Synergistic coupling of a spherical nucleic acid DNA walker and a redox cascade for self-calibrated ratiometric detection of endocrine disruptors.

Endocrine-disrupting chemicals (EDCs), such as 17β-estradiol (E2) and bisphenol A (BPA), are pervasive environmental contaminants that pose significant health risks even at trace concentrations. Their on-site monitoring remains challenging due to ins…

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