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Fig. 4 | Journal of Nanobiotechnology

Fig. 4

From: Advances in aptamer screening and aptasensors’ detection of heavy metal ions

Fig. 4

A The fluorescence intensity of the sensor at different As3+ concentrations. B The correlation between the logarithm of As3+ concentration and fluorescence intensity at 520 nm wavelength. C The fluorescence intensity of the sensor is: (a)without As3+, (b)without Exo III, (c)without Mg2+, (d)10 nM As3+, 2 unit/μL Exo III, and 100 mM Mg2+. D Selectivity investigation of sensing platform for As3+ against other competing heavy metal ions [112]

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