Despite its advantages, plasmonic sensing faces several challenges:
Reproducibility: Variability in nanostructure fabrication can lead to inconsistent sensor performance. Stability: Noble metals can undergo oxidation and other surface changes over time, affecting sensor reliability. Complexity: The need for precise control over nanostructure size, shape, and arrangement adds complexity to the fabrication process. Cost: High-quality nanomaterials and fabrication techniques can be expensive, limiting widespread adoption.
