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In article number 2000733 by Juergen Brugger and co‐workers, a novel composite membrane of silk fibroin, microgels and magnetic nanoparticles whose permeability can be adjusted by temperature for controlled drug release is studied. The temperature induced shrinking/swelling of microgels is stimulated by a magnetic field, and a highly‐precise, tuneable release rate of Rhodamine B model drug is demonstrated.