Noval Dual-Emission Fluorescence Carbon Dots as a Ratiometric Probe for Cu2+ and ClO- Detection

被引：17

作者：

Guo, Jiaqing ^{[1
]}

Liu, Aikun ^{[1
]}

Zeng, Yutian ^{[1
]}

Cai, Haojie ^{[1
]}

Ye, Shuai ^{[1
]}

Li, Hao ^{[1
]}

Yan, Wei ^{[1
]}

Zhou, Feifan ^{[1
]}

Song, Jun ^{[1
]}

Qu, Junle ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Ctr Biomed Opt & Photon CBOP, Shenzhen 518060, Peoples R China

[2] Natl Res Nucl Univ, MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia

来源：

NANOMATERIALS | 2021年 / 11卷 / 05期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

carbon dots; ratiometric fluorescence; ions detection; ANTHRAX BIOMARKER; QUANTUM DOTS; ROOM-TEMPERATURE; COPPER-ION; SENSOR; NANOPARTICLES; ACID; CRYSTALLINITY; ENHANCEMENT; SIZE;

D O I：

10.3390/nano11051232

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of carbon dots (CDs) with dual emission based on ratiometric fluorescence has been attracting attention in recent times for more accurate ion detection since they help avoid interference from background noise, probe concentration, and complexity. Herein, novel dual-emission nitrogen-doped CDs (NCDs) were prepared by a simple method for Cu2+ and ClO- detection. The NCDs showed excellent anti-interference ability and selectivity for different emissions. In addition, a good linear relationship was observed between the fluorescence intensity (FI) of the NCD solutions in different emissions with Cu2+ (0-90 mu M) and ClO- (0-75 mu M). The limits of both Cu2+ detection and ClO- were very low, at 17.7 and 11.6 nM, respectively. The NCDs developed herein also showed a good recovery rate in water for Cu2+ and ClO- detection. Hence, they are expected to have a more extensive application prospect in real samples.

引用

页数：10

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