Method of synthesizing metal-ascorbic acid crystals

    公开(公告)号:US10774095B2

    公开(公告)日:2020-09-15

    申请号:US14963897

    申请日:2015-12-09

    IPC分类号: C07F1/08

    摘要: The invention provides metal-ascorbic acid crystals and a method for synthesizing the metal-ascorbic acid crystals. The metal in the metal-ascorbic acid crystals is one of copper (Cu), gold (Au) and silver (Ag). The method for synthesizing the metal-ascorbic acid crystals includes sonicating a solution of ascorbic acid and a solvent in dark to obtain a clear solution, wherein the solvent is one of dimethylformamide (DMF) and dimethyl sulfoxide (DMSO). A metal salt is added to the clear solution, wherein the metal salt is one of copper (II) sulfate pentahydrate (CuSO4.5H2O), gold (III)-chloride (AuCl3), and silver sulfate (Ag2SO4). The clear solution is sonicated after adding the metal salt to obtain a reaction mixture. Thereafter, the reaction mixture is heated in dark. The reaction mixture is treated to facilitate solvent extraction of the metal-ascorbic acid. Finally, the metal-ascorbic acid is crystallized.

    METHODS OF MAKING NANOSTRUCTURED METAL-ORGANIC FRAMEWORKS

    公开(公告)号:US20200079796A1

    公开(公告)日:2020-03-12

    申请号:US16537806

    申请日:2019-08-12

    摘要: Disclosed herein are methods of making nanostructured metal-organic frameworks. The methods include contacting a homogenized ligand solution with a homogenized aqueous metal salt solution at room temperature to form a mixture; and agitating the mixture for an amount of time to thereby form the nanostructured metal-organic framework at room temperature; wherein the homogenized ligand solution comprises a ligand dispersed substantially homogenously in a solvent selected from the group consisting of water, ethanol, isopropanol, n-propanol, lactic acid, and combinations thereof; and wherein the homogenized aqueous metal salt solution comprises a metal salt dispersed substantially homogenously in an aqueous solvent. Also disclosed herein are nanostructured metal-organic frameworks made by the methods described herein. Also disclosed herein are articles of manufacture comprising nanostructured metal-organic frameworks made by the methods described herein, such as filters, respirators, gas masks, human protection devices, catalysts, and catalyst supports.

    Metal Delivery Agents and Therapeutic Uses of the Same

    公开(公告)号:US20190298734A1

    公开(公告)日:2019-10-03

    申请号:US16433030

    申请日:2019-06-06

    摘要: The present invention relates to metal complexes, processes for their preparation and their use as pharmaceutical or veterinary agents, in particular for the treatment of conditions in which metal delivery can prevent, alleviate or ameliorate the condition. There are a number of clinical conditions which are caused by or associated with abnormal levels of metals (typically low metal levels). Conditions in of this type include cancer and conditions characterised by or associated with oxidative damage, more specifically neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease or Huntington's disease. The invention also relates to ligands useful in the preparation of metal complexes of this type.