Another finding is that for interfaces which are "fuzzy" or which have a broad extent away from the solid-liquid boundary, projecting temperature jumps onto an artificial interface using continuity equations can be problematic, as ∆T is often an underestimate of the temperature drop across the boundary layers. For the planar systems, the thermal profiles were well-defined and had little alterations due to solvent layering effects, and a projection approach was suitable. In the nanospheres, however, we determined that our modified continuity equations for calculating G must be used with caution. Alternatively, we have shown that the value of G remains fairly stable with varying lengths of the region used for calculating the Kaptiza resistance from a series of concentric shells.