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Nicole E. Botterhuis, Qianyao Sun, Pieter C. M. M. Magusin, Rutger A. van Santen and Nico A. J. M. Sommerdijk Hollow Silica Spheres with an Ordered Pore Structure and Their Application in Controlled Release Studies Chemistry - A European Journal 12

Version of Record online: 25 NOV 2005 | DOI: 10.1002/chem.200500588

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Hollow silica spheres with a defined porous wall structure are prepared by the mineralization of a trimethylbenzene emulsion stabilized by a b-poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO–PPO–PEO) block copolymer (see picture). These spheres can be used for the encapsulation and controlled release of both hydrophilic and hydrophobic dye molecules.

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