Title :
The Influence of Silica Nanoparticles On The Preparation and Stability of O/W Emulsions
Author :
Eskandar, Nasrin Ghouchi ; Simovic, Spomenka ; Saupe, Anne ; Rades, Thomas ; Prestidge, Clive A.
Author_Institution :
ARC Special Res. Centre for Particle & Material Interfaces, South Australia Univ., Mawson Lakes, SA
Abstract :
The effect of silica nanoparticle addition on the stability of O/W emulsions initially stabilized by lecithin or oleylamine has been investigated. The synergy between silica nanoparticles and the emulsifiers at stabilizing the oil-water interface has been established. The influence of variation in the number of homogenization cycles, the ratio of emulsifier to silica, oil load and the initial location of nanoparticles on the size distribution of emulsion droplets have been studied. freeze-fracture scanning electron microscopy was used to study the interfacial structure of the emulsion droplets. The results confirm improvement in the long term physical stability of emulsions in the presence of silica nanoparticles
Keywords :
emulsions; nanoparticles; scanning electron microscopy; stability; emulsifier; emulsion preparation; emulsion stability; freeze-fracture scanning electron microscopy; lecithin; oil-water interface; oleylamine; physical stability; silica nanoparticles; synergy; Australia; Biological materials; Biomedical materials; Lakes; Nanoparticles; Petroleum; Scanning electron microscopy; Silicon compounds; Stability; Telephony;
Conference_Titel :
Nanoscience and Nanotechnology, 2006. ICONN '06. International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-4244-0453-3
Electronic_ISBN :
1-4244-0453-3
DOI :
10.1109/ICONN.2006.340571
