The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.
Colorimetric fluorescent paper strip with smartphone platform for quantitative detection of cadmium ions in real samples
Abstract
Instrument-free, portable and direct read-out mini-devices have wider application prospects in various fields, especially for real-time/on-site detection in environmental science. Herein, a colorimetric fluorescent sensor for detecting cadmium ions (Cd2+) based on aggregation-induced emission (AIE) was established, fluorescent paper strips integrated with smartphone platform was further designed for the visualization, on-site and quantitative detection of Cd2+. The colorimetric fluorescent sensor was prepared by mixing orange emission glutathione-stabilized gold nanoclusters (AuNCs) with blue emission ethylenediamine functionalized graphene oxide (EDA-GO), and introducing copper ions (Cu2+) to quench the orange emission of AuNCs while the blue emission served as a background reference without color change. The Cd2+ can induce Cu2+-GSH-AuNCs to aggregation and emit orange fluorescence, causing the fluorescent color of the sensor changed from blue to red with the limit of detection (LOD) as low as 33.3 nM in solution. Moreover, fluorescent paper strips integrated with smartphone platform has a sensitive detection of Cd2+ with the LOD of 0.1 μM in rice samples. The method reported here might have great application prospects in real-time monitoring of foods safety and environmental protection.
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Cites
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Aggregation-induced emission: phenomenon, mechanism and applications
Hong, Y., Lam, J. W. Y., & Tang, B. Z. (2009) · Chemical Communications · doi:10.1039/b904665h · Cited by 4,115
Current status of cadmium as an environmental health problem
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Macrocycles and cages based on tetraphenylethylene with aggregation-induced emission effect
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Metadata
- Authors
- Wang, H., Da, L., Yang, L., Chu, S., Yang, F., Yu, S., & Jiang, C.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2020-06
- Volume
- 392
- Pages
- 122506
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W3011148083
- Cited by
- 281
- References
- 17
- FWCI
- 12.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, H., Da, L., Yang, L., Chu, S., Yang, F., Yu, S., & Jiang, C. (2020). Colorimetric fluorescent paper strip with smartphone platform for quantitative detection of cadmium ions in real samples. Journal of Hazardous Materials. https://doi.org/10.1016/j.jhazmat.2020.122506
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