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The detection of anions in water phase with colorimetric sensors is a long standing academic challenge. The work by X. Zhang and team on page 1506 detects F−1 in pure water phase by taking advantage of the strong specific binding between F and Si, as well as the color change property of Si nanowires. It shows ultra‐sensitivity, high selectivity, and good stability.
The detection of anions in pure water phase with colorimetric sensor is a long standing challenge. As one of the most important anions, F– is associated with nerve gases and the refinement of uranium for nuclear weapons. However, limited by its anions nature, few of the reported colorimetric sensors can successfully applied to detect F–1 in pure water phase. This work designs a colorimetric sensor...
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