利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

70 条记录 (耗时 0.027 秒)

    ALKALI METAL QUATERNARY NANOMATERIALS
    3.
    发明申请
    ALKALI METAL QUATERNARY NANOMATERIALS 有权

    公开(公告)号：US20230112176A1

    公开(公告)日：2023-04-13

    申请号：US17910022

    申请日：2021-03-11

    申请人： UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG

    发明人： Nosipho MOLOTO ,  Kalenga MUBIAYI ,  Grace NGUBENI

    IPC分类号： H01G9/20 ,  H01G9/00 ,  C01B19/00 ,  C01G19/00

    摘要： This disclosure relates to the manufacture an alkali metal quaternary crystalline nanomaterial. an alkali metal quaternary crystalline nanomaterial having general Formula A (I2-II-IV-VI4); and wherein I is sodium (Na) or lithium (Li), II and IV are Zn or Sn, and VI is a chalcogens selected from the group comprising: sulphur (S), selenium (Se) or tellurium (Te). The crystal phase of the alkali metal quaternary crystalline nanomaterial may be a primitive mixed Cu—Au like structure (PMCA) and may have a space group: P42m. The nanomaterials may be adapted to provide a solar cell. Methods of manufacture are also provided.

    MONOLITHIC DRUG DELIVERY SYSTEM
    8.
    发明申请
    MONOLITHIC DRUG DELIVERY SYSTEM 审中-公开
    单体药物递送系统

    公开(公告)号：US20140148495A1

    公开(公告)日：2014-05-29

    申请号：US14057786

    申请日：2013-10-18

    申请人： University of the Witwatersrand, Johannesburg

    发明人： Sibongile Ruth Sibambo ,  Viness Pillay ,  Yahya Essop Choonara

    IPC分类号： A61K9/00

    CPC分类号： A61K9/2009 ,  A61K9/0024 ,  A61K9/204

    摘要： An improved monolithic drug delivery dosage form releases a pharmaceutically active agent at a predetermined rate. The dosage form comprises a salted-out or crosslinked polymer and a pharmaceutically active agent. The salted-out or crosslinked polymer functions to polymerically entangle the pharmaceutically active agent but, progressively relaxes on contact with an aqueous medium in use to release the pharmaceutically active agent at a predetermined rate.

    摘要翻译： 改进的整体药物递送剂型以预定的速率释放药物活性剂。 该剂型包含盐析或交联的聚合物和药物活性剂。 盐析或交联的聚合物用于使药物活性剂聚合缠结，但是在使用中与水性介质接触时逐渐松弛，以预定的速率释放药物活性剂。

    Supramolecular Functional Materials
    9.
    发明申请
    Supramolecular Functional Materials 审中-公开
    超分子功能材料

    公开(公告)号：US20130184421A1

    公开(公告)日：2013-07-18

    申请号：US13789193

    申请日：2013-03-07

    申请人： University of the Witwatersrand

    发明人： Manuel Antonio Fernandes

    IPC分类号： C08F130/04 ,  C07F3/06 ,  C07F15/06 ,  C08G79/00

    CPC分类号： C08F130/04 ,  C07F3/06 ,  C07F15/065 ,  C08G79/00 ,  C08G83/008

    摘要： The field of this invention relates to supramolecular functional materials, particularly to coordination networks, more particularly to coordination polymers, more particularly to metal based one-dimensional coordination polymers. The metal based one-dimensional coordination polymers comprises a repeat unit [L1-M-L2]n where L1 and L2 are one of a plurality of carboxylate ligands and L1 can be the same as L2, M is a metal, particularly a transition metal, and n is an integer from 1 to infinity. The metal based one-dimensional coordination polymers display one or more physico-chemical properties giving at least one functionality to the supramolecular material. Furthermore, a method of forming the metal based one-dimensional coordination polymers is provided by a chemical reaction between said organic ligand and said metal where said method comprises at least one selectable chemical reaction condition from the group comprising: volume of reaction vessel, material composition of reaction vessel, temperature, pressure, humidity and gas defining an atmosphere inside reaction vessel.

    摘要翻译： 本发明的领域涉及超分子功能材料，特别涉及配位网络，更具体地涉及配位聚合物，更特别涉及基于金属的一维配位聚合物。 基于金属的一维配位聚合物包括重复单元[L1-M-L2] n，其中L1和L2是多个羧酸盐配体之一，L1可以与L2相同，M是金属，特别是过渡金属 ，n是从1到无穷大的整数。 基于金属的一维配位聚合物显示出一种或多种给予超分子材料至少一种官能团的物理化学性质。 此外，通过所述有机配体和所述金属之间的化学反应提供形成金属的一维配位聚合物的方法，其中所述方法包括至少一种可选择的化学反应条件，其包括：反应容器的体积，材料组成 的反应容器，温度，压力，湿度和气体，限定反应容器内的气氛。