Self-catalytic stabilized Ag-Cu nanoparticles with tailored SERS response for plasmonic photocatalysis

Explosives sensing using Ag–Cu alloy nanoparticles synthesized by femtosecond laser ablation and irradiation

“…8,53 He et al fabricated Ag-Cu alloy NPs by galvanic replacement technique and shown the tailorable SERS and catalysis activity. 54 Hu et al reported the Ag-Cu SERS substrate act as a promising material for detection R6G (10 À13 M). 55 The detection sensitivity of Ag-Cu NPs was examined by collecting the MB SERS spectra with varied concentrations (from 0.5 mM to 5 nM) and the data shown in Fig.…”

Plasmon-generated hot holes for chemical reactions

“…Dye degradation could also be realized with the assistance of the plasmon-generated hot holes [130,131]. Hu and co-workers have studied the role of the hot holes in the degradation of rhodamine 6G (R6G) on the silver-decorated copper nanoparticles [132]. As a control, the R6G degradation on bare copper nanoparticles was first carried out.…”

Nanomaterial based aptasensors for clinical and environmental diagnostic applications

“…Other metal-based nanoparticles like copper nanoparticles (CuNPs), iron nanoparticles (FeNPs), and platinum nanoparticles (PtNPs) are less exploited in colorimetric assays as transducers but rather explored for other properties like catalysis or magnetism. [65][66][67][68][69][70][71][72] Fluorescence based aptasensors Akin to colorimetric sensors, uorescent platforms rely on the changes in the uorescence signal between on and off states and in shi in wavelengths with spectrally overlapping uorescent pairs. This adds stringency to the assay by reducing the background signal and increasing sensitivity by applying a narrow excitation source.…”