Pulmonary delivery of cationic gold nanoparticles boost antigen-specific CD4+ T Cell Proliferation. - Seydoux E; Rodriguez-Lorenzo L; Blom RA; Stumbles PA; Petri-Fink A; Rothen-Rutishauser BM; Blank F; von Garnier C (Nanomedicine : nanotechnology, biology, and medicine, 2016)