基于喹啉衍生物的超分子凝胶，用于荧光 "关闭 "检测 Fe3+ 和 Cu2+

IF 2.4 3区化学 Q3 CHEMISTRY, ANALYTICAL

Methods and Applications in Fluorescence Pub Date : 2024-05-02 DOI:10.1088/2050-6120/ad4232

Shuaishuai Fu, Shang Wu, Jutao Liu, Jiajia Wang, Shuo Tian, Guangwu Zhang, Fenping Yin, Yuzhi Sun, Ping Zhang and Quanlu Yang

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引用次数: 0

摘要

在这项研究中，我们合成并构建了一种新型凝胶剂（名为 QN），它将喹啉和萘结合在一起，在 N，N-二甲基甲酰胺（DMF）中自组装形成稳定的超分子凝胶（名为 OQN）。在紫外光下，凝胶 OQN 发出极其明亮的黄色荧光。凝胶 OQN 对 Fe3+ 和 Cu2+ 均表现出优异的传感性能，具有荧光 "熄灭 "检测机制，最低检测限分别为 7.58 × 10-8 M 和 1.51 × 10-8 M。扫描电子显微镜（SEM）、透射电子显微镜（TEM）、傅立叶变换红外光谱（FTIR）、X 射线粉末衍射（XRD）、流变学测量、X 射线光电子能谱（XPS）和荧光光谱用于表征凝胶 OQN。所制备的 OQN 离子响应膜是一种出色的荧光书写材料。

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A quinoline derivative-based supramolecular gel for fluorescence ‘turn-off’ detection of Fe3+ and Cu2+

In this research, we synthesized and constructed a novel gelator (named QN) combining quinoline and naphthalene that self-assembled in N, N-dimethylformamide (DMF) to form a stable supramolecular gel (named OQN). Under UV light, gel OQN exhibited extremely bright yellow fluorescence. The gel OQN showed excellent sensing performance for both Fe3+ and Cu2+, with a fluorescence ‘turn-off’ detection mechanism and the lowest detection limit of 7.58 × 10−8 M and 1.51 × 10−8 M, respectively. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectra, x-ray powder diffraction (XRD), rheological measurements, x-ray photoelectron spectroscopy (XPS), and fluorescence spectroscopy were used to characterize the gel OQN. The OQN ion-responsive membrane created is an excellent fluorescent writing material.

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来源期刊

Methods and Applications in Fluorescence CHEMISTRY, ANALYTICALCHEMISTRY, PHYSICAL&n-CHEMISTRY, PHYSICAL

CiteScore

6.20

自引率

3.10%

发文量

期刊介绍： Methods and Applications in Fluorescence focuses on new developments in fluorescence spectroscopy, imaging, microscopy, fluorescent probes, labels and (nano)materials. It will feature both methods and advanced (bio)applications and accepts original research articles, reviews and technical notes.