Recent advances in the visual detection of ions and molecules based on gold and silver nanoclusters

Abstract

We illustrate the applications of Au/AgNCs for visual detection and bioimaging of various analytes, including metal ions, inorganic anions, small molecules, and biomacromolecules in solution and on filter papers, thin films and small devices.

Carbon dots@noble metal nanoparticle composites: research progress report

“…Commonly used templates are bovine serum albumin (BSA) 116,117 and DNA. 103 BSA has the advantages of easy availability, stable physical and chemical properties, no need for additional chemical reagents in the synthesis process, mild reaction conditions, and energy savings; 118 these advantages prompted researchers to study BSA-Au-AgNCs. A reaction with HAuCl 4 and AgNO 3 at 37 °C under mild conditions for 12 h used BSA as a template, in a one-pot green synthesis method.…”

Recyclable fluorescence sensing based on copper clusters for simultaneous determination of copper ions and ammonia

“…Therefore, a series of visual probes based on nanomaterials has been developed. For example, chemically modified semiconductor quantum dots (QDs), 7 especially CdS and CdTe QDs, 8,9 functionalized carbon quantum dots, [10][11][12] nanostructured metal/metal oxides such as ZnO-Co 3 O 4 NCs 13 and Au/Ag NCs [14][15][16] have been widely used for Cu sensing. While carbon nanotube (CNT), graphene, graphene oxide (GO), reduced graphene oxide (rGO), metal/ metal-oxide hybrid nanostructures based on ZnO/TiO 2 etc., [17][18][19][20] noble metal nanoparticles, 21 and metal-organic frameworks 22 have been developed for ammonia determination.…”