Communication—Fabrication of Uniform Hollow Cubic Ag Cages and The Application for Surface-Enhanced Raman Spectroscopy Detection

Abstract

In this study, a facial synthesis route for cubic Ag micro structure with well-defined hollow interior was developed. The fabricated hollow micro-cages were applied as the substrate for the detection of ultralow concentration of crystal violet (CV)-a poisonous organic pollutant. The substrate exhibits optimum SERS performance with a detection of 10−6 M of CV due to the unique hollow morphology, proving that it is a good candidate for SERS detection in the chemical and environmental field.

Role of Monocharged Anions and Cations in the Chemical Enhancement of Ag(0) Nanoparticle Surface-Enhanced Raman Scattering Systems

“…9 Among the most used metallic nanostructures for SERS are silver and gold nanoparticles. 10,11 Ag nanoparticles (NPs) can generate a much stronger and more sensitive surface plasmon resonance and, thus, provide stronger electromagnetic field enhancements in SERS detection. 12 Unfortunately, it is still a big challenge to create Ag NPs with uniform shapes, which are closely related to the repeatability and stability of SERS detection.…”