title: Synthesising gold nanoparticles within bola fatty acid nanosomes.
abstract: We report on the synthesis of gold nanoparticles (Au-NP) stabilized by a layer of mercapto and/or hydroxyl bola palmitic acid-tetrabutyl ammonium salts (TBAOH) which form nanosomes in water. Mixing both bola fatty acids in water in various proportions allowed to tune the nanoparticle diameter from 1 to 10 nm using NaBH(4) as a reductor. Those nanoparticles could be phase transferred to dichloromethane by adding a more hydrophobic counter-ion than TBAOH, its derivative with octyl chains (TOAOH). Finally, we used those Au-NP to formulate emulsions, the stability of which was followed as a function of particle size and time. The emulsions were stable but creamed after several hours. We conclude that bola fatty acid nanosomes are then good candidates to synthesize gold nanoparticles dispersed either in water, organic solvents and emulsions.
authors: UR 1268 Biopolymères Interactions Assemblages INRA, rue de la Géraudière, 44316 Nantes, France. jean-paul.douliez@nantes.inra.fr
authors: Jean-Paul
authors: JP
authors: Douliez
authors: Bruno
authors: B
authors: Novales
authors: Cédric
authors: C
authors: Gaillard
mesh_terms: D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles; D046529:Microscopy, Electron, Transmission; D019308:Palmitic Acid / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D019308:Palmitic Acid; D006046:Gold