Hello, so this is the first lesson of the breaking bad tutorial.
#1 lesson:
To build liposomes there are two step, [MUV] create huge liposomes (various methods) -> [SUV] reduce the size of liposome to better penetrate the skin (Liposome extruder)
We need a lipid and a solvent too create MUV, there are essentially two ways:
Hidratation method - the most known and old method in litterature, it's created a thin lipid strate with a rotary evaporator (or DIY alternatives), then hydratize it with the ingredients of the lotion.
Sonication method - it is done with the use of a sonicator, you have to put phospolipide at transition temperature and then start to sonicate in cycles, you could DIY this with a simple jewellery sonic washer.
Second method is way easier but without knowing exact cycles time for the selected sonicator, it's hard to know how good our liposome are, we could just try of course and I'm sure we can get this to work without much hassle, but it's a shot in the dark if you can't test it with a DLS.
So the main ingredient to preparate liposome is a phospolipid chain, which is converted in a sphere with one of the above method.
As written on the patent:
Phosphatidylcholine (
Lipid S75 Humangrade) 1 g
There was an error on the patent, it’s not lipid but it’s Lipoid S75, which is a lipid commercial name.
So let me know if you can find phosphatidylcholine at humangrade quality, if you can't find it there's a DIY solution but is not that good.
It could be much easier if you can find, maybe at your university, a dynamic light scattering(DLS) device, with this tool we can check how good our liposomes are calulating size, Z-potential, dispersion ecc.
Here is the second problem, if you want to stabilize liposomes at room temperature there's not a standard stabilizer and we can't find out what works and what not without a DLS.
So the only solution is to prepare them and store in the fridge in little batch.
Let me know which of the two method you are interested in so I will write extensively about them in the second lesson.
Btw check this, porbably you haven't seen my old post since it has been in moderation for a long time, tell me what you think:
Maybe I missed something, have you noted this on the pdf by beps?
View attachment 85834
There is an hidden fidia logo at the bottom of every single slide.