Figure 3. FTIR spectra in Panel A: tyrosine (1) and AuNPsTyr (2); in Panel B: PTA (1), AuNPsTyr@PTA (2), AuNPsTyr@PTA-Lys (3) and lysine (4); and in Panel C: PMA (1), AuNPsTyr@PMA (2), AuNPsTyr@PMA-Lys (3) and lysine (4).
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