A thiophene-rhodamine dyad as fluorescence probe for ferric ion and its application in living cells imaging
作者： Kun-Peng Wang , Wen-Jun Zheng , Yang Lei , Si-Jie Zhang , Qi Zhang
DOI: 10.1016/J.JLUMIN.2019.01.017
关键词:
摘要: Abstract A thiophene-rhodamine dyad (BYY) was easily synthesized as a fluorescence probe from 2-thiopheneacetic acid and N-(rhodamine-B)lactam-ethylenediamine. The showed high response speed sensitivity toward Fe3+ in ethanol/water (2/3, v/v, pH = 7.2), the limit of detection low 10−7 M. From Job's plot, mass spectrum, 1H NMR spectra theoretical calculation, 1:2 complex ratio Fe3+-probe obtained mechanism determined. Significantly, reversible binding BYY to achieved through strong affinity Na4P2O7, well antijamming abilities presence common metal ions. Moreover, cell-permeable could sensitively living cells with satisfying resolution.
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