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Updated: Jul 21, 2025
A Colorimetric Method for Measuring Iron Content in Plants
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A Near-Infrared Colorimetric Fluorescent Probe for Ferrous Ion Detection and Imaging
Sheng-Nan Suo1, Yang Tian1, Wei-Lun Tan1
1School of Life Science and Engineering, School of Chemistry, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China.
Abstract:
Based on the N-redox mechanism, a turn-on near-infrared fluorescence probe (SWJT-15) with cyano isophorone as skeleton was designed and synthesized for the detection of ferrous ions (Fe2+). The probe has a lower detection limit (83 nM) and fast response (200 s) to Fe2+ ions. And the probe has unique selectivity and good anti-interference performance against Fe2+ ions compared to other metal ions. Moreover, the probe has been successfully applied to imaging Fe2+ ions in HeLa cells.
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