Fig. 8. Different kinds of AuNPs-based optical sensors for detection of food contaminants. (A) FRET-based sensor for Pb2+ ions with the use of DNAzyme. Reprinted from ref. 149 Copyright 2018, with permission from Elsevier. (B) Colorimetric (de-protection) aptasensor for 2 kinds of antibiotics TET and CAP. Reprinted from ref. 132 Copyright 2018, with permission from Elsevier. (C) SERS-based sensor using Au nanostars to detect thiram. Reprinted from ref. 112 Copyright 2018, with permission from Elsevier. (D) Colorimetric (crosslinking) sensor for bacteria with the use of thiolated chimeric phage. Reprinted with permission from ref. 169 Copyright (2019) American Chemical Society.
