Conjugated Polymers As Molecular Gates for Light-Controlled Release of Gold Nanoparticles
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- 作者：Maria Sanrom谩n-Iglesias ; Kai A. I. Zhang ; Andrey Chuvilin ; Charles H. Lawrie ; Marek Grzelczak ; Luis M. Liz-Marz谩n
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2015
- 出版时间：July 29, 2015
- 年：2015
- 卷：7
- 期：29
- 页码：15692-15695
- 全文大小：303K
- ISSN：1944-8252
文摘
The remote release of nano-objects from a container is a promising approach to transduce chemical events into an optical signal. The major challenge in the development of such a system involves the use of a suitable molecular gate that retains aggregated particles and releases them upon applying an external stimulus. We show proof-of-concept experiments for the release of gold nanoparticles into an aqueous solution upon photodegradation of conjugated polymer thin films. Gold nanoparticles thus transduce light-induced chemical events into an amplified optical signal with a release rate of 2.5 nM per hour, which can be readily detected by the naked eye.