Methoxy-modified kaolinite as a novel carrier for high-capacity loading and controlled-release of the herbicide amitrole.
Methoxy-modified kaolinite as a novel carrier for high-capacity loading and controlled-release of the herbicide amitrole.
复制标题
甲氧基改性高岭石作为除草剂胺硝高容量负载和控释的新型载体
DOI：
10.1038/srep08870
复制
发表时间：
2015-03-09
影响因子：
4.6
通讯作者：
He H
中科院分区：
文献类型：
--
作者：
Tan D;Yuan P;Annabi-Bergaya F;Liu D;He H
以甲氧基改性高岭石为新型载体，装载和释放除草剂3-氨基-1,2,4-三唑（amitrole，简称AMT）。甲氧基改性使高岭石的层间空间为AMT嵌入提供了空间。甲氧基改性高岭石的AMT负载量达到20.8质量%，是未改性高岭石的2倍。其中约48%位于层间空间。AMT的释放曲线符合修改后的Korsmeyer-Peppas模型。由于嵌层AMT受高岭石层状结构的限制以及嵌层AMT与高岭石之间的强静电吸引作用，使得AMT从甲氧基改性高岭石中缓慢释放。这些结果表明，甲氧基修饰是一种简便的方法，使高岭石的层间空间可以容纳其他客体分子。甲氧基修饰的高岭石在药物、农用化学品和生物化学品等分子的高容量负载和控释方面具有广阔的应用前景。
Methoxy-modified kaolinite was used as a novel carrier for loading and release of the herbicide 3-amino-1,2,4-triazole, known as amitrole (abbreviated here as AMT). The methoxy modification made the interlayer space of the kaolinite available for AMT intercalation. The AMT loading content in methoxy-modified kaolinite reached up to 20.8 mass% (twice the loading content by unmodified kaolinite). About 48% of this amount is located in the interlayer space. The release profiles of the AMT fit with the modified Korsmeyer-Peppas model. Due to the diffusional restriction of the intercalated AMT by the lamellar structure of the kaolinite and the strong electrostatic attraction between the intercalated AMT and the kaolinite, a slow release of AMT from the methoxy-modified kaolinite was achieved. These results show that the methoxy-modification is a facile method to make the interlayer space of kaolinite available for hosting other guest molecules. The methoxy-modified kaolinite is a promising candidate for high-capacity loading and controlled-release of other molecules such as drugs, agrochemicals and biochemicals.
登录
查看更多内容
影响因子：
10.4
作者：
Rothlein J;Rohlman D;Lasarev M;Phillips J;Muniz J;McCauley L
通讯作者：
McCauley L
DOI：
10.1139/v56-231
发表时间：
1956-01-01
期刊：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
影响因子：
--
作者：
HEACOCK, RA;MARION, L
通讯作者：
MARION, L
影响因子：
3.9
作者：
Komori, Y;Enoto, H;Kuroda, K
通讯作者：
Kuroda, K
影响因子：
5.6
作者：
Bonina, F. P.;Giannossi, M. L.;Tateo, F.
通讯作者：
Tateo, F.
影响因子：
2.2
作者：
He, HP;Ding, Z;Frost, RL
通讯作者：
Frost, RL