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Axel Schlossbauer, Simon Warncke, Philipp M. E. Gramlich, Johann Kecht, Antonio Manetto, Thomas Carell and Thomas Bein A Programmable DNA-Based Molecular Valve for Colloidal Mesoporous Silica Angewandte Chemie International Edition 49

Version of Record online: 10 JUN 2010 | DOI: 10.1002/anie.201000827

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Letting off steam: A temperature-controlled valve system permits the targeted release of guest fluorescein molecules from the pores of colloidal mesoporous silica particles. The pore-opening temperature is dependent on the length of double-stranded DNA linkers. Avidin proteins that are joined to the DNA by a biotin modification act as the molecular valve at the exits to the pores.

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