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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
25-07-2023 дата публикации

Preparation method of tumor microenvironment responsive degradation FMMSNs, prepared FMMSNs and application of FMMSNs

Номер: CN116473944A
Автор: XU JIATING, XU XIUPING, WANG JUN, YE JIN, LIU SHUANG, LIU MENGTING, CUI YUJIE, LI YUNLONG, ZHANG ZHIYONG, NIU NA, CHEN LIGANG, FU YUJIE
Принадлежит:

The invention provides a preparation method of tumor microenvironment responsive degradation FMMSNs, the prepared FMMSNs and application of the FMMSNs, tetraethyl orthosilicate is used as a silicon source, and in the participation of hexadecyl trimethyl ammonium p-toluenesulfonate, triethanolamine and 1-butyl-3-methyl-imidazole trifluoromethanesulfonate, the FMMSNs are synthesized into the FMMSNs with the tumor microenvironment responsive degradation function. The silicon dioxide nanoparticles with uniform dispersity and smaller particle size are prepared; preparing ferro-manganese silicate at a high temperature through a hydrothermal method; degraded metal ions can be complexed with plant polyphenol GA in situ, generated Fe-GA nanoparticles can catalyze to generate reactive oxygen species, and cancer cells can be killed; and moreover, the iron manganese silicate obtained after hydrothermal treatment has a hollow structure and can load drugs, so that the iron manganese silicate becomes ...

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Номер записи: 1
08-09-2017 дата публикации

Core-shell structure of Gd - Si - Ce6 multifunctional mesoporous preparation method of composite material

Номер: CN0105271266B
Автор: 杨飘萍, 杨丹, 盖世丽, 杨桂欣, 毕惠婷, 徐加廷, 冯莉莉
Принадлежит:

... 本发明提供的是种核壳结构的Gd‑Si‑Ce6多功能介孔纳米复合材料的制备方法。采用几种经典的反应制备粒径均匀、分散性良好的空心有序介孔纳米材料；采用CTAB作为表面活性剂能够形成有序的介孔二氧化硅层，不仅为引入大量的功能分子团提供了较大的表面积，还为吸收和封装生物分子提供了较大的孔径；采用两种硅烷做前驱体合成了空心有序介孔结构纳米复合材料。所得复合材料内部具有环形空腔结构，可用于存储大量药物分子；表面具有层介孔二氧化硅层，可实现内外物质交换；在660nm激发光下可产生高效的单线态氧，可用于癌症的光动力治疗；制备过程绿色环保、原材料廉价、过程简单易行。 ...

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Номер записи: 2
22-08-2023 дата публикации

Hollow mesoporous diatomic nano-enzyme as well as preparation method and application thereof

Номер: CN116618061A
Автор: XU JIATING, WANG JUN, YE JIN, LIU SHUANG, XU XIUPING, WANG JIKUN, QU JIAWEI, ZHANG ZHIYONG, NIU NA, CHEN LIGANG, LIU ZHIGUO, FU YUJIE
Принадлежит:

The invention provides a hollow mesoporous diatomic nano-enzyme as well as a preparation method and application thereof. A natural product dopamine is used for providing a carbon source and a nitrogen source, anhydrous manganese chloride is used as a manganese source, anhydrous copper chloride is used as a copper source, silicon dioxide is used as a hard template, calcination is performed at 800 DEG C for 3 h, and a copper-manganese diatomic phase and a hollow structure are designed to endow the diatomic nano-enzyme with 100% atom utilization rate and high triple enzyme catalytic activity. Compared with the prior art, the prepared nano-material has the advantages of large specific surface area and ultrahigh near-infrared two-region photo-thermal conversion efficiency, so that the nano-material can be used as an excellent biocatalyst and a nano-drug carrier, and in addition, due to the extremely ideal near-infrared two-region photo-thermal conversion efficiency, the nano-material can also ...

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Номер записи: 3