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https://doi.org/10.21256/zhaw-29683| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Investigation of silica particle growth by incorporation of a pyrene fluorescent probe |
| Authors: | Walther, Fabian Brühwiler, Dominik |
| et. al: | No |
| DOI: | 10.1016/j.colsurfa.2024.133234 10.21256/zhaw-29683 |
| Published in: | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
| Volume(Issue): | 685 |
| Issue: | 133234 |
| Issue Date: | 2024 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 0927-7757 |
| Language: | English |
| Subjects: | Stöber; Silica; Particle; Fluorescence; Excimer; Pyrene; Growth; Aggregation; Monomer addition |
| Subject (DDC): | 540: Chemistry |
| Abstract: | The growth of silica particles synthesized by the Stöber method was investigated by the co-condensation of pyrene sulfonyl chloride (PySCl) coupled to (3-aminopropyl)triethoxysilane (APTES). Growth by monomer addition could be distinguished from growth by aggregation based on the intensity of the pyrene excimer emission of the resulting particles. The influence of the base concentration, water/ethanol ratio, solvent, temperature, and type of silica precursor was studied. At high hydrolysis rates, the growth occurred primarily by aggregation, whereas growth by monomer addition was predominant at low hydrolysis rates. The results were confirmed by evaluating the accessibility of the co-condensed pyrene moieties and by determining the porosity of the particles. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/29683 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | Life Sciences and Facility Management |
| Organisational Unit: | Institute of Chemistry and Biotechnology (ICBT) |
| Appears in collections: | Publikationen Life Sciences und Facility Management |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2024_Walther-Bruehwiler_Silica-particle-growth-investigation.pdf | Article | 2.7 MB | Adobe PDF |  View/Open |
| 2024_Walther-Bruehwiler_Silica-particle-growth-investigation_Suppl.pdf | Supporting Material | 1.85 MB | Adobe PDF |  View/Open |
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Walther, F., & Brühwiler, D. (2024). Investigation of silica particle growth by incorporation of a pyrene fluorescent probe. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 685(133234). https://doi.org/10.1016/j.colsurfa.2024.133234
Walther, F. and Brühwiler, D. (2024) ‘Investigation of silica particle growth by incorporation of a pyrene fluorescent probe’, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 685(133234). Available at: https://doi.org/10.1016/j.colsurfa.2024.133234.
F. Walther and D. Brühwiler, “Investigation of silica particle growth by incorporation of a pyrene fluorescent probe,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 685, no. 133234, 2024, doi: 10.1016/j.colsurfa.2024.133234.
WALTHER, Fabian und Dominik BRÜHWILER, 2024. Investigation of silica particle growth by incorporation of a pyrene fluorescent probe. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2024. Bd. 685, Nr. 133234. DOI 10.1016/j.colsurfa.2024.133234
Walther, Fabian, and Dominik Brühwiler. 2024. “Investigation of Silica Particle Growth by Incorporation of a Pyrene Fluorescent Probe.” Colloids and Surfaces A: Physicochemical and Engineering Aspects 685 (133234). https://doi.org/10.1016/j.colsurfa.2024.133234.
Walther, Fabian, and Dominik Brühwiler. “Investigation of Silica Particle Growth by Incorporation of a Pyrene Fluorescent Probe.” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 685, no. 133234, 2024, https://doi.org/10.1016/j.colsurfa.2024.133234.
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