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Physical and chemical characterisation of curcumin-loaded nanoemulsions after long term storage for 6 months at 25 °C compared to 1-day. No significant difference (p > 0.05) in zeta potential (ZP, mV), drug content (%w/w) droplet size (nm), pH, was observed after storage compared to 1-day preparation, with exception of formulation N10 showed higher polydispersity index (PDI), indicating aggregation.
