Dual-mode detection sensor based on nitrogen-doped carbon dots from pine needles for the determination of Fe3+ and folic acid

被引：12

作者：

Wang, Bingying ^{[1
]}

Guo, Lijun ^{[1
]}

Yan, Xiangtong ^{[1
]}

Hou, Faju ^{[1
]}

Zhong, Linlin ^{[1
]}

Xu, Hui ^{[2
]}

机构：

[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China

[2] Huzhou Coll, Dept Chem Mat, Huzhou 313000, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2023年 / 285卷

关键词：

Nitrogen-doped carbon dots (N-CDs); Dual-mode detection sensor; Folic acid (FA); Fe3+; QUANTUM DOTS; NITRIDE; FOLATE; SULFUR; CU2+;

D O I：

10.1016/j.saa.2022.121891

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this study, nitrogen-doped carbon dots (N-CDs) from pine needles were obtained by one-step hydrothermal synthesis without any chemical reagents. The fluorescence quenching and absorbance enhancement of N-CDs occurred when Fe3+ and folic acid (FA) were added. Based on this, the dual-mode detection sensor by fluorescence and ultraviolet-visible (UV-Vis) spectrophotometry for the determination of Fe3+ and FA was established. Detected by the dual-mode detection sensor under the optimized condition, the linear range of Fe3+ was 0.1-540 mu M and FA was 0.1-165 mu M. At the same time, the two inputs "NOR" and "OR" logic gates are constructed successfully according to the dual-mode sensor signals. The proposed dual-mode detection sensor is simple, efficient and stable; it can be applied to determinate Fe3+ and FA in practical samples successfully and the results are satisfactory.

引用

页数：8

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