| AgNP | Ag nanoparticle |
| AEF | Analytical enhancement factor |
| EF | Enhancement factors |
| LSPR | Local surface plasmon resonance |
| UV–vis | Ultraviolet–visible |
| LEF | Local electric field |
| PSPs | Propagating surface plasmons |
| R6G | Rhodamine 6G |
| RSD | Relative standard deviation |
| SEM | Scanning electron microscopy |
| SERS | Surface-enhanced Raman spectroscopy |
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