Here. we model a negatively charged lipid vesicle. composed of a mixture of bipolar tetraether and diester (or diether) phospholipid molecules. by a spherical shell that has zero ion permeability. https://www.ealisboa.com/top-save-RE-DESIGNED-Strikketoy-oppbevaring-Prosjekt-27-Sort-100-Skinn-great-save/