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Characterization of the physicochemical attributes of NPs. (A) SEM of capsaicin NPs. (B) SEM of blank NPs. Scale bar is 500 nm. (C) Intensity-based particle size distribution as measured by dynamic light scattering. (D) Cumulative in vitro release of capsaicin from NPs over time under agitation. (E) Measurements of size, capsaicin loading, encapsulation efficiency and pH (in Vanicream) for capsaicin-loaded and blank NPs. Mean ± SEM.
