The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Colorimetric Assay for Lead Ions Based on the Leaching of Gold Nanoparticles
Abstract
A colorimetric, label-free, and nonaggregation-based gold nanoparticles (Au NPs) probe has been developed for the detection of Pb(2+) in aqueous solution, based on the fact that Pb(2+) ions accelerate the leaching rate of Au NPs by thiosulfate (S(2)O(3)(2-)) and 2-mercaptoethanol (2-ME). Au NPs reacted with S(2)O(3)(2-) ions in solution to form Au(S(2)O(3))(2)(3-) complexes on the Au NP surfaces, leading to slight decreases in their surface plasmon resonance (SPR) absorption. Surface-assisted laser desorption/ionization time-of-flight ionization mass spectrometry (SALDI-TOF MS) data reveals the formation of Pb-Au alloys on the surfaces of the Au NPs in the presence of Pb(2+) ions and 2-ME. The formation of Pb-Au alloys accelerated the Au NPs rapidly dissolved into solution, leading to dramatic decreases in the SPR absorption. The 2-ME/S(2)O(3)(2-)-Au NP probe is highly sensitive (LOD = 0.5 nM) and selective (by at least 1000-fold over other metal ions) toward Pb(2+) ions, with a linear detection range (2.5 nM-10 muM) over nearly 4 orders of magnitude. The cost-effective probe allows rapid and simple determination of the concentrations of Pb(2+) ions in environmental samples (Montana soil and river), with results showing its great practicality for the detection of lead in real samples.
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Citations
Cites
Nanostructures in Biodiagnostics
Rosi, N. L., & Mirkin, C. A. (2005) · Chemical Reviews · doi:10.1021/cr030067f · Cited by 4,603
Cited by
A Review on Metal- and Metal Oxide-Based Nanozymes: Properties, Mechanisms, and Applications
Liu, Q., Zhang, A., Wang, R., Zhang, Q., & Cui, D. (2021) · Nano-Micro Letters · doi:10.1007/s40820-021-00674-8 · Cited by 745
Gold nanoparticle probes for the detection of mercury, lead and copper ions
Lin, Y.-W., Huang, C.-C., & Chang, H.-T. (2011) · The Analyst · doi:10.1039/c0an00652a · Cited by 379
Self-citationZhang, Z., Wang, H., Chen, Z., Wang, X., Choo, J., & Chen, L. (2018) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2018.05.015 · Cited by 375
Qin, L., Zeng, G., Lai, C., Huang, D., Xu, P., Zhang, C., Cheng, M., Liu, X., Liu, S., Li, B., et al. (2018) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2018.01.006 · Cited by 332
Qian, Z. S., Shan, X. Y., Chai, L. J., Chen, J. R., & Feng, H. (2015) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2014.12.057 · Cited by 295
Metadata
- Authors
- Chen, Y.-Y., Chang, H.-T., Shiang, Y.-C., Hung, Y.-L., Chiang, C.-K., & Huang, C.-C.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-10-23
- Volume
- 81
- Issue
- 22
- Pages
- 9433-9439
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W1979958534
- Cited by
- 229
- References
- 1
- FWCI
- 8.38
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
