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Strain-Controlled Release of Molecules from Arrayed Microcapsules Supported on an Elastomer Substrate


  • This work was supported in part by the DAPA&ADD and by a National Research Foundation (NRF) grant funded by the Korean Government (MEST) through the Active Polymer Center Pattern Integration (No. R11-2007-050-01004-0) and by the World Class University Program (R32-20031).


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Performing under strain: Microcapsules arrayed on an elastomer substrate pumped out preloaded molecules upon mechanical stretching of the substrate as a result of a decrease in microcapsule volume. This technology could be applied to drug release, for example, from a flexible patch containing the drug through mechanical stimulation by opening and closing of the hand (see picture).