(a,b) CFD simulations of the SMR predicting the mixing efficiency (a) of virtual
nanoparticles within the swirling microvortex flow and (b) at cross-sections
along the height of the SMR with varied diameters (1mm, 2mm, and 4mm). (c)
Schematic showing the synthesis of lipid-polymer nanoparticles (LPNPs) through
swirling microvortex flow of PLGA and Lipid/Lipid-PEG aqueous solutions; Photo
of a SMR with two precursor inlets. Scalebar is 5mm. (d) TEM image of
synthesized LPNPs. Scalebar is 100nm. (e–g) Size distributions of
synthesized LPNPs show the effects of (e) the reactor diameter, (f) PLGA-lipid
weight ratio (precursor composition), and (g) Reynolds number (Re) on the
average size and uniformity of the NPs.