Microwave-Fluidic Continuous Manufacturing of Ultrasmall Silver Nanoparticles in a Polycaprolactone Matrix as Antibacterial Coatings.

In addition, it is worth noting that all studied experimental conditions yielded AgNPs with hydrodynamic sizes smaller than 3 nm at flow rates higher than 0.5:0.5 mL/min. Such an observed trend in particle size and its distribution can be attributed to the type of microwave source, in which a single-mode microwave 29 , 33 − 36 was used to prepare the NCs in the current study compared to a multimode domestic microwave (800 W) used in the former study. 53 Overall, UV–vis spectroscopy and DLS results of NC7–11 showed that the optimum flow rate was 1.25:1.25 mL/min to prepare ultrasmall (2.43 ± 0.62) and almost monodisperse (PDI ∼ 0.1) AgNPs in the MWFS system.

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