Facilitated Diffusion of Proline across Membranes of Liposomes and Living Cells by a Calix[4]pyrrole Cavitand

Martinez-Crespo, Luis; Liang Sun-Wang, Jia; Felipe Sierra, Andres; Aragay, Gemma; Errasti-Murugarren, Ekaitz; Bartoccioni, Paola; Palacin, Manuel; Ballester, P