nanoemulsion vaccine adjuvant http://nano.med.umich.edu/platforms/Nanoemulsions.html SGS Nanoemulsion vaccine adjuvant is an emulsion vaccine adjuvant and is made from non-toxic lipid droplets a few hundred nanometers in diameter and made from surfactants approved for human consumption and common food substances that are 'Generally Recognized as Safe' (GRAS) by the FDA. emulsion vaccine adjuvant