Fig. 12. Several AuNPs-based colorimetric sensors for infectious pathogens designed for detecting different kinds of target. (A) Genome. Colorimetric (de-protection) sensor for detection of Tuberculosis. Reprinted with permission from ref. 268 Copyright (2017) American Chemical Society. (B) Whole virus particle. Colorimetric (crosslinking) sensor for detection of SARS-CoV-2. Reprinted with permission from ref. 224 Copyright (2020) American Chemical Society. (C) Antibody. Colorimetric (crosslinking) sensor for detection of SARS-CoV-2. Reprinted with permission from ref. 277. Copyright (2021) American Chemical Society. (D) Spike protein. Colorimetric (anti-aggregation) sensor for detection of SARS-CoV-2. Reprinted from ref. 279 Copyright 2021, with permission from Elsevier.