12 results about "Gold Compounds" patented technology

Provided herein are methods composition for treating lung cancer in a subject in need thereof, the method comprising administering to the subject an effective amount of an imidazolate gold compound according to Formula I, or a pharmaceutically acceptable salt, racemate, or enantiomer thereof, wherein Formula I is a gold complex having a structure Au(L)(L′)n, wherein: n is an integer from 1 to 3; L is an imidazolyl-based N-heterocyclic carbene (NHC) ligand; and each L′ is independently selected from an imidazolyl-based NHC ligand, a triaryl phosphine, or a halide.

The objective is to provide an aqueous solution of gold(I) compounds that can be used as a gold source for gold plating solutions without causing precipitation over a wide pH range and with long-term oxidation stability. [Solution] An aqueous solution of a gold(I) compound having a structure represented by the following general formula (1), wherein the cyanide concentration is 500 mg / L or less, the sulfite ion concentration is 1000 ppm by mass or less, and the halogen ion concentration is 1000 mg / L or less. RS - -Au-S-(CH2) n -SO3 - ...(1) (In formula (1), R is an organic group having at least one group selected from the group consisting of a sulfonic acid group, a carboxyl group, and an amino group at its terminal or side chain, and n is an integer from 3 to 10.)

The application discloses a kind of integrated circuit chip package lead frame's electroless gold plating solution and its gold plating method, it is related to integrated circuit chip packaging field.Therein, electroless gold plating solution is following concentration component aqueous solution: water-soluble gold compound, with Au, concentration is 1-1.5g / L;Sodium hypophosphite 10~20g / L;Malic acid 15~20g / L;Citric acid 15~20g / L;N,N'-bis (2-hydroxyethyl) ethylenediamine 10~15g / L;Triammonium citrate 15~20g / L;EDTA-2Na 5~10g / L;5,5'-dimethyl hydantoin 5~10g / L;Metal ion catalyst, with metal ion, concentration is 2~3ppm;Mercaptoimidazole 0.01~0.015g / L;Hexamethylenetetramine 5~10g / L.The electroless gold plating solution in the application can consider stability, high deposition rate and plating layer deposition uniformity.

The invention discloses a preparation method of mesoporous plasmon nanoparticles and application of the mesoporous plasmon nanoparticles in an optical excitation gas sensor. The preparation method of the nanoparticles comprises the following steps: dissolving a gold-containing compound in water, adding a reducing agent, and heating for reaction to obtain a colloidal gold solution; adding water and a second reducing agent, and stirring to obtain a gold nanoparticle aqueous dispersion; adding an organic solvent, a surfactant and a pore expanding agent, emulsifying, adding a dopamine precursor, adjusting the pH to be alkaline to form a mesoporous polydopamine shell layer, and washing and drying; and finally, dipping in a tin-containing compound solution, and carrying out calcination treatment. The prepared mesoporous plasmon nanoparticles can be applied to preparation of optical excitation gas sensors. The sensor has high sensitivity and high selectivity response to NO2 gas, can stably work at room temperature, and shows excellent response performance to the NO2 gas concentration range of 0.2-10 ppm.

The application discloses synthesis of a novel Schiff base gold (III) compound and antibacterial application thereof, and belongs to the technical field of medicine preparation; gold sodium aurothiomalate has significant antibacterial activity, but the Au-S bond thereof is easily broken by intracellular reducing thiol, and the gold sodium aurothiomalate is metabolized before reaching a target point to produce toxic side effects; based on the gold sodium aurothiomalate, developing a gold compound with stronger stability is one of strategies for overcoming drug-resistant bacteria; the Schiff base itself has antibacterial activity, and after being combined with gold (III) ions, the Schiff base can stabilize gold atoms and improve the activity of the gold atoms; in vitro antibacterial activity shows that Au6 and Au13 have significant antibacterial advantages on carbapenem and polymyxin-resistant Klebsiella pneumoniae, the minimum inhibitory concentration (MIC) is 10 micromoles, and the antibacterial activity is at least 16 times higher than that of the gold sodium aurothiomalate; in vivo antibacterial activity experiments prove that Au6 and Au13 can reduce mouse skin infection and promote wound healing, and can prolong the survival time of abdominal infection mice, and have important practical application value.

Presented is a method for making a catalyst that can produce vinyl acetate with very high selectivity while ensuring high catalyst activity. A method for preparing a catalyst for the production of vinyl acetate comprising a carrier, copper, palladium, gold and acetate, the method comprising the following steps: Step 1) a step for impregnating the carrier with an alkaline solution; Step 2) a step for impregnating the carrier with a solution containing a copper-containing compound, a palladium-containing compound and a gold-containing compound; Step 3) a step for carrying out a reduction operation; and Step 4) a step for causing the carrier to carry acetate.

The application relates to the technical field of metal organic complexes, in particular to a chiral Au 16 Metal complex and preparation method and application thereof. By using a specific chiral 1,4-di (dithiocarbamate) -2-methyl piperazine potassium salt ligand, a specific chiral Au 16 Metal complex, 16 Au atoms in the structure of the metal complex form an Au 16 Macrocycle, 16 gold atoms form a polynuclear gold compound, and the chiral Au 16 Drug activity of the metal complex on cancer cells. In in-vitro cell experiments, the chiral Au 16 The metal complex has good in-vitro anticancer activity in different cancer cell lines. Meanwhile, due to the Au-Au bonding, a macrocycle structure is formed, and the chiral Au 16 Cytotoxicity of the metal complex on normal cells.

The invention belongs to the technical field of fertilizers, and particularly relates to a multi-enzyme gold biological organic enzyme agricultural fertilizer. 8-12 parts of a mesoporous multienzyme gold compound, 10-15 parts of a temperature-sensitive enzyme nutrient compound, 3-5 parts of growth-promoting rhizobacteria microspheres, 62-76 parts of an organic carrier, 2-4 parts of a trace element additive and 1-2 parts of a pH buffer agent; wherein the mesoporous multienzyme gold compound is formed by compounding a functionalized silicon carbon carrier and a multienzyme gold compound according to a mass ratio of 1: 2; the temperature-sensitive enzyme nutrient compound is formed by compounding poly N-isopropylacrylamide, a biological organic enzyme and a slow-release nutrient according to a mass ratio of 2: 1: 3; the growth-promoting rhizobacteria microspheres are microspheres of a double-layer structure, and the growth-promoting rhizobacteria microspheres comprise the following components in parts by weight: 45-55 parts of an inner-layer bacterial strain protection layer and 45-55 parts of an outer-layer bacteriostatic protection layer.

The presently-disclosed subject matter includes useful water-soluble gold containing compounds and compositions, and methods of making and methods of using such compounds and compositions.

The present invention relates to a catalyst for preparing vinyl acetate and a preparation method therefor, and the use thereof. The preparation method comprises the following steps: kneading, drying, and shaping an ultrafine silica gel powder, ultrafine diatomaceous earth, a silica sol, and a boron compound at a weight ratio of 100: (5-20): (10-60): (0.1-1), followed by calcination at 150-650ºC for 1-6 h to prepare a boron-doped composite SiO2 carrier; subjecting the carrier to incipient wetness impregnation with rolling with a solution of palladium and gold compounds at a Pd / (Au+Pd) molar ratio of 0.76-0.93 and a loading amount of 0.5%-1% relative to the carrier mass, followed by drying; treatment with an alkaline solution for 0.5-30 h, then drying, and reduction at 300-650ºC in a nitrogen-hydrogen atmosphere for 1-6 h, and washing same with water until chlorine-free, followed by drying; preparing a dilute sol by mixing copper acetate and cesium oxide at a Cu / (Re+Cu) molar ratio of 0.93-0.97 and a loading amount of 0.3%-1% with 0.5%-3% aluminum phosphate, followed by dip coating and drying; impregnating with a potassium acetate solution at a loading amount of 0.2%-7.5%, and performing a heat treatment at a negative pressure at 60-200ºC for 1-6 h, to obtain a highly stable, long-life catalyst, which has high strength and few by-products.

This invention discloses a method for preparing gold nanospheres. The principle of this invention is based on the confinement effect of carbon cloth on the attached gold nanospheres, thereby inhibiting the agglomeration and fusion of nanoparticles under high-temperature conditions and ensuring the stable preparation of gold nanospheres. The specific preparation process is as follows: First, gold is attached to carbon cloth in the form of an oxide from a precursor solution under hydrothermal conditions. Simultaneously, the dried carbon cloth with the attached gold compound is reduced at high temperature in a tube furnace. Because the gold compound is tightly attached to the surface of the carbon cloth, the problem of gold nanosphere agglomeration and fusion is effectively avoided, and a large number of gold nanosphere particles are obtained after reduction attached to the surface of the carbon cloth. Finally, dispersed gold nanosphere particles are obtained by ultrasonication or combustion.

The invention relates to a gold-containing nano-enzyme for treating atopic dermatitis and a pharmaceutical preparation thereof, the gold-containing nano-enzyme is prepared from a manganese-zinc metal organic framework nano-enzyme and a gold-containing compound, and the manganese-zinc metal organic framework nano-enzyme is prepared from a manganese salt, a zinc salt and a metal organic framework material. According to the invention, an integrated multi-enzyme simulation platform is constructed, the hydrogel is adopted to provide preparation support for treatment of atopic dermatitis, the biocompatibility and the physical barrier function of the material are enhanced, and a solution is provided for local management of atopic dermatitis.