Nanoparticles offer several advantages in lateral flow assays:
High Surface Area: Nanoparticles have a high surface-to-volume ratio, allowing for the attachment of multiple antibodies or antigens, thereby increasing the signal intensity. Enhanced Optical Properties: Gold nanoparticles exhibit a strong surface plasmon resonance, which makes them highly visible under certain light conditions. This results in clearer and more easily interpretable test results. Multiplexing Capabilities: Different types of nanoparticles, such as quantum dots, can emit light at various wavelengths, enabling the simultaneous detection of multiple analytes in a single assay.
