Fluorescent organic nanoparticles (FONs) of rhodamine-appended dipodal derivative: highly sensitive fluorescent sensor for the detection of Hg2+ in aqueous media

Vimal K. Bhardwaj; Hemant Sharma; Navneet Kaur; Narinder Singh

doi:10.1039/C3NJ01086D

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Fluorescent organic nanoparticles (FONs) of rhodamine-appended dipodal derivative: highly sensitive fluorescent sensor for the detection of Hg²⁺ in aqueous media†

Vimal K. Bhardwaj,*^a Hemant Sharma,^a Navneet Kaur^b and Narinder Singh*^a

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar, Panjab, India
E-mail: nsingh@iitrpr.ac.in, vimalb@iitrpr.ac.in
Tel: +91-1881242176

^b Centre for Nanoscience and Nanotechnology (UIEAST), Panjab University, Chandigarh, India
Tel: +91-1722534464

Abstract

A rhodamine-based receptor consisting of a dipodal framework and a pseudo-cavity compatible with cation binding has exhibited fluorescence recognition of Hg²⁺ with a detection limit of 0.1 nm in a buffered aqueous medium. The Hg²⁺ coordination in the receptor pseudocavity resulted in the enhancement of fluorescence intensity due to spirolactam ring-opening.

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Article information

DOI: https://doi.org/10.1039/C3NJ01086D
Article type: Paper
Submitted: 17 Sep 2013
Accepted: 19 Sep 2013
First published: 20 Sep 2013

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New J. Chem., 2013,37, 4192-4198

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Fluorescent organic nanoparticles (FONs) of rhodamine-appended dipodal derivative: highly sensitive fluorescent sensor for the detection of Hg²⁺ in aqueous media

V. K. Bhardwaj, H. Sharma, N. Kaur and N. Singh, New J. Chem., 2013, 37, 4192 DOI: 10.1039/C3NJ01086D

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