Doped with organic dyes

Beltran-Perez, G. Lopez-Huerta, F. Munoz-Aguirre, S. CastiUo-Mixcoatl, J. Palomino-Merino, R. Lozada-Morales, R. Portillo-Moreno, O. Fabrication and characterization of an optical fiber pH sensor using sol-gel deposited Ti02 film doped with organic dyes. Sens. Actuators, B 2006, B120, 74—78. 

Materials. Beside inorganic materials (eg, barium chloride/fluoride crystals, doped with 0.05% samarium), transparent thermoplasts are preferred for the PHB technique, eg, poly (methyl methacrylate) (PMAIA), polycarbonate, and polybutyral doped with small amounts of suitable organic dyes, organic pigments like phthalocyanines, 9-arninoacridine, 1,4-dihydroxyanthraquinone [81-64-1] (quinizarin) (1), and 2,3-dihydroporphyrin (chlorin) (2). 

Silica particles have been exploited in virtually every assay or detection strategy that polymer particles have been used in for bioapplication purposes. Recently, fluorescent dye-doped silica nanoparticles have been developed by a number of groups that have similar fluorescence characteristics to quantum dot nanocrystals (Chapter 9, Section 10). Fluorescent silica nanoparticles can be synthesized less expensively than quantum dots due to the fact that the silica particles incorporate standard organic dyes (Ow et al., 2005 Wang et al., 2006) and are not dependent on making reproducible populations of semiconductor particles with precise diameters to tune emission wavelengths. 

T. Mori, H. Kim, T. Mizutani, and D. Lee, Electroluminescent properties in organic light-emitting diode doped with two guest dyes, Jpn. J. Appl. Phys., 40 5346-5349 (2001). 

J Kido, K Hongawa, K Okuyama, and K Nagai, White light-emitting organic electroluminescent devices using the poly(A-vinylcarbazole) emitter layer doped with three fluorescent dyes, Appl. Phys. Lett., 64 815-817, 1994. 

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