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. Author manuscript; available in PMC: 2019 Jul 21.
Published in final edited form as: Analyst. 2018 Jun 20;143(14):3249–3283. doi: 10.1039/c8an00731d

Fig. 19.

Fig. 19

Schematic illustration of colorimetric detection of H2O2 by catalytic activity of ZnS-MMT nanocomposites. ZnS-MMT catalyzes the decomposition of H2O2 to OH radicals to oxidize TMB to form blue-colored oxTMB [329]. Reprinted with permission