following formula (1). A color toner and a color filter containing the metal complex dye are also disclosed. formula (1)
Abstract:
The invention relates to compounds of the metal dihydrocarbyl-dithiophosphyl-dithiophosphate type, their manufacture and use. These compounds can be represented by the general formula: ##STR1## wherein R is a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, X and Y are each a hydrogen atom or a monovalent substantially hydrocarbon-containing radical of 1 to 30 carbon atoms, M is a metal selected from zinc, cadmium, lead and antimony or an oxygen- and/or sulfur-containing molybdenum complex, and n is the valence of said metal M. The compounds according to the invention can be used as additives for lubricants wherein they act as a very efficient wear preventive.