Jump to main content
Jump to site search

Issue 11, 2018
Previous Article Next Article

Detection and discrimination of Zn2+ and Hg2+ using a single molecular fluorescent probe

Author affiliations

Abstract

A new fluorescent probe (SAPH) has been introduced which shows specific sensing towards Zn2+ and Hg2+ at two different wavelength maxima at physiological pH. The probe shows a brilliant ratiometric red shift in emission spectra upon addition of Zn2+ at 678 nm while upon addition of Hg2+ it shows a turn-on ratiometric emission enhancement with a red shift at 647 nm. Job's plot confirms the 1 : 1 complexation for both Zn2+ and Hg2+. The binding constants have been calculated using the Benesi–Hildebrand equation and found to be 3.03 × 105 M−1 and 6.05 × 104 M−1 respectively for SAPH–Zn2+ and SAPH–Hg2+. DFT and TDDFT studies are conducted using the probe to establish a similarity between theoretical and experimental outcomes.

Graphical abstract: Detection and discrimination of Zn2+ and Hg2+ using a single molecular fluorescent probe

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Mar 2018, accepted on 13 Apr 2018 and first published on 14 Apr 2018


Article type: Paper
DOI: 10.1039/C8NJ01212A
Citation: New J. Chem., 2018,42, 8646-8652
  •   Request permissions

    Detection and discrimination of Zn2+ and Hg2+ using a single molecular fluorescent probe

    S. Gharami, K. Aich, L. Patra and T. K. Mondal, New J. Chem., 2018, 42, 8646
    DOI: 10.1039/C8NJ01212A

Search articles by author

Spotlight

Advertisements