Colorimetric and fluorescent chemosensors for Cu2+. A comprehensive review from the years 2013-15

Colorimetric and fluorometric detection of copper ion (Cu2+) has attracted much attention due to the biological, environmental and medical significance of the Cu2+ ion. Colorimetric and fluorescent detection of metal ions have proven to be powerful methods due to their simplicity, cost effectiveness, high detection limit and applicability to bioimaging. This review will consolidate selective and sensitive Cu2+ ion detection achieved by various receptor types in the years between 2013 to 2015.