期刊
ANALYST
卷 146, 期 3, 页码 1032-1039出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0an02075c
关键词
-
资金
- Sichuan Science and Technology Program [2018GZYZF0008]
- Fundamental Research Funds for Central Universities [XDJK2019B001]
The study has successfully constructed orange red-emitting carbon dots with a high quantum yield, demonstrating unique properties and applications in the presence of Fe3+. These CDs have shown potential for detecting Fe3+ in water due to their distinct color changes and fluorescence emission characteristics.
Carbon dots (CDs) have demonstrated considerable potential for use in sensing and bioimaging applications based on their unique intrinsic properties. However, CDs have typically been used as fluorescence sensors, as opposed to indicators, based on their ultraviolet absorption and discoloration performance. In this study, orange red-emitting CDs with a high quantum yield (QY) of 53% were constructed from 2,3-diaminopyridine via solvothermal synthesis. Different from the fluorescence quenching behavior reported previously, the constructed CDs demonstrated a unique character in their ultraviolet absorption and fluorescence emission in the presence of Fe3+. The color of the CD solution varied from mauve to orange following the addition of Fe3+ at concentrations exceeding 1 mu M, which enabled these CDs to be used in the determination of the presence of Fe3+ in lake water. In addition, due to their negligible cytotoxicity, good solubility, and adequate dispersity, an outstanding cellular probe with near-infrared fluorescence was established. Overall, this study presents a unique CD-based sensor, details its fluorescence mechanism, visual colorimetry, and ultraviolet absorption variations, and confirms its applicability in near-infrared cellular imaging and environmental analyses.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据