Volume 48, Issue 52 pp. 9867-9870
Communication

Externally Triggered Glass Transition Switch for Localized On-Demand Drug Delivery

Jos T. F. Keurentjes Prof. Dr. Ir.

Jos T. F. Keurentjes Prof. Dr. Ir.

Process Development Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)

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Maartje F. Kemmere Dr. Ir.

Maartje F. Kemmere Dr. Ir.

Process Development Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)

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Henny Bruinewoud Dr. Ir.

Henny Bruinewoud Dr. Ir.

Process Development Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)

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Micky A. M. E. Vertommen Ir.

Micky A. M. E. Vertommen Ir.

Process Development Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)

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Stefan A. Rovers Ir.

Stefan A. Rovers Ir.

Process Development Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)

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Richard Hoogenboom Dr.

Richard Hoogenboom Dr.

Dolphys Medical B.V. Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)

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Léon F. S. Stemkens Ing.

Léon F. S. Stemkens Ing.

Dolphys Medical B.V. Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)

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Fabiènne L. A. M. A. Péters Ing.

Fabiènne L. A. M. A. Péters Ing.

Dolphys Medical B.V. Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)

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Naomi J. C. Tielen Dr.

Naomi J. C. Tielen Dr.

Dolphys Medical B.V. Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)

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Dirk T. A. van Asseldonk Dr. Ir.

Dirk T. A. van Asseldonk Dr. Ir.

Dolphys Medical B.V. Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)

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Anne F. Gabriel

Anne F. Gabriel

Pain Management and Research Center, Department of Anaesthesiology, Academic Hospital Maastricht, P.O. Box 5800, 6202 AZ Maastricht (The Netherlands)

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Elbert A. Joosten Dr.

Elbert A. Joosten Dr.

Pain Management and Research Center, Department of Anaesthesiology, Academic Hospital Maastricht, P.O. Box 5800, 6202 AZ Maastricht (The Netherlands)

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Marco A. E. Marcus Prof. Dr.

Marco A. E. Marcus Prof. Dr.

Pain Management and Research Center, Department of Anaesthesiology, Academic Hospital Maastricht, P.O. Box 5800, 6202 AZ Maastricht (The Netherlands)

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First published: 15 December 2009
Citations: 40

This work was financially supported by SenterNovem.

Graphical Abstract

I want a new drug dose: External on-demand laser triggering is used in a drug-delivery concept, with on/off ratios in excess of 1000/1. The switching mechanism involves the glass transition of hydrophobic polymers with a large change in diffusivity. Formation of a glassy surface layer of the implant in the off state plays a key role, resulting in negligible off-release. (Picture: data points indicate ibuprofen concentration).

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