Cu nanoclusters-based ratiometric fluorescence probe for ratiometric and visualization detection of copper ions

Ascorbic acid stabilised copper nanoclusters as fluorescent sensors for detection of quercetin

“…Fe 3+ , 30 Cu 2+ , 31 and H 2 O 2 . 32,33 To our knowledge, Cu NCs are rarely utilized for detection of Que in real samples.…”

Fabrication of cefotaxime sodium-functionalized gold nanoclusters for the detection of copper ions in Chinese herbal medicines

“…46 As shown in Table 1, the performances of AuNCs@DCTX as a Cu 2+ sensor were compared with those of other nanocluster-based uorescence probes, and it was found that the proposed sensor was highly sensitive for Cu 2+ detection. 38,39,[44][45][46][47][48][49][50] The selectivity of AuNCs@DCTX towards Cu 2+ was evaluated by measuring the uorescence response of AuNCs@DCTX aer adding 20 mM of different common metal cations (Zn 2+ , Al 3+ , Ni 2+ , Co 2+ , Pb 2+ , Cr 3+ , Cd 2+ , Mn 2+ , Mg 2+ , K + , Bi 3+ , Ba 2+ , Ca 2+ , Fe 3+ and Hg 2+ ) without and with 20 mM Cu 2+ , separately. Fig.…”

Core–shell structured CdTe/CdS@SiO2@CdTe@SiO2 composite fluorescent spheres: Synthesis and application for Cd2+ detection

“…Wang also designed a dual‐emissive fluorescence nano‐hybrid probe, which was composed of green‐emissive gold nanoclusters covalently linked to a silica surface and red‐emissive QDs embedded in silica, for the fluorescent determination of Pb 2 + according to a change in the fluorescence color from green to yellow . However, the reported composite silica microspheres adopted a strategy in which the signal molecules were linked to the surface of the silica and no protective and stabilizing procedures were carried out . In this way, the stability and optical properties of the fluorophores linked on the silica surface were subject to variations caused by post processing.…”