Journal
CHEMICAL COMMUNICATIONS
Volume 55, Issue 3, Pages 322-325Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc09109a
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Funding
- Department of Science and Technology (DST), New Delhi, India under the DST-INSPIRE faculty award scheme [DST/INSPIRE/04/2016/001173]
- Newton International Fellowship [AL170006\1]
- Indian Institute of Science, Bangalore
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We demonstrate a novel strategy to synthesize highly stable luminescent mercaptoimidazole-capped copper nanoclusters (CuNCs). Herein we depict that a simple modification of substituents on the mercaptoimidazole ligand dictates the self-assembly and photophysical properties of the clusters. These CuNCs showed aggregation induced emission (AIE) with a large Stokes shift ( > 200 nm), and the formation of clusters corresponding to Cu4L3 was confirmed by MALDI-TOF mass spectrometric analyses. Interestingly, these nanoclusters effectively internalize into mammalian cells while retaining their fluorescent properties and exhibit negligible toxicity.
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