Fig. 2.

Fig. 2. Examples of nanoparticle-based LFA for enhancing sensitivity to EHEC Stxs. (A) Colorimetric gold nanoparticle (AuNP). (B) Fluorescent quantum dot. (C) AuNP with surface-enhanced Raman scattering (AuNP-SERS). In (C), AuNPs have nanostructures for Raman scattering.

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