Microscopy, ConfocalMicroscopy, FluorescenceFluorescenceSpectrometry, FluorescenceFluorescent DyesMicroscopy, Fluorescence, MultiphotonMesoporphyrinsSpectroscopy, Near-InfraredDiagnostic ImagingIndocyanine GreenFluorescence Resonance Energy TransferMolecular ImagingFluorescein-5-isothiocyanatePhotochemotherapyMicroscopyWhole Body ImagingMicroscopy, ElectronGreen Fluorescent ProteinsNanoparticlesMicroscopy, Electron, ScanningMice, NudeFluorescence PolarizationIn Situ Hybridization, FluorescenceCell Line, TumorMicroscopy, Electron, TransmissionMicroscopy, Atomic ForceMicroscopy, Immunoelectron