Indicator for oxygen generation
    3.
    发明授权
    Indicator for oxygen generation 有权
    氧气产生指标

    公开(公告)号:US08652531B2

    公开(公告)日:2014-02-18

    申请号:US13555332

    申请日:2012-07-23

    IPC分类号: A01N39/00

    摘要: There is provided on-demand, oxygen generating topical compositions having a built-in indicator specifically to indicate a color change upon the complete mixing of the oxygen precursor and catalyst. The first part of the composition contains a carrier and manganese dioxide (MnO2) nanoparticles. The second part of the composition comprises the oxygen precursor; hydrogen peroxide. When the two parts, one with manganese dioxide nanoparticles and exhibiting a characteristic color, (e.g. yellow brown) and the second part with hydrogen peroxide are mixed together, the color imparted by the manganese dioxide nanoparticles essentially disappears and the final composition (enriched with oxygen) either appears colorless or takes on the original color of the catalyst. Thus, the manganese dioxide catalyst nanoparticles themselves serve as the colorimetric indicator of peroxide decomposition to oxygen, precluding the need for an external colorant. Manganese dioxide particles that are not nanoparticles fail to exhibit this color changing phenomenon.

    摘要翻译: 提供了按需氧气产生的局部组合物,其具有专门用于指示氧气前体和催化剂完全混合后的颜色变化的内置指示剂。 组合物的第一部分含有载体和二氧化锰(MnO 2)纳米颗粒。 组合物的第二部分包含氧前体; 过氧化氢。 当这两个部分,一个二氧化锰纳米粒子和具有特征颜色(例如黄棕色)和第二部分与过氧化氢混合在一起时,由二氧化锰纳米颗粒基本上消失的颜色和最终组成(富含氧气 )呈现无色或呈现催化剂的原色。 因此,二氧化锰催化剂纳米颗粒本身用作过氧化物分解成氧的比色指示剂,排除了外部着色剂的需要。 不是纳米颗粒的二氧化锰颗粒不能显示出这种变色现象。

    Indicator for Oxygen Generation
    4.
    发明申请
    Indicator for Oxygen Generation 有权
    氧发生指标

    公开(公告)号:US20130028983A1

    公开(公告)日:2013-01-31

    申请号:US13555332

    申请日:2012-07-23

    摘要: There is provided on-demand, oxygen generating topical compositions having a built-in indicator specifically to indicate a color change upon the complete mixing of the oxygen precursor and catalyst. The first part of the composition contains a carrier and manganese dioxide (MnO2) nanoparticles. The second part of the composition comprises the oxygen precursor; hydrogen peroxide. When the two parts, one with manganese dioxide nanoparticles and exhibiting a characteristic color, (e.g. yellow brown) and the second part with hydrogen peroxide are mixed together, the color imparted by the manganese dioxide nanoparticles essentially disappears and the final composition (enriched with oxygen) either appears colorless or takes on the original color of the catalyst. Thus, the manganese dioxide catalyst nanoparticles themselves serve as the colorimetric indicator of peroxide decomposition to oxygen, precluding the need for an external colorant. Manganese dioxide particles that are not nanoparticles fail to exhibit this color changing phenomenon.

    摘要翻译: 提供了按需氧气产生的局部组合物,其具有专门用于指示氧气前体和催化剂完全混合后的颜色变化的内置指示剂。 组合物的第一部分含有载体和二氧化锰(MnO 2)纳米颗粒。 组合物的第二部分包含氧前体; 过氧化氢。 当这两个部分,一个二氧化锰纳米粒子和具有特征颜色(例如黄棕色)和第二部分与过氧化氢混合在一起时,由二氧化锰纳米颗粒基本上消失的颜色和最终组成(富含氧气 )呈现无色或呈现催化剂的原色。 因此,二氧化锰催化剂纳米颗粒本身用作过氧化物分解成氧的比色指示剂,排除了外部着色剂的需要。 不是纳米颗粒的二氧化锰颗粒不能显示出这种变色现象。