Remote Activation of Capsules Containing Ag Nanoparticles and IR Dye by Laser Light

Andre G. Skirtach,*†‡ Alexei A. Antipov,†§ Dmitry G. Shchukin,† and Gleb B. Sukhorukov†
Max-Planck Institute of Colloids and Interfaces, Potsdam/Golm, Germany, Photonics TP Inc., Ottawa, Ontario, Canada, and Plasmachem GmbH, Mainz, Germany
Langmuir, 2004, 20 (17), pp 6988–6992
DOI: 10.1021/la048873k
Publication Date (Web): July 21, 2004
Copyright © 2004 American Chemical Society
*

 To whom coreespondence may be addressed at Abt. Grenzflächen, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476 Golm, Germany. Phone (North America):  (613)-262-8633. Phone (Europe):  +49-331-567-9429. Fax:  +49-331-567-9202. E-mail:  ASkirtach@ieee.org.

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†

 Max-Planck Institute of Colloids and Interfaces.

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‡

 Photonics TP Inc.

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§

 Plasmachem GmbH.

Abstract

Abstract Image

We present a novel method for remote release of an encapsulated material from polyelectrolyte capsules based on laser light illumination. Two different components were introduced in the polyelectrolyte shells of PAH/PSS capsuleseither Ag nanoparticles or IR dyeto induce absorption of light. Under laser illumination the capsules containing Ag nanoparticles or IR dye were deformed or cut, thus providing a venue for remote release of encapsulated materials. The experiments were conducted with a low-power near-infrared continuous-wave laser diode.

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History

  • Published In Issue August 17, 2004
  • Received May 6, 2004
    Revised June 28, 2004

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