) the aggregated nanoparticles de-encapsulate from the NP-laden drop at a distance hde or (b) the NPladen reaches the bottom without any de-encapsulation. After de-encapsulation, the drop will either (c-ii) move up towards the free surface (this occurs for the case when post de-encapsulation, there is very little amount of MNPs present within the drop) or (c-iii) move down and localize on the bottom substrate at locations where the de-encapsulated magnetic nano-aggregate has deposited (this occurs for the case when even after the de-encapsulation, there is a significant amount of MNPs present within the drop).