Sorry for being so slow to get back to this thread.
It seems that some people have a few doubts about this type of technology and that's very understandable, I did too when I first heard about nano-tech for human ingestion.
Chances are many of us have been eating or are eating products using this type of tech as part of our normal diets, it's being used in a wide array of nutritionally "fortified" foods for the lack of a better word. There is a vast array of foods using this tech and most people have no idea.
White bread that is marketed as high in omega 3 is one example that almost always uses a nanotech encapsulation delivery system for the Omega 3 fatty acids.
If you want to find out more about which companies and foods are using nanotech then there is a good resource in the link below.
Nanotech in foodsI'm not trying to argue that the technology is safe or unsafe, people can decide that for themselves.
There were a few questions about how the liposomal drugs work in relation to where absorbtion takes place. It's my understanding that liposomal encapsulated substances can pass through the digestive tract and make it into the bloodstream in tact, then the liposomal coating is broken down by the liver and many drugs are metabolised directly in the liver.
I must admit that my knowledge on the mechanisms involved where substances cross the BBB is still in it's infancy, so I can't really elucidate on that matter in-case I give false information and lead people astray -sorry.
After a bit of research it seems like the addition of ethyl alcohol to the mixture at the rate of 12% final weight when manufacturing the liposomes produces a better quality end product and the alcohol acts as a preservative so the product will keep longer.
Some other formulations use sodium benzoate as a preservative, but I have read that sodium benzoate can be converted to benzene if it comes into contact with ascorbic acid under some circumstances. One of the chemists here would know more about that than myself.
I do have some concerns about pathogens contaminating home made liposomal drugs or vitamins, but if a few basic steps are taken to sterilise equipment and the water used for aqueous solutions those risks should be minimised. The addition of alcohol to the mixture at the time of manufacture should also help to minimise any risks.
The best resource I've found outside of restricted academic publications can be found on the link below. It provides full instructions on how to make liposomal vitamin c at home. It's much more comprehensive than most of the youtube vids, I've seen.
Quality Liposomal Vitamin C