A highly selective and sensitive fluorescent sensor based on Tb-functionalized MOFs to determine arginine in urine: a potential application for the diagnosis of cystinuria.

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ID: 50529
2019
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Abstract
A unique metal-organic framework with the formula [Cd4(H2L)2(L)·H2O]·3H2O (H4L = 5,5'-(1H-1,2,4-triazole-3,5-diyl)diisophthalic acid) was successfully constructed under solvothermal conditions. The frameworks with multiple free Lewis base sites and Lewis acid sites exhibited easily sensitized properties. After the encapsulation of Tb3+ cations, the as-synthesized Tb3+@Cd-MOF demonstrated strong luminescence induced by the efficient energy transfer from the bridging ligands to the Tb3+ cations, with the potential to serve as a chemical sensor. Interestingly, Tb3+@Cd-MOF was proven to be a very promising and highly selective and sensitive luminescent platform for the quantitative detection of arginine, which is the biomarker of cystinuria. The fluorescent probe presented high selectivity to arginine in urine with strong luminescence quenching. Furthermore, a convenient fluorescence-based test paper for the visual detection of arginine in applications was prepared. For the first time, arginine was quantified and monitored in urine by a highly efficient recyclable fluorescent sensor based on Tb3+-functionalized MOF hybrids, which may be a potential candidate for the further development of clinical diagnostic tools.
Reference Key
cui2019athe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Cui, Ruixue;Wan, Yongyan;Ji, Guanfeng;Liu, Zhiliang;
Journal The Analyst
Year 2019
DOI
10.1039/c9an01204d
URL
Keywords
bio-imaging binding mechanism ethyl 5-phenyl-2-(p-tolyl)-2h-1,2,3-triazole-4-carboxylate mercury ion

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