We designed and developed the probe W-3 for detection of Cu. The results showed probe can selectively detect Cu, accompanied by noticeable color change. The probe can detect the Cu in water samples and drinks based on absorption detection. In addition, the combination of portable test paper and the smartphone platform obtained great convenience for on-site and visual detection of Cu, with satisfactory sensitivity and reliability. More importantly, the fluorescence probe W-3 can be used for the detection of Cu in cells and mice. Therefore, the W-3 provided potential chemical tools for detecting Cu in vitro and vivo.
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