TY - JOUR
T1 - Synthesis and characterization of biocompatible and size-tunable multifunctional porous silica nanoparticles
AU - Lin, Yu Shen
AU - Haynes, Christy L.
PY - 2009/9/8
Y1 - 2009/9/8
N2 - In this work, size-controlled multifunctional mesoporous silica nanoparticles having large surface areas, embedded luminescence, high magnetization, and excellent aqueous dispersity have been successfully prepared by using a simple one-pot synthesis. The size and pore ordering of these particles can be easily controlled based on the number density of Fe 3O 4 nanoparticle nucleation sites introduced during the silica condensation reaction. Dissolution of the embedded Fe 3O 4 nanoparticles yields hollow mesoporous silica nanoparticles as well. These multifunctional porous nanoparticles were characterized by transmission electron microscopy, X-ray diffraction, nitrogen adsorption-desorption behavior, dynamic light scattering, zeta potential, magnetic susceptibility, and photoluminescence. Furthermore, in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) and hemolysis assays were performed to evaluate any unintended cytotoxicity. The biocompatibility of the multifunctional nanoparticles, even at very high doses, ensures their potential in biomedical applications.
AB - In this work, size-controlled multifunctional mesoporous silica nanoparticles having large surface areas, embedded luminescence, high magnetization, and excellent aqueous dispersity have been successfully prepared by using a simple one-pot synthesis. The size and pore ordering of these particles can be easily controlled based on the number density of Fe 3O 4 nanoparticle nucleation sites introduced during the silica condensation reaction. Dissolution of the embedded Fe 3O 4 nanoparticles yields hollow mesoporous silica nanoparticles as well. These multifunctional porous nanoparticles were characterized by transmission electron microscopy, X-ray diffraction, nitrogen adsorption-desorption behavior, dynamic light scattering, zeta potential, magnetic susceptibility, and photoluminescence. Furthermore, in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) and hemolysis assays were performed to evaluate any unintended cytotoxicity. The biocompatibility of the multifunctional nanoparticles, even at very high doses, ensures their potential in biomedical applications.
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U2 - 10.1021/cm901259n
DO - 10.1021/cm901259n
M3 - Article
AN - SCOPUS:69849110521
SN - 0897-4756
VL - 21
SP - 3979
EP - 3986
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 17
ER -