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Colloidal Suspensions of Functionalized Mesoporous Silica Nanoparticles
Abstract
The synthesis and characterization of colloidal mesoporous silica (CMS) functionalized with vinyl-, benzyl-, phenyl-, cyano-, mercapto-, aminopropyl- or dihydroimidazole moieties is reported. Uniform mesoporous particles ranging in size from 40 to 150 nm are generated in a co-condensation process of tetraethylorthosilicate (TEOS) and organotriethoxysilanes (RTES) in alkaline aqueous media containing triethanolamine (TEA) in combination with cetyltrimethylammonium chloride (CTACl) serving as a structure-directing agent. The materials are obtained as colloidal suspensions featuring long-term stability after template removal by ion exchange with an ethanolic solution of ammonium nitrate or HCl. The spherical particles exhibit a wormlike pore system with defined pore sizes and high surface areas. Samples are analyzed by a number of techniques including TEM, SEM, DLS, TGA, Raman, and cross-polarized (29)Si-MAS NMR spectroscopy, as well as nitrogen sorption measurements. We demonstrate that co-condensation and grafting methods result in similar changes in the nitrogen adsorption behavior, indicating a successful internal lining of the pores with functional groups through both procedures.
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Cited by
Antimicrobial Activity of Silver Nanocrystals Encapsulated in Mesoporous Silica Nanoparticles
Liong, M., France, B., Bradley, K. A., & Zink, J. I. (2009) · Advanced Materials · doi:10.1002/adma.200802646 · Cited by 262
Chang, B., Chen, D., Wang, Y., Chen, Y., Jiao, Y., Sha, X., & Yang, W. (2013) · Chemistry of Materials · doi:10.1021/cm3037197 · Cited by 170
Yang, L., Li, N., Pan, W., Yu, Z., & Tang, B. (2015) · Analytical Chemistry · doi:10.1021/ac503975x · Cited by 99
Shadmani, N., Makvandi, P., Parsa, M., Azadi, A., Nedaei, K., Mozafari, N., Poursina, N., Mattoli, V., Tay, F. R., Maleki, A., et al. (2023) · Molecular Pharmaceutics · doi:10.1021/acs.molpharmaceut.2c00755 · Cited by 48
Metadata
- Authors
- Kobler, J., Möller, K., & Bein, T.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-03-22
- Volume
- 2
- Issue
- 4
- Pages
- 791-799
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2030641628
- Cited by
- 271
- References
- 0
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- closed
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