The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Shell Thickness-Dependent Raman Enhancement for Rapid Identification and Detection of Pesticide Residues at Fruit Peels
Abstract
Here, we report the shell thickness-dependent Raman enhancement of silver-coated gold nanoparticles (Au@Ag NPs) for the identification and detection of pesticide residues at various fruit peels. The Raman enhancement of Au@Ag NPs to a large family of sulfur-containing pesticides is ~2 orders of magnitude stronger than those of bare Au and Ag NPs, and there is a strong dependence of the Raman enhancement on the Ag shell thickness. It has been shown for the first time that the huge Raman enhancement is contributed by individual Au@Ag NPs rather than aggregated Au@Ag NPs with "hot spots" among the neighboring NPs. Therefore, the Au@Ag NPs with excellent individual-particle enhancement can be exploited as stand-alone-particle Raman amplifiers for the surface identification and detection of pesticide residues at various peels of fruits, such as apple, grape, mango, pear, and peach. By casting the particle sensors onto fruit peels, several types of pesticide residues (e.g., thiocarbamate and organophosphorous compounds) have been reliably/rapidly detected, for example, 1.5 nanograms of thiram per square centimeter at apple peel under the current unoptimized condition. The surface-lifting spectroscopic technique offers great practical potentials for the on-site assessment and identification of pesticide residues in agricultural products.
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Citations
Cites
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
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Shell-isolated nanoparticle-enhanced Raman spectroscopy
Li, J. F., Huang, Y. F., Ding, Y., Yang, Z. L., Li, S. B., Zhou, X. S., Fan, F. R., Zhang, W., Zhou, Z. Y., Wu, D. Y., et al. (2010) · Nature · doi:10.1038/nature08907 · Cited by 3,559
Controlling the Synthesis and Assembly of Silver Nanostructures for Plasmonic Applications
Rycenga, M., Cobley, C. M., Zeng, J., Li, W., Moran, C. H., Zhang, Q., Qin, D., & Xia, Y. (2011) · Chemical Reviews · doi:10.1021/cr100275d · Cited by 2,828
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
Nanogap-engineerable Raman-active nanodumbbells for single-molecule detection
Lim, D.-K., Jeon, K.-S., Kim, H. M., Nam, J.-M., & Suh, Y. D. (2010) · Nature Materials · doi:10.1038/nmat2596 · Cited by 1,189
Single-molecule and single-nanoparticle SERS: from fundamental mechanisms to biomedical applications
Qian, X.-M., & Nie, S. M. (2008) · Chemical Society Reviews · doi:10.1039/b708839f · Cited by 1,105
Controlled Plasmonic Nanostructures for Surface-Enhanced Spectroscopy and Sensing
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SERS as a bioassay platform: fundamentals, design, and applications
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Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates
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Self-citation
Cited by
Self‐Assembled Plasmonic Nanoring Cavity Arrays for SERS and LSPR Biosensing
Im, H., Bantz, K. C., Lee, S. H., Johnson, T. W., Haynes, C. L., & Oh, S. (2013) · Advanced Materials · doi:10.1002/adma.201204283 · Cited by 273
Zhu, J., Sharma, A. S., Xu, J., Xu, Y., Jiao, T., Ouyang, Q., Li, H., & Chen, Q. (2021) · Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy · doi:10.1016/j.saa.2020.118994 · Cited by 119
Fan, Y., Lai, K., Rasco, B. A., & Huang, Y. (2015) · LWT - Food Science and Technology · doi:10.1016/j.lwt.2014.08.011 · Cited by 116
Metadata
- Authors
- Liu, B., Han, G., Zhang, Z., Liu, R., Jiang, C., Wang, S., & Han, M.-Y.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-12-15
- Volume
- 84
- Issue
- 1
- Pages
- 255-261
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W2326312798
- Cited by
- 434
- References
- 32
- FWCI
- 8.58
- Type
- journal article
- Language
- en
- Open access
- closed
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