Nanocavity-based single-molecule plasmon-enhanced Raman spectroscopy: Features and advancements.

Since 1997, driven by advancements in nanoscience, single-molecule plasmon-enhanced Raman spectroscopy (SM-PERS) has developed into a powerful technique for ultrasensitive trace analysis through fingerprint vibrational chemical information. The nanocavity between the coupled plasmonic nanostructures, offering an exceptionally high Raman signal enhancement factor (i.e.

The Role of Water Content of Deep Eutectic Solvent Ethaline in the Anodic Process of Gold Electrode.

Traditional coupling of ligands for gold wet etching makes large-scale applications problematic. Deep eutectic solvents (DESs) are a new class of environment-friendly solvents, which could possibly overcome the shortcomings. In this work, the effect of water content on the Au anodic process in DES ethaline was investigated by combining linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS).