Figure 2.

Reversible formation of reactive nano‐compartments upon application of a magnetic field. A: inactive magnetic particles with immobilized enzyme (green) and substrate (red circles) on separate particles; B: clustering of particles and formation of reactive nano‐compartments. Due to their close proximity, the enzyme is now able to convert the substrate (red circles) on the other particle into a product (orange squares). The light grey area represents the exclusion volume without application of a magnetic field.