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1 June 2011 Red-luminescent europium (III) doped silica nanoshells: synthesis, characterization, and their interaction with HeLa cells
Jian Yang, Sharraya Aschemeyer, Andrew C. Kummel, William C. Trogler, Sergio Sandoval, Alex Liberman, Jesus Alfaro, David T. Martin, Milan T. Makale
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Journal of Biomedical Optics, Vol. 16, Issue 6, 066012 (June 2011). https://doi.org/10.1117/1.3593003
Abstract
A simple method to fabricate Eu3+ doped silica nanoshells particles with 100 and 200 nm diameters is reported. Amino polystyrene beads were used as templates, and an 8 to 10 nm thick silica gel coating was formed by the sol-gel reaction. After removing the template by calcination, porous dehydrated silica gel nanoshells of uniform size were obtained. The Eu3+ doped silica nanoshells exhibited a red emission at 615 nm on UV excitation. The porous structure of the silica shell wall was characterized by transmission electron microscopy measurements, while particle size and zeta potentials of the particles suspended in aqueous solution were characterized by dynamic light scattering. Two-photon microscopy was used to image the nanoshells after assimilation by HeLa cancer cells.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
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Jian Yang, Sharraya Aschemeyer, Andrew C. Kummel, William C. Trogler, Sergio Sandoval, Alex Liberman, Jesus Alfaro, David T. Martin, and Milan T. Makale "Red-luminescent europium (III) doped silica nanoshells: synthesis, characterization, and their interaction with HeLa cells," Journal of Biomedical Optics 16(6), 066012 (1 June 2011). https://doi.org/10.1117/1.3593003
Published: 1 June 2011
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KEYWORDS
Silica
Europium
Luminescence
Particles
Nanoparticles
Optical spheres
Control systems
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