Nanospheres for therapeutic agent delivery

    公开(公告)号:US09724304B2

    公开(公告)日:2017-08-08

    申请号:US13918019

    申请日:2013-06-14

    CPC classification number: A61K9/16 A61K9/5123 A61K9/5153 A61K31/203 A61K31/405

    Abstract: Provided is a nanosphere for delivery of a therapeutic agent comprising: a polymer matrix; discrete liquid oil droplets dispersed in the polymer matrix; and a therapeutic agent dissolved or dispersed in the oil. In some embodiments, the nanosphere is pegylated. In some embodiments, the nanosphere has a diameter of from about 100 nm to about 300 nm. In further preferred embodiments, the nanosphere has a diameter of from about 150 nm to about 250 nm. In yet further embodiments, the nanosphere has a diameter of from about 180 nm to about 220 nm. In some embodiments, the oil comprises a lipid or a phospholipid. In further embodiments, the lipid or the phospholipid has a melting point below 20° C. In some embodiments, the polymer is a natural, modified or synthetic polymer. In further embodiments, the polymer is biodegradable.

    Method of Regeneration of Beta-Cyclodextrin Based Adsorbent-Coated Silica With Ozone
    159.
    发明申请
    Method of Regeneration of Beta-Cyclodextrin Based Adsorbent-Coated Silica With Ozone 有权
    基于β-环糊精的吸附剂涂覆二氧化硅与臭氧的再生方法

    公开(公告)号:US20160367967A1

    公开(公告)日:2016-12-22

    申请号:US15121593

    申请日:2015-02-27

    Abstract: The present invention relates to systems and methods for regenerating β-cyclodextrin (β-CD) adsorbent after it has been used in a water decontamination process. The regeneration process of the present invention is based on treating β-CD with ozone gas, i.e., ozonation. In one embodiment, the regeneration process of the present invention comprises the steps of providing a β-CD adsorbent that has been used in a water decontamination process and removing at least a portion of the contaminants from the β-CD adsorbent by contacting the contaminants bound to the β-CD adsorbent with a gas comprising ozone.

    Abstract translation: 本发明涉及在β-去环糊精(β-CD)吸附剂用于水净化过程中再生的系统和方法。 本发明的再生方法是用臭氧气体处理β-CD,即臭氧化。 在一个实施方案中,本发明的再生方法包括以下步骤:提供已经用于水去污过程中的β-CD吸附剂,并通过使结合的污染物接触从β-CD吸附剂中除去至少一部分污染物 与包含臭氧的气体接触到β-CD吸附剂。

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