An important trend in improving the performance of LFIA for oral fluid biomarkers detection is the implementation of signal enhancement strategies beyond standard colorimetric LFIA, including the integration of plasmonic nanostructures of various natures, post-analysis enzymatic/nanozyme and chemical amplification, magnetic preconcentration, electrochemical labels and Raman scattering (SERS) tags [ 11 , 114 , 133 ].
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Immunosensing Platforms for Detection of Metabolic Biomarkers in Oral Fluids.
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