Facile immunochromatographic assay based on metal–organic framework-decorated polydopamine for the determination of hydrochlorothiazide adulteration in functional foods

•A MOF@PDA-ICA was firstly developed for the detection of HCTZ in functional foods.•The sensitivity of MOF@PDA-ICA was 27-fold higher than that of the similar method.•A portable smartphone-based detection device was used for rapid quantification. Herein, a novel immunochromatographic assay (ICA) bas...

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