Oligonucleotide-induced regulation of the oxidase-mimicking activity of octahedral Mn 3 O 4 nanoparticles for colorimetric detection of heavy metals

References

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304Oligonucleotide-induced regulation of the oxidase-mimicking activity of octahedral Mn 3 O 4 nanoparticles for colorimetric detection of heavy metalshttps://doi.org/10.1007/s00604-019-4069-2Metal oxideA colorimetric assay for the determination of heavy metal ions is presented that is based on the regulation of the oxidase-mimicking activity of Mn3O4 nanoparticles (NPs)

Materials

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BET
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304Mn3O4 nanoparticles50-250nmSEMThe observation indicates that most of nanoparticlesexhibit regular octahedral shape, with the size range of 50–250 nm

Kinetics

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Applications

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304Mn3O4 NPsdetection of heavy metalsCd(II)Color5-100μg/L2.4μg/L
304Mn3O4 NPsdetection of heavy metalsHg(II)Color10-200μg/L3.8μg/L