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Preparation of dye-loaded SiO2 nanoparticles |
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| Authors: | Qiang Wang Qing Dai |
| Institution: | a Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, United States b Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, United States c Department of Chemical and Biomolecular Engineering & Center for Molecularly Engineered Materials, University of Notre Dame, Notre Dame, IN 46566, United States d School of Chemistry, Faculty of Science, Monash University, Victoria 3800, Australia |
| Abstract: | A room temperature method for the encapsulation of pyrene in SiO2 nanoparticles is described. The relation between alkoxysilane surfactant chain length, reactant molar ratios and the uptake of dye, sample morphology, photophysical properties, and the ability of the silicate matrix to protect the encapsulated dye was examined. The synthesis can easily be adapted for the encapsulation of other hydrophobic and thermolabile substances, and used in the development of nanostructured optically active coatings, films and monoliths. |
| Keywords: | Colloids Nanocomposites Luminescence Time resolved measurements Silicates Organic-inorganic hybrids Viscosity |
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