Sensitive and Selective Detection of Copper Ions with Highly Stable Polyethyleneimine-Protected Silver Nanoclusters
Citations Over TimeTop 10% of 2013 papers
Abstract
Copper is a highly toxic environmental pollutant with bioaccumulative properties. Therefore, sensitive Cu(2+) detection is very important to prevent over-ingestion, and visual detection using unaugmented vision is preferred for practical applications. In this study, hyperbranched polyethyleneimine-protected silver nanoclusters (hPEI-AgNCs) were successfully synthesized using a facile, one-pot reaction under mild conditions. The hPEI-AgNCs were very stable against extreme pH, ionic strength, temperature, and photoillumination and could act as sensitive and selective Cu(2+) sensing nanoprobes in aqueous solutions with a 10 nM limit of detection. In addition, hPEI-AgNCs-doped agarose hydrogels were developed as an instrument-free and regenerable platform for visual Cu(2+) and water quality monitoring.
Related Papers
- → New Advances in Atomically Precise Silver Nanoclusters(2019)142 cited
- → Modulation of the Double-Helical Cores: A New Strategy for Structural Predictions of Thiolate-Protected Gold Nanoclusters(2020)18 cited
- → Structural Engineering of Heterometallic Nanoclusters(2015)2 cited
- → Photophysical Characterization of Fluorescent Lysozyme Stabilized Gold Nanoclusters and their Applications(2016)1 cited
- → Assembly of metal nanoclusters(2023)