Size and stability of liposomes: A possible role of hydration and osmotic forces J. Sabın, G. Prieto, J. M. Ruso, R. Hidalgo-Álvarez and F. Sarmiento Eur. Phys. J. E, 20 4 (2006) 401-408 Published online: 07 September 2006 DOI: 10.1140/epje/i2006-10029-9