一种用于铁和磷酸根阴离子的荧光探针及其应用。
A relay identification fluorescence probe for Fe and phosphate anion and its applications.
机构信息
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China.
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Feb 15;191:172-179. doi: 10.1016/j.saa.2017.10.018. Epub 2017 Oct 9.
A simple relay identification fluorescence probe for Fe and phosphate anion with "on-off-on" switching was designed and synthesized based on the phenylthiazole and biphenylcarbonitrile. Probe 1 displayed highly selective and sensitive recognition to Fe in HEPES aqueous buffer (EtOH/HO=2:8, v/v, pH=7.4) solutions. The optimized structures and HOMO and LUMO of probe 1 and [1-Fe] complex were obtained by the density functional theory (DFT) calculations with B3LYP as the exchange and correlation functional using a suite of Gaussian 09 programs. The [1-Fe] complex solution also showed a high selectivity toward PO. The lower limits of detection of probe 1 to Fe and [1-Fe] complex to PO were estimated to 1.09×10M and 1.86×10M. Besides, the probe 1 also was used to detected the target ions in real water sample and living cells successfully.
基于苯并噻唑和联苯甲腈，设计并合成了一种简单的用于 Fe 和磷酸根阴离子的“开-关-开”切换的中继识别荧光探针。探针 1 在 HEPES 水性缓冲液（EtOH/HO=2:8，v/v，pH=7.4）溶液中对 Fe 表现出高度选择性和灵敏的识别。通过密度泛函理论（DFT）计算，使用高斯 09 程序套件，以 B3LYP 作为交换和相关功能，获得了探针 1 和[1-Fe]配合物的优化结构以及 HOMO 和 LUMO。[1-Fe]配合物溶液对 PO 也表现出高选择性。探针 1 对 Fe 和[1-Fe]配合物对 PO 的检测下限分别估计为 1.09×10M 和 1.86×10M。此外，探针 1 还成功用于检测实际水样和活细胞中的靶离子。
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