Halloysite clay nanotubes for controlled release of protective agents

被引：796

作者：

Lvov, Yuri M. ^{[1
]}

Shchukin, Dmitry G. ^{[2
]}

Mohwald, Helmuth ^{[2
]}

Price, Ronald R. ^{[3
]}

机构：

[1] Louisiana Tech Univ, Inst Micromfg, Ruston, LA 71270 USA

[2] Max Planck Inst Colloids & Interfaces, Golm, Germany

[3] Glen Muir Technol Inc, Stevensville, MD USA

来源：

ACS NANO | 2008年 / 2卷 / 05期

关键词：

D O I：

10.1021/nn800259q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Halloysite aluminosilicate nanotubes with a 15 nm lumen, 50 nm external diameter, and length of 800 +/- 300 nm have been developed as an entrapment system for loading, storage, and controlled release of anticorrosion agents and biocides. Fundamental research to enable the control of release rates from hours to months is being undertaken. By variation of internal fluidic properties, the formation of nanoshells over the nanotubes and by creation of smart caps at the tube ends it is possible to develop further means of controlling the rate of release. Anticorrosive halloysite coatings are in development and a self-healing approach has been developed for repair mechanisms through response activation to external impacts. In this Perspective, applications of halloysite as nanometer-scale containers are discussed, including the use of halloysite tubes as drug releasing agents, as biomimetic reaction vessels, and as additives in biocide and protective coatings. Halloysite nanotubes are available in thousands of tons, and remain sophisticated and novel natural nanomaterials which can be used for the loading of agents for metal and plastic anticorrosion and biocide protection.

引用

页码：814 / 820

页数：7

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