期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 32, 页码 11344-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja9042752
关键词
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资金
- U.S. Department of Defense [HDTRA1-08-1-0041]
- National Science Foundation [CHE 0809384, EEC 0647560]
Dual-controlled nanoparticles (DCNPs) are synthesized by attaching two different types of molecular machines, light-responsive nanoimpellers and pH-responsive nanovalves, to different regions of mesoporous silica nanoparticles. Nanoimpellers are based on azobenzene derivatives that are tethered to the nanopore interiors, while nanovalves are based on [2]pseudorotaxanes that are tethered to the nanoparticle surfaces. The different molecular machines operate through separate mechanisms to control the release of guest molecules that are loaded into the nanopores. When used in conjunction with one another, a sophisticated controllable release system behaving as an AND logic gate is obtained.
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