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Schematic diagram of the colorimetric method for detecting Tamiflu resistance by OHT-modified Au NPs (OHT-Au NPs). Due to the OHT and anti-trimeric fluorescent virus combination, the color of OHT-Au NPs changed from dark red to purple (A). Adapted by permission from Ref. [55]. Schematic diagram of SERS LFM for nucleic acid detection of 11 RTI pathogens with RD-encoded SERS core-shell nano-tags (B). Adapted by permission from Ref. [98].
