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Theoretical calculations also proved that the atop gold atom has more favorable interaction with phenyl iodide than the second layer gold atoms of the Au11@CeO2. This demonstrated that the present catalyst mimics the single-atom catalyst-like behavior in facilitating the coupling reactions.A protein-based therapy is significantly challenged by the successful delivery of native proteins into the targeted cancer cells. We address this challenge here using an all-sealed divalent aptamer tetrahedral DNA framework (asdTDF) delivery platform,

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Iodinated contrast media (ICM), which was widely used in medical imaging and was difficult to remove by conventional wastewater treatment methods, attained much attention due to its potential environmental impacts. Herein, iopamidol (IPM), one typical compound of ICM, was found to be rapidly degraded by ferrous activated persulfate oxidation (Fe(II)/PS) as compared with PS or Fe(II) alone. With a persulfate concentration of 1 mmol L-1, n(Fe(II))/n(PS) of 110, and a pH of 3.0, 78% IPM was degraded within 60 min, with a degradation rat