Dual-doped thermographic phosphor particles as surrogates for green fluorescent protein-labeled cells in tests of cytometric neurocatheters

摘要: We investigated the laser-induced fluorescence of particles a compound thermographic phosphor La2O2S:Eu(1%) and Gd2O2S:Eu(1%) to see if they can serve as surrogate for cells transfected with green fluorescent protein, in tests neurocatheters used intraparenchymal cell delivery. At an excitation wavelength 337 nm concentration ≈2×106 particles ml−1, resulting slurries produced intensities at 625 that were within factor 2 those by similar number densities relevant cells, thus suggesting utility this approach.