In biosensing, SERS is employed to detect and quantify biomolecules, pathogens, and other biological entities. For instance:
- Disease Diagnostics: SERS can identify biomarkers associated with diseases, enabling early diagnosis. - DNA Sequencing: It helps in detecting specific nucleotide sequences by offering high sensitivity and specificity. - Pathogen Detection: SERS can identify bacteria and viruses at extremely low concentrations, which is critical for rapid infection control.