AI Article Synopsis
- The paper discusses the creation of uniformly dye-doped organosilica particles with a controlled size range from nanometers to micrometers while maintaining a consistent size.
- The particles exhibit significant swelling in solvents, swelling up to 2.5 times their original volume, which indicates a gel-like internal structure, important for dye encoding.
- A new coagulation model for particle formation is proposed, which challenges traditional methods like Stöber synthesis.
Article Abstract
This paper reports on the synthesis of uniformly dye-doped organosilica particles with narrow size distribution. The particle size can be controlled from tenths of nanometers up to several micrometers, whilst still maintaining monodispersity. Microparticles were observed to swell in various solvents up to approximately 2.5 times their original volume, suggesting the presence of a gel-like internal structure. As shown by confocal microscopy, this morphological control of particle swelling has important implications for the encoding of the nano/micro particles with organic dyes, such as rhodamine B isothiocyanate. Swelling allows the dye to penetrate the organosilica matrix and produce uniformly dye-doped nano- and microparticles. Finally, we suggest a coagulation model for the particle formation which significantly differs from conventional Stöber synthesis.
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| http://dx.doi.org/10.1016/j.jcis.2007.01.092 | DOI Listing |
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Article Synopsis
- The paper discusses the creation of uniformly dye-doped organosilica particles with a controlled size range from nanometers to micrometers while maintaining a consistent size.
- The particles exhibit significant swelling in solvents, swelling up to 2.5 times their original volume, which indicates a gel-like internal structure, important for dye encoding.
- A new coagulation model for particle formation is proposed, which challenges traditional methods like Stöber synthesis.
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