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Citrate-Stabilized Gold Nanorods
Open accessAbstract
Stable aqueous dispersions of citrate-stabilized gold nanorods (cit-GNRs) have been prepared in scalable fashion by surfactant exchange from cetyltrimethylammonium bromide (CTAB)-stabilized GNRs, using polystyrenesulfonate (PSS) as a detergent. The surfactant exchange process was monitored by infrared spectroscopy, surface-enhanced Raman scattering (SERS), and X-ray photoelectron spectroscopy (XPS). The latter established the quantitative displacement of CTAB (by PSS) and of PSS (by citrate). The Cit-GNRs are indefinitely stable at low ionic strength, and are conducive to further ligand exchange without loss of dispersion stability. The reliability of the surface exchange process supports the systematic analysis of ligand structure on the hydrodynamic size of GNRs, as described in a companion paper.
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Cited by
SERS Nanoparticles in Medicine: From Label-Free Detection to Spectroscopic Tagging
Lane, L. A., Qian, X., & Nie, S. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00265 · Cited by 873
Surface-enhanced Raman spectroscopy: a half-century historical perspective
Yi, J., You, E.-M., Hu, R., Wu, D.-Y., Liu, G.-K., Yang, Z.-L., Zhang, H., Gu, Y., Wang, Y.-H., Wang, X., et al. (2025) · Chemical Society Reviews · doi:10.1039/d4cs00883a · Cited by 382
Anceschi, C., Scavone, F., Armanetti, P., Menichetti, L., Catarinicchia, C., Borri, C., Ratto, F., Micheletti, F., Formica, N., Ruzzolini, J., et al. (2025) · Advanced Healthcare Materials · doi:10.1002/adhm.202502416 · Cited by 7
Metadata
- Authors
- Mehtala, J. G., Zemlyanov, D. Y., Max, J. P., Kadasala, N., Zhao, S., & Wei, A.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-11-07
- Volume
- 30
- Issue
- 46
- Pages
- 13727-13730
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2006936337
- Cited by
- 176
- References
- 0
- FWCI
- 2.24
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Mehtala, J. G., Zemlyanov, D. Y., Max, J. P., Kadasala, N., Zhao, S., & Wei, A. (2014). Citrate-Stabilized Gold Nanorods. Langmuir. https://doi.org/10.1021/la5029542
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