Structure |
The phytochemicals are conjugated to the hydrophilic choline head and it becomes a part of the phospholipid. |
The active compounds are dissolved in intermate aqueous core or bilayer lipid membrane. |
[2,9] |
Nature of bond |
Chemical bond (Hydrogen bonding) |
No chemical bond |
[2,48] |
Drug: Phospholipid ratio |
1:1 or 2:1 molecular complex |
thousands of phospholipid molecules gathered around the drug |
[2,48] |
Encapsulation |
H-bonds hold the bioactive molecules to the polar tip of the phospholipids. |
The lipid bilayer membrane or the aqueous interior of the vesicles both contain active components. |
[12] |
Route of administation |
Oral and topical |
Topical and parenteral (No evidence exists for oral delivery.) |
[48] |
Bioavailability |
High |
Lower than phytosome |
[48] |
Stability |
High |
Lower than phytosome |
[9,12] |