A facile synthesis of multifunctional carbon dots as fluorescence ‘turn on’ and ‘turn off’ probes for selective detection of Al
3+
and 2,4,6‐trinitrophenol
Fluorescent carbon dots prepared by a heat treatment of ethylene glycol solution can act as fluorescence turn-on probes for sensitive and selective detection of Ag+ ions.
A naphthalimide based Fe3+ selective fluorescence ‘turn-on’ probe that operates based on a PET mechanism has been synthesized, and its application in the detection of Fe3+ ions in aqueous samples and in live cells is explored.