Magnetic nanoprobes for rapid detection of copper ion in aqueous environment by surface-enhanced Raman spectroscopy.

ABSTRACT: Excessive copper ions in drinking water could cause serious health issues, such as gastrointestinal disorders and cirrhosis, and they are associated with Alzheimer's disease. ICP-OES, ICP-MS, and AAS are the most common methods of copper ion determination. However, the high cost of sample preparation and labor limit the possibility of on-site detection. In this study, rapid monitoring of copper ion through the SERS technique was evaluated. Fe₃O₄@SiO₂-Ag-4MBA nanoparticles were investigated as SERS-activated magnetic nanoprobes. These magnetic nanoprobes underwent superparamagnetism for rapid aggregation in seconds and provided selectivity in sensing copper ions. According to the dose-response curve of the SERS spectra, the limit of detection (LOD) was 0.421

SUBMITTER: Hsieh MY 

PROVIDER: S-EPMC8978930 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature