Phospholipid free thin liquid films with grafted poly(ethylene glycol)-2000: Formation, interaction forces and phase states Nikolova, A.N.; Jones, M.N. Biochimica et Biophysica Acta 1372(2): 237-243 1998 0006-3002 10.1016/s0005-2736(98)00061-3 https://eurekamag.com/research/009/188/009188011.php