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Gold‐Nanocluster‐Based Fluorescent Sensors for Highly Sensitive and Selective Detection of Cyanide in Water
Abstract
A novel, gold‐nanocluster‐based fluorescent sensor for cyanide in aqueous solution, which is based on the cyanide etching‐induced fluorescence quenching of gold nanoclusters, is reported. In addition to offering high selectivity due to the unique Elsner reaction between cyanide and the gold atoms of gold nanoclusters, this facile, environmentally friendly and cost‐effective method provides high sensitivity. With this sensor, the lowest concentration to quantify cyanide ions could be down to 200 × 10−9 M, which is approximately 14 times lower than the maximum level (2.7 × 10−6 M) of cyanide in drinking water permitted by the World Health Organization (WHO). Furthermore, several real water samples spiked with cyanide, including local groundwater, tap water, pond water, and lake water, are analyzed using the sensing system, and experimental results show that this fluorescent sensor exhibits excellent recoveries (over 93%). This gold‐nanocluster‐based fluorescent sensor could find applications in highly sensitive and selective detection of cyanide in food, soil, water, and biological samples.
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Citations
Cited by
Gold Nanomaterials at Work in Biomedicine
Yang, X., Yang, M., Pang, B., Vara, M., & Xia, Y. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00193 · Cited by 1,162
Sub-nanometre sized metal clusters: from synthetic challenges to the unique property discoveries
Lu, Y., & Chen, W. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15325d · Cited by 1,152
Horseradish Peroxidase Functionalized Fluorescent Gold Nanoclusters for Hydrogen Peroxide Sensing
Wen, F., Dong, Y., Feng, L., Wang, S., Zhang, S., & Zhang, X. (2011) · Analytical Chemistry · doi:10.1021/ac1031447 · Cited by 549
Luminescent Noble Metal Nanoclusters as an Emerging Optical Probe for Sensor Development
Yuan, X., Luo, Z., Yu, Y., Yao, Q., & Xie, J. (2013) · Chemistry – An Asian Journal · doi:10.1002/asia.201201236 · Cited by 328
Use of Fluorescent DNA-Templated Gold/Silver Nanoclusters for the Detection of Sulfide Ions
Chen, W.-Y., Lan, G.-Y., & Chang, H.-T. (2011) · Analytical Chemistry · doi:10.1021/ac202162u · Cited by 283
Metadata
- Authors
- Liu, Y., Ai, K., Cheng, X., Huo, L., & Lu, L.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2010-03-22
- Volume
- 20
- Issue
- 6
- Pages
- 951-956
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2085975911
- Cited by
- 426
- References
- 0
- FWCI
- 16.68
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, Y., Ai, K., Cheng, X., Huo, L., & Lu, L. (2010). Gold‐Nanocluster‐Based Fluorescent Sensors for Highly Sensitive and Selective Detection of Cyanide in Water. Advanced Functional Materials. https://doi.org/10.1002/adfm.200902062
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