Synthesis of double gold nanoclusters/graphene oxide and its application as a new fluorescence probe for Hg²⁺ detection with greatly enhanced sensitivity and rapidity

Abstract

The paper reports a double gold nanoclusters/graphene oxide as a fluorescence probe with surprisingly enhanced sensitivity and rapidity for detection of Hg2+.

Smart nano-architectures as potential sensing tools for detecting heavy metal ions in aqueous matrices

“…In another study, the detection of Hg 2+ ions with double-gold nanoclusters/graphene oxide (D-GNCs/GO) has been reported via electrostatic interactions. where D-GNCs enhance the detection sensitivity and graphene oxide can stimulate the rate of reaction [131]. Graphene oxide decorated with AuNCs@BSA is employed for the identification and isolation of Hg 2+ ions based on the metal binding characteristic of AuNCs@BSA nanofibers and large surface area of graphene oxide.…”

The Roadmap of Graphene‐Based Optical Biochemical Sensors

“…Biochemical sensing using the fluorescence method is becoming a powerful technique in the health care sector because it is an efficient, reliable, repeatable, and simple detection technique in a very complex environment . Multi‐parameter sensing can be performed by fluorescent techniques, where different stimuli can be detected by using stimulus‐responsive biopolymers integrated with GQDs …”

Hybrids of Metal Nanoclusters and Graphene‐Based Materials: Preparation, Properties and Applications

“…On the other hand, the fabrication of a GO hybrid based on doubly fluorescent Au NCs as a probe for the detection of Hg 2+ was also accomplished . Briefly, two different Au NCs were prepared, one stabilized with BSA and another with lysine (Lys), each of them exhibiting strong photoluminescence at different wavelengths as well as opposite surface charges.…”