Bio-inspired controlled release through compression–relaxation cycles of microcapsules

A novel release mechanism of microcapsules is demonstrated, where the rate of core release can be solely controlled by magnetic field-induced deformation of microcapsules. Composite microcapsules are prepared with magnetic particles embedded in the polymer wall. It shows that the release rate is highly dependent on the strengths of the magnetic field and deformation frequency of the microcapsules.

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