The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
SERS-Active Nanoparticles for Sensitive and Selective Detection of Cadmium Ion (Cd2+)
Abstract
We report a new class of turn-on surface enhanced Raman scattering (SERS) sensors for the sensitive and selective detection of cadmium ion (Cd 2+ ) by taking advantage of the interparticle plasmonic coupling generated in the process of Cd 2+ -selective nanoparticle self-aggregation. The SERS-active nanoparticles consist of 41-nm gold nanoparticles, encoded with a Raman-active dye through a disulfide anchoring group, and a layer of Cd 2+ -chelating polymer brush coating grafted on the nanoparticle via surface-initiated atom transfer radical polymerization. These SERS nanoparticles are optimized to remain spectrally silent when staying as single particles. Addition of Cd 2+ leads to interparticle self-aggregation and immediately turns on the SERS fingerprint signal with up to 90-fold of signal enhancement. The selectivity of the SERS nanoparticle for Cd 2+ was also examined, showing that various common metal ions cannot induce interparticle self-aggregation and the turn-on of SERS signal. In contrast to nanoparticle-based colorimetric assays, the SERS probe is also capable of detecting Cd 2+ in heavily colored samples.
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Cites
In vivo tumor targeting and spectroscopic detection with surface-enhanced Raman nanoparticle tags
Qian, X., Peng, X.-H., Ansari, D. O., Yin-Goen, Q., Chen, G. Z., Shin, D. M., Yang, L., Young, A. N., Wang, M. D., & Nie, S. (2008) · Nature Biotechnology · doi:10.1038/nbt1377 · Cited by 2,201
Toward a Glucose Biosensor Based on Surface-Enhanced Raman Scattering
Shafer-Peltier, K. E., Haynes, C. L., Glucksberg, M. R., & Van Duyne, R. P. (2003) · Journal of the American Chemical Society · doi:10.1021/ja028255v · Cited by 653
Cited by
Song, J., Zhou, J., & Duan, H. (2012) · Journal of the American Chemical Society · doi:10.1021/ja305154a · Cited by 438
Self-citationHu, J., Qian, Y., Wang, X., Liu, T., & Liu, S. (2012) · Langmuir · doi:10.1021/la203992q · Cited by 124
Metadata
- Authors
- Yin, J., Wu, T., Song, J., Zhang, Q., Liu, S., Xu, R., & Duan, H.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-10-13
- Volume
- 23
- Issue
- 21
- Pages
- 4756-4764
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2313529616
- Cited by
- 176
- References
- 2
- FWCI
- 6.31
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yin, J., Wu, T., Song, J., Zhang, Q., Liu, S., Xu, R., & Duan, H. (2011). SERS-Active Nanoparticles for Sensitive and Selective Detection of Cadmium Ion (Cd2+). Chemistry of Materials. https://doi.org/10.1021/cm201791r
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