The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
High-Yield Synthesis of Multi-Branched Urchin-Like Gold Nanoparticles
Open accessAbstract
Here, we report on an aqueous room temperature synthesis method for the production of gold nanoparticles that have a number (>4) of branches ultimately resembling the shape of sea urchins. The particles are synthesized in the presence of water soluble thiol terminated molecules, used as ligand molecules. These nano-urchins are produced in high yield and exhibit unique optical properties. The thiolated ligands stabilize the particles, making it possible to dry them and store them for days. When redissolved, the particles show some aggregation but not a loss in shape; their extinction spectrum shows a shift in the plasmon resonance from 585 to 622 nm together with a peak broadening. Large local electromagnetic (EM) field enhancements are expected near the sharp featured branches of the nano-urchins. Finite difference time-domain (FDTD) calculations performed on a nanoparticle with four branches show enhancements of the light intensity relative to the incident field of approximately 3000-fold. We reason that these particles will find applications as materials for surface enhanced Raman scattering (SERS).
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Citations
Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
Yee, K. (1966) · IEEE Transactions on Antennas and Propagation · doi:10.1109/tap.1966.1138693 · Cited by 15,008
Fluidity of Bound Hydration Layers
Raviv, U., & Klein, J. (2002) · Science · doi:10.1126/science.1074481 · Cited by 721
Cited by
Gold Nanomaterials at Work in Biomedicine
Yang, X., Yang, M., Pang, B., Vara, M., & Xia, Y. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00193 · Cited by 1,162
The Synthesis of SERS-Active Gold Nanoflower Tags for In Vivo Applications
Xie, J., Zhang, Q., Lee, J. Y., & Wang, D. I. C. (2008) · ACS Nano · doi:10.1021/nn800442q · Cited by 622
Xie, J., Lee, J. Y., & Wang, D. I. C. (2007) · Chemistry of Materials · doi:10.1021/cm0700100 · Cited by 434
Complex nanostructures synthesized from nanoparticle colloids under an external electric field
Liu, P., Yang, S., Fang, M., Luo, X., & Cai, W. (2011) · Nanoscale · doi:10.1039/c1nr10808e · Cited by 15
Metadata
- Authors
- Bakr, O. M., Wunsch, B. H., & Stellacci, F.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-06-17
- Volume
- 18
- Issue
- 14
- Pages
- 3297-3301
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2047417642
- Cited by
- 250
- References
- 3
- FWCI
- 6.96
- Type
- journal article
- Language
- en
- Open access
- green
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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
