Jump to main content
Jump to site search


Cysteine-Rich Protein-Templated Silver Nanoclusters as a Fluorometric Probe for Mercury(II) Detection

Abstract

In this paper, we explored a convenient method for preparing stable silver nanoclusters (AgNCs) within 1 h at room temperature using keratin as a template and NaBH4 as a reducing agent. As a group of cysteine-rich structural proteins, keratin are abundant in wool, hair and feathers. The prepared AgNCs exhibited high fluorescence intensity and stable emission at 705 nm. Their fluorescence intensity decreased by <20% after 3 months of storage in the dark at 4 °C. The AgNCs were then used to detect Hg2+ ions with high selectivity. The detection limit can be low to 6.5 nM, and the linear range was from 13.7 nM to 10 μM. Furthermore, the mechanism of the interaction of AgNCs with Hg2+ ions was studied using various analytical techniques, such as UV-vis, XRD, TEM and XPS.

Back to tab navigation

Publication details

The article was received on 05 Dec 2018, accepted on 04 Jan 2019 and first published on 04 Jan 2019


Article type: Paper
DOI: 10.1039/C8AY02662A
Citation: Anal. Methods, 2019, Accepted Manuscript
  •   Request permissions

    Cysteine-Rich Protein-Templated Silver Nanoclusters as a Fluorometric Probe for Mercury(II) Detection

    Y. Zhou, J. Wang, G. Yang, S. Ma, M. Zhang and J. Yang, Anal. Methods, 2019, Accepted Manuscript , DOI: 10.1039/C8AY02662A

Search articles by author

Spotlight

Advertisements