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Modulating the coordination configuration of single Fe atom has been an efficient strategy to strengthen the redox dynamics for lithium‐sulfur batteries (LSBs) but remains challenging. Herein, the single Fe atom is functioned with nitrogen and carbon atoms in the first shell, and simultaneously, oxidized sulfur (─SOx) in the second shell, which presents a lower antibonding state and well address the...
Electrochemical bioassays based on oxidase reactions are frequently used in biological sciences and medical industries. However, the enzymatic reaction kinetics are severely restricted by the poor solubility and slow diffusion rate of oxygen in conventional solid‒liquid diphase reaction systems, which inevitably compromises the detection accuracy, linearity, and reliability of the oxidase‐based bioassay...
Noninvasive bioassays based on the principle of a hydrogen peroxide (H2O2) cathodic reaction are highly desirable for low concentration analyte detection within biofluids since the reaction is immune to interference from oxidizable species. However, the inability to selectively reduce H2O2 over O2 for commonly used stable catalysts (carbon or noble metals) is one of the key factors limiting their...
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