Thioacetamide-derived nitrogen and sulfur co-doped carbon nanoparticles used for label-free detection of copper(II) ions and bioimaging applications

Sadhanala, Hari Krishna and Maddegalla, Ananya and Nanda, K K (2017) Thioacetamide-derived nitrogen and sulfur co-doped carbon nanoparticles used for label-free detection of copper(II) ions and bioimaging applications. In: NEW JOURNAL OF CHEMISTRY, 41 (22). pp. 13742-13746.

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Abstract

Heteroatom-doped carbon nanoparticles have drawn considerable attention due to their promising applications extending from optoelectronics to biotechnology. Here, we prepared both nitrogen and sulfur co-doped carbon nanoparticles (NS-CNPs) from a single precursor, thioacetamide, using a hydrothermal method and showed that an ultra-low amount of copper ions can be detected through steady state photoluminescence of the NS-CNPs. The fluorescence intensity varies with the concentration of copper ions, and thus can be potentially used for quantification. The limit of detection (LOD) for copper ions is found to be 14 nM in the linear dynamic range from 0.02 to 0.1 mu M. Finally, we have employed NS-CNPs for the detection of Cu2+ ions in yeast cells.

Item Type:	Journal Article
Publication:	NEW JOURNAL OF CHEMISTRY
Additional Information:	Copy right for this article belongs to the ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	01 Dec 2017 06:58
Last Modified:	01 Dec 2017 06:58
URI:	http://eprints.iisc.ac.in/id/eprint/58337

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