We report modulating physiochemical and optical properties of nanoemulsions through varying surfactants, cosurfactants, and oil phases. Nanoemulsions (NE) are kinetically stable droplets formed between two immiscible phases exhibiting sizes below 100 nm. Oil-in-Water (O/W) NEs were synthesized with diameters as low as 20 nm, which were confirmed by Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS). By varying reagent parameters such as the oil phase and surfactant, a negative correlation was established with the concentration of cosurfactant Brij 30 and emulsion particle size. Additionally, we observe a critical point of 20 nm in diameter where adding more cosurfactant ceases to reduce the size of the particles and destabilizes the nanoemulsion. Understanding underlying chemical mechanisms that correlate to organogel thermodynamic properties and NE particle size will prove influential in engineering better soft-matter technology for the future.<br/>

Investigating physiochemical properties of nanoemulsions and effects on particle size

2019 Spring National Meeting

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