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Aspect ratio of the isolated nanoparticles showed a gradual transition from irregular dimension (X-Y axis) to circular shape and irregular aspect at high concentration of capsaicin. The equation of aspect ratio (Ar) is also displayed. Conditions: digital measurement of n = 180 nanoparticle images at 1376 × 1032 pixels and 8 bits of compression; resolution set at 2.1 pixels/nm. Values are the means of three experimental replicates ± standard deviations.
