Berg, K Photochemical internalization: a novel technology for delivery of macromolecules into cytosol. [electronic resource] - Cancer research Mar 1999 - 1180-3 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0008-5472 Subjects--Topical Terms: Cytosol--metabolismDrug Delivery Systems--methodsEndocytosisEndosomes--metabolismHumansLightLysosomes--metabolismMacromolecular SubstancesPhotochemistry--methodsPhotosensitizing Agents--chemistryTumor Cells, Cultured