In this paper, a photoluminescent turn off-on switch probe β-cyclodextrin-hydroxyquinoline (β-CD-HQ) was efficiently applied for detection and measurement of Cd2+ ions and detection of tetracycline. The proposed assay has shown an excellent selective fluorescence response toward Cd2+ ions over other ions like Al3+, Pb2+, Zn2+, Co2+, K+, Na+ and Sr2+. The fluorescence emission intensity of the probe is slightly affected by competing ions. In optimum pH value, 4, the limit of detection and linear concentration range were 0.05 nM and 0.1-1.5 nM, respectively. Additionally, the extraordinary output signal of β-CD-HQ was utilized to investigate the logic behavior of β-CD-HQ in the aqueous media. Accordingly, a solid support logic circuit was made by producing the fluorescence output signal under the stimulation of Cd2+ ions and tetracycline as inputs.

中文翻译：

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荧光关闭探针（β-环糊精-羟基喹啉），用于监测Cd ₂₊离子和四环素。

本文将光致发光的开关探针β-环糊精-羟基喹啉（β-CD-HQ）有效地用于Cd2 +离子的检测和测量以及四环素的检测。与其他离子（如Al3 +，Pb2 +，Zn2 +，Co2 +，K +，Na +和Sr2 +）相比，拟议的测定方法显示出对Cd2 +离子的出色的选择性荧光响应。探针的荧光发射强度会受到竞争离子的轻微影响。在最佳pH值为4时，检测极限和线性浓度范围分别为0.05 nM和0.1-1.5 nM。另外，利用β-CD-HQ的非凡输出信号来研究β-CD-HQ在水性介质中的逻辑行为。因此，通过在Cd 2+离子和四环素作为输入的刺激下产生荧光输出信号来制造固体支持逻辑电路。