Abstract
We report the development of a novel colorimetric nitrite and nitrate ion assay based upon gold nanoparticle probes functionalized with Griess reaction reagents. This assay takes advantage of the distance-dependent plasmonic properties of the gold nanoparticles and the ability of nitrite ion to facilitate the cross coupling of novel nanoparticle probes modified with aniline and naphthalene moieties. The assay works on the concept of a kinetic end point and can be triggered at the EPA limit for this ion in drinking water (highlighted in red, -M). This rapid and simple assay could be useful for on-site water quality monitoring.
| Original language | English |
|---|---|
| Pages (from-to) | 6362-6363 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 131 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2009 May 13 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry
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Daniel, W. L., Han, M. S., Lee, J. S., & Mirkin, C. A. (2009). Colorimetric Nitrite and Nitrate detection with gold nanoparticle probes and kinetic end points. Journal of the American Chemical Society, 131(18), 6362-6363. https://doi.org/10.1021/ja901609k