PEG causes fusion of protoplast (in general lipid-bilayers). It is mainly involved in yeast transformation. It is a common solution for protein and DNA isolation. The synonyms include PEG-LiOAc solution and PEG-lithium acetate solution.
B. Sandner.; J. Tübke.; S. Wartewig.; S. Shashkov. Ionic association in oligo(ethylene glycol)-lithium triflat solutions as studied by FT Raman spectroscopy.Solid State Ionics. 1996, 83 (1-2), 87-97.