A simplistic approach to green future with eco-friendly luminescent carbon dots and their application to fluorescent nano-sensor ‘turn-off’ probe for selective sensing of copper ions

Poushali Das, Sayan Ganguly, Madhuparna Bose, Subhadip Mondal, Amit Kumar Das, Susanta Banerjee, Narayan Chandra Das

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Zero-dimensional fluorescent nanoparticles having specificity as molecular probe appears to be strategically balanced fluorescent nano-probes. In this work, purified lemon extract and L-arginine have been thermally coupled for the extremely acute detection of Cu2 + in aqueous medium. The Cu2 + ions may be captured by the amino groups on the surface of the nano-sensor to form cupric ammine complex resulting in quenched fluorescence via an inner filter effect. Our proposed nano-probe is N-doped carbon dots (NCDs) which are efficiently selective as fluorescent chemosensor due to enormous binding affinity towards Cu2 + in a wide range of concentration (0.05–300 μM) within a few minutes.

Original languageEnglish
Pages (from-to)1456-1464
Number of pages9
JournalMaterials Science and Engineering C
Volume75
DOIs
StatePublished - 1 Jun 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

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