It was observed that both the de-encapsulation distance, hde [shown again in Figure ] and the volume of the de-encapsulated aggregate (Vagg) increase with increasing drop volumes (Vd) and the NP concentration (cMNP) within the drop [see Figures )]. This implies that the deencapsulation from a larger drop or from a drop with a greater concentration of the MNPs occurs with the drop being at a greater distance from the magnetic stack and the corresponding size of the de-encapsulated aggregate is also larger. A larger sized drop (with a given cMNP) or a drop (of a given size) with larger CMNP has a greater amount of MNPs. Accordingly, the aggregation starts at a greater distance from the magnetic stack. As a consequence, such aggregates become larger in size quickly and can therefore experience a critical magnetic force, large enough to overcome the resisting buoyancy and the drop-PDMS-interface-induced capillary forces, even at a relatively weaker magnetic field strength (i.e., at a greater distance from the magnetic stack). This explains why both hde and Vagg increase with Vd and cMNP. Given that Vagg is larger, the drop-PDMSinterface-induced resisting capillary force is also greater (this force scales linearly with the size of the de-encapsulated aggregate). Accordingly, the critical magnetic force on the aggregates that ensures de-encapsulation must also increase with Vd and cMNP. In Figs. ), we have schematically represented this highly unique interplay between these different factors determining the eventual de-encapsulation of the aggregate.