Abstract
AbstractIn the current study, a polydiacetylene (PDA)‐based sensor, derived from a chelidamic acid‐picolylamine (CP)‐substituted diacetylene monomer, displayed a selective colorimetric and fluorometric change in the presence of cadmium (Cd2+) at pH 7.4. The PDA−CP solutions showed a colorimetric change from blue to violet in response to various amounts of Cd2+. The chemosensor also showed a rapid fluorescence turn‐on response and significant selectivity to Cd2+ compared with other metallic cations. The Cd2+‐selective PDA‐based sensor system facilitated the visual detection of Cd2+ in aqueous solution. The Cd2+ detection limit of PDA−CP was reduced to 1.85×10−5 M.
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