A new class of fluorescent chemosensors based on the β-aminobisphosphonate receptor

A new class of fluorescent chemosensors based on the β-aminobisphosphonate receptor
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基于β-氨基二膦酸受体的新型荧光化学传感器

DOI:
10.1080/10610270802709352
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发表时间:
2009
影响因子:
3.3
通讯作者:
D. Durham
D. Durham
中科院分区:
化学4区
文献类型:
--
作者:
John F. Callan;S. Kamila;Narinder Singh;R. Mulrooney;M. Mackay;Maedhbh C. Cronin;J. Dunn;D. Durham

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研究了一系列具有β-氨基二膦酸盐受体的荧光传感器的光物理性质。这些化合物是根据光致电子转移传感器的荧光团-间隔器-受体格式设计的。传感器显示出不寻常的荧光强度- ph谱,这是由于受体-荧光团h键相互作用导致荧光猝灭。受体的数量和荧光团的性质都对传感器的pH值有影响。此外,化合物1也被证明对Cu2+离子有选择性,在pH 7.4的水中,灵敏度在微摩尔范围内。
The photophysical properties of a range of fluorescent sensors with β-aminobisphosphonate receptors have been studied. The compounds were designed according to the fluorophore–spacer–receptor format of photoinduced electron transfer-based sensors. The sensors displayed unusual fluorescence intensity–pH profiles that were attributed to a receptor–fluorophore H-bonding interaction that resulted in a quenching of fluorescence. The number of receptors and the nature of the fluorophore were both shown to have an effect on the pH profiles of the sensors. In addition, compound 1 was also shown to be selective for Cu2+ ions, in water at pH 7.4 with sensitivity in the micromolar range.