Liposomes are composed of a lipid bilayer separating an aqueous internal compartment from the bulk aqueous phase.
Micelles are closed lipid monolayers with a fatty acid core and polar surface, or polar core with fatty acids on the surface (inverted micelle).
Micelles should perhaps be considered as enhancing a nutrient's solubility as they release the nutrients when in contact with bodily fluid.
Liposomes are nutrient carriers and can be considered to be superior for delivery as they directly target bodily cells.
Additionally, liposomes are capable of carrying much higher doses of the intended nutrients than a micelle due to their composition.
So, whilst micelles will enhance the uptake of the nutrient, they do not have the same targeted power of a liposome.