Weinzierl, Daniel and Lind, Anke and Kunz, Werner (2009) Hollow SiO2 Microspheres Produced by Coating Yeast Cells. CRYSTAL GROWTH & DESIGN, 9 (5). pp. 2318-2323. ISSN 1528-7483,
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Hollow silica microspheres were produced by coating yeast cells with amorphous SiO2. In the precipitation reaction, yeast cells of Saccharomyces cerevisiae were used as a biological template. The silica shell was synthesized by the hydrolysis of tetraethylorthosilicate (TEOS) in water-alcohol mixtures as solvent using ammonia as a catalyst according to the Stoeber process. The hollow microspheres were characterized by means of scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Both smooth and textured coatings were prepared. The biological template can be removed by calcining, after which the particle morphology persists. Additionally, density and light scattering coefficients of the pigment were measured.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BUBBLE TEMPLATING METHOD; MESOPOROUS SILICA; CALCIUM-CARBONATE; SPHERES; PARTICLES; FABRICATION; VESICLES; COLLOIDS; NANOPARTICLES; MULTILAYERS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Sep 2020 08:47 |
| Last Modified: | 16 Sep 2020 08:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29031 |
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