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An Aptamer-based Sensor for Unchelated GadoliniumIII
Published on: January 9, 2017
Simple C3-symmetric triaminoguanidine-triphenylamine conjugate as an efficient colorimetric sensor for Cu(II) and
Moorthy Mathivanan1, Balamurugan Tharmalingam1, Kailasam Saravana Mani2
1Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India.
Abstract:
The design and construction of novel C3-symmetric triaminoguanidine-triphenylamine conjugate (L) has been demonstrated and it displays positive solvatochromic behaviour with an increase in solvent polarity. The probe L acts as a selective colorimetric sensor for Cu2+ ions over other metal ions. Further, it shows high selective and sensitive detection of Fe3+ ions through turn-on fluorescence response. Moreover, the detection limits for Cu2+ and Fe3+ ions were found to be within the allowable range of the World Health Organisation (30 μM). The real-time application of the probe was showed by paper strip experiments as well as detection of Fe3+ ions in pharmaceutical tablets.
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