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. 2023 Feb 11;257:124348. doi: 10.1016/j.talanta.2023.124348

Fig. 2.

Fig. 2

SEM images of (A) SPE, (B) SPE modified with AuNP, and (C) SPE modified with Pept/AuNP, with 30k times magnification; (D) FTIR spectra for AuNP and Pept/AuNP.