Active Coordination Sensitization via Thermo- and pH-Regulated Molecular Recognition for Ultrasensitive SERS Quantification of Cu2+ and Zn2+
Accurate quantification of trace metal ions in complex biological matrices remains challenging because of severe matrix interference and sluggish metal–ligand coordination at ultralow concentrations. Herein, we report an active coordination sensitization strategy for surface-enhanced Raman scattering (SERS)-based metal...