Reversible turn-on fluorescent sensors of Cu(ii) are of high interest for biological studies. We re-investigate a reported sensor, showing that turn-on occurs via irreversible Cu(ii)-induced sensor oxidation only in the… Click to show full abstract
Reversible turn-on fluorescent sensors of Cu(ii) are of high interest for biological studies. We re-investigate a reported sensor, showing that turn-on occurs via irreversible Cu(ii)-induced sensor oxidation only in the presence of acetonitrile. This prevents its application in biological studies and highlights the challenge of establishing a reversible Cu(ii) turn-on sensor.
               
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