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Gold Nanoparticle-Based Miniaturized Nanomaterial Surface Energy Transfer Probe for Rapid and Ultrasensitive Detection of Mercury in Soil, Water, and Fish
Abstract
Contamination of the environment with mercury has been an important concern throughout the world for decades. Exposure to high Hg levels can be harmful to the brain, heart, kidneys, lungs, and immune system of humans of all ages. Driven by the need to detect trace amounts of mercury in environmental samples, here we present a miniaturized, inexpensive, and battery-operated ultrasensitive gold nanoparticle-based nanomaterial surface energy transfer probe for screening mercury levels in contaminated soil, water, and fish which has excellent sensitivity (2 ppt) and selectivity for Hg(II) over competing analytes, with the largest fluorescence enhancement to date for sensing Hg(II) in environmental samples (1100-fold). The sensitivity of our probe to detect mercury level in soil, water, and fish is about 2-3 orders of magnitude higher than the EPA standard limit. We demonstrate that our probe is suitable to screen the amount of mercury in different fish, shellfish, and water samples from various commercial sources.
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Cited by
Toxicity and Environmental Risks of Nanomaterials: Challenges and Future Needs
RAY, P. C., YU, H., & FU, P. P. (2009) · Journal of Environmental Science and Health, Part C · doi:10.1080/10590500802708267 · Cited by 936
Self-citationWang, F., Wang, Y.-C., Dou, S., Xiong, M.-H., Sun, T.-M., & Wang, J. (2011) · ACS Nano · doi:10.1021/nn200007z · Cited by 813
Ray, P. C. (2010) · Chemical Reviews · doi:10.1021/cr900335q · Cited by 773
Self-citationColorimetric Detection of Pb2+ Using Glutathione Functionalized Gold Nanoparticles
Chai, F., Wang, C., Wang, T., Li, L., & Su, Z. (2010) · ACS Applied Materials & Interfaces · doi:10.1021/am100107k · Cited by 375
Metadata
- Authors
- Darbha, G. K., Ray, A., & Ray, P. C.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-10-31
- Volume
- 1
- Issue
- 3
- Pages
- 208-214
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W1982042067
- Cited by
- 312
- References
- 0
- FWCI
- 11.36
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Gold Nanoparticle-Based Miniaturized Nanomaterial Surface Energy Transfer Probe for Rapid and Ultrasensitive Detection of Mercury in Soil, Water, and Fish. https://app.cochat.ai/papers/10.1021/nn7001954
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- Darbha, G. K., Ray, A., & Ray, P. C. (2007). Gold Nanoparticle-Based Miniaturized Nanomaterial Surface Energy Transfer Probe for Rapid and Ultrasensitive Detection of Mercury in Soil, Water, and Fish. ACS Nano. https://doi.org/10.1021/nn7001954
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