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Fig. 4 | Journal of Nanobiotechnology

Fig. 4

From: Laccase-mimicking Mn–Cu hybrid nanoflowers for paper-based visual detection of phenolic neurotransmitters and rapid degradation of dyes

Fig. 4

a Comparison of catalytic activities of H–Mn–Cu NFs and free laccase to oxidize five different phenolic substrates (phenol, bisphenol A, hydroquinone, catechol, and 2-naphthol). Dose–response curves and linear calibration plots for determining b dopamine and c epinephrine by well plate-based assay using H–Mn–Cu NFs. Photographs show the real images of the assay with target concentrations of 0–0.55 mM. Error bars represent standard deviations obtained from four independent measurements

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