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Synthesis of Water-Soluble and Functionalized Nanoparticles by Silica Coating
Abstract
Synthetic methods for high-quality near-monodispersed nanoparticles of metals, metal oxides, and quantum dots in organic solvents are well-developed, but their applications are restricted due to the lack of water solubility and tailored surface chemistry. In this work, we report the silica-coating procedure for various hydrophobic nanoparticles, including Au, Ag, Fe 3 O 4, and ZnS−CdSe to derive water-soluble and functionalized nanoparticles. We have developed a silica-coating method in toluene using commercially available silanes. This approach is applicable to hydrophobic nanoparticles in the size range of 2−20 nm. Silica-coated nanoparticles are 10−30 nm in size, water-soluble, buffer-stable, and have a positive or negative surface charge depending on the surface functional group and solution pH. The coated particles have primary amine groups on the outer surface and are further functionalized with biotin and antibody.
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Cites
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
Sun, S., Murray, C. B., Weller, D., Folks, L., & Moser, A. (2000) · Science · doi:10.1126/science.287.5460.1989 · Cited by 6,137
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Functionalization of Inorganic Nanoparticles for Bioimaging Applications
Erathodiyil, N., & Ying, J. Y. (2011) · Accounts of Chemical Research · doi:10.1021/ar2000327 · Cited by 622
Self-citationIncreased antibacterial activity of ZnO nanoparticles: Influence of size and surface modification
Lallo da Silva, B., Caetano, B. L., Chiari-Andréo, B. G., Pietro, R. C. L. R., & Chiavacci, L. A. (2019) · Colloids and Surfaces B: Biointerfaces · doi:10.1016/j.colsurfb.2019.02.013 · Cited by 423
Specific Enrichment of Phosphoproteins Using Functionalized Multivalent Nanoparticles
Hwang, L., Ayaz-Guner, S., Gregorich, Z. R., Cai, W., Valeja, S. G., Jin, S., & Ge, Y. (2015) · Journal of the American Chemical Society · doi:10.1021/ja511833y · Cited by 70
Roberts, D. S., Chen, B., Tiambeng, T. N., Wu, Z., Ge, Y., & Jin, S. (2019) · Nano Research · doi:10.1007/s12274-019-2418-4 · Cited by 33
Metadata
- Authors
- Jana, N. R., Earhart, C., & Ying, J. Y.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-09-18
- Volume
- 19
- Issue
- 21
- Pages
- 5074-5082
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2048765821
- Cited by
- 308
- References
- 1
- FWCI
- 10.06
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jana, N. R., Earhart, C., & Ying, J. Y. (2007). Synthesis of Water-Soluble and Functionalized Nanoparticles by Silica Coating. Chemistry of Materials. https://doi.org/10.1021/cm071368z
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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