title: Positron lifetimes in phospholipid dispersions.
abstract: Positron lifetimes have been determined in phospholipid dispersions. In fluid phosphatidylcholines, a lifetime of 3.3 ns is found, and a lifetime of 2.8 ns is found for frozen phosphatidylcholines. In dispersions where fluid and frozen phases coexist due to lateral phase separation, an intermediate lifetime is found.
mesh_terms: D008563:Membrane Lipids; D008956:Models, Chemical; D010713:Phosphatidylcholines; D010743:Phospholipids; D013995:Time
chemical_list: D008563:Membrane Lipids; D010713:Phosphatidylcholines; D010743:Phospholipids