College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
The University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station A5300, Austin, Texas 78712, USA.
Dalton Trans. 2021 May 4;50(17):5865-5870. doi: 10.1039/d1dt00230a.
One NIR luminescent 14-metal Nd(iii) nanoring (1, molecular size: 1.0 × 2.2 × 2.6 nm) was obtained from a rigid tridentate ligand, which can absorb and transfer light energy to the Nd(iii) ions. 1 shows interesting luminescence sensing activity to antibiotics, in particular to NFAs with high sensitivity due to the inner filter effect. The quenching constants and the limits of detection of 1 to NFAs are 1.05 × 104 M-1-2.33 × 104 M-1 and 3.05 μM-6.75 μM, respectively. The high fluorescence sensitivities of 1 to NFAs are not changed by the existence of other antibiotics. It also exhibits high sensitivity in the luminescent detection of NFAs contained in real antibiotic drugs.
一个近红外发光的 14 金属 Nd(iii)纳米环（1，分子尺寸：1.0×2.2×2.6nm）是由刚性三齿配体得到的，它可以吸收和将光能传递给 Nd(iii)离子。1 对抗生素具有有趣的发光传感活性，特别是由于内滤效应，对 NFAs 具有高灵敏度。1 对 NFAs 的猝灭常数和检测限分别为 1.05×104 M-1-2.33×104 M-1 和 3.05μM-6.75μM。1 对 NFAs 的高荧光灵敏度不受其他抗生素的存在影响。它在检测实际抗生素药物中含有的 NFAs 时也表现出很高的灵敏度。
