VAPOR PHASE COATINGS FOR PHARMACEUTICAL SOLUBILITY CONTROL

    公开(公告)号:US20220296530A1

    公开(公告)日:2022-09-22

    申请号:US17636293

    申请日:2020-08-27

    Inventor: Colin C. Neikirk

    Abstract: A method of preparing a pharmaceutical composition having a drug-containing core enclosed by one or more metal oxide materials is provided. The method includes the sequential steps of (a) loading the particles comprising the drug into a reactor, (b) applying a vaporous or gaseous metal precursor to the particles in the reactor, (c) performing one or more pump-purge cycles of the reactor using inert gas, (d) applying a vaporous or gaseous oxidant to the particles in the reactor, and (e) performing one or more pump-purge cycles of the reactor using inert gas. The temperature of the particles does not exceed 35° C. This produces a pharmaceutical composition comprising a drug containing core enclosed by one or more metal oxide materials.

    Particle coating methods and apparatus

    公开(公告)号:US11242599B2

    公开(公告)日:2022-02-08

    申请号:US16515875

    申请日:2019-07-18

    Abstract: A reactor for coating particles includes a vacuum chamber configured to hold particles to be coated, a vacuum port to exhaust gas from the vacuum chamber via the outlet of the vacuum chamber, a chemical delivery system configured to flow a process gas into the particles via a gas inlet on the vacuum chamber, one or more vibrational actuators located on a first mounting surface of the vacuum chamber, and a controller configured to cause the one or more vibrational actuators to generate a vibrational motion in the vacuum chamber sufficient to induce a vibrational motion in the particles held within the vacuum chamber.

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