High sensitivity - Due to their strong LSPR effect, AuNPs can detect very low concentrations of analytes.
Selectivity - Functionalization of AuNPs with specific ligands or antibodies allows for targeted detection of specific molecules.
Stability - Gold is chemically inert, providing long-term stability to the sensors.
Scalability - AuNPs can be produced in large quantities using simple methods.
Reproducibility - Ensuring consistent size and shape of AuNPs is crucial for reliable sensor performance.
Functionalization - Attaching specific molecules to the surface of AuNPs can be complex and may affect their optical properties.
Cost - Although gold is stable, it is also expensive, which can increase the cost of the sensors.
Integration - Incorporating AuNP-based sensors into existing devices and systems can be challenging.
