Dual-emission carbon dots-stabilized copper nanoclusters for ratiometric and visual detection of Cr2O72- ions and Cd2+ ions

2020 ◽  
Vol 386 ◽  
pp. 121654 ◽  
Author(s):  
Hanyu Bai ◽  
Zaiqian Tu ◽  
Yitong Liu ◽  
Qunxi Tai ◽  
Zhongkai Guo ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Visual Detection ◽  
Copper Nanoclusters ◽  
Dual Emission

scholarly journals A dual-emission nano-rod MOF equipped with carbon dots for visual detection of doxycycline and sensitive sensing of MnO4−

RSC Advances ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 4766-4772 ◽  
Author(s):  
Xin Fu ◽  
Rui Lv ◽  
Jian Su ◽  
Hui Li ◽  
Boyi Yang ◽  
...  
Keyword(s):  
Hybrid Material ◽  
Carbon Dots ◽  
Visual Detection ◽  
Test Paper ◽  
Dual Emission

A dual-emission hybrid material could detect doxycycline and MnO4− sensitively. Test paper was regarded initially as a tool for doxycycline visual detection. A lower LOD of MnO4− showed that carbon dots can accelerate quenching speed of MOF(Eu).

A carbon-dot-based dual-emission probe for ultrasensitive visual detection of copper ions

2018 ◽  
Vol 42 (24) ◽  
pp. 19771-19778 ◽  
Author(s):  
Yunsuo Kuang ◽  
Linfeng Chen ◽  
Jiahui Lu ◽  
Xike Tian ◽  
Chao Yang ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Carbon Dots ◽  
Visual Detection ◽  
Copper Ions ◽  
Fluorescent Sensor ◽  
Dual Emission ◽  
Carbon Dot

In this work, we successfully developed an ultrasensitive dual-emission fluorescent sensor (CRB) for instant visual determination of Cu2+ by modifying a Cu-sensitive rhodamine B derivative (RB) onto photostable carboxyl modified carbon dots (CDs).

Synthesis of bifunctional fluorescent nanohybrids of carbon dots–copper nanoclusters via a facile method for Fe3+ and Tb3+ ratiometric detection

2021 ◽  
Author(s):  
Shumin Lin ◽  
Jiangxue Dong ◽  
Bangwen Zhang ◽  
Zeming Yuan ◽  
Chunxiao Lu ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Mechanical Mixing ◽  
Copper Nanoclusters ◽  
Dual Emission ◽  
Ratiometric Detection ◽  
Ratiometric Fluorescent Probe

In this work, a dual–emission ratiometric fluorescent probe of carbon dots–copper nanoclusters (CDs–Cu NCs) nanohybrids with bifunctional feature was successfully assembled through mechanical mixing. In which CDs were synthesized using...

A colorimetric paper sensor for visual detection of mercury ions constructed with dual-emission carbon dots

2018 ◽  
Vol 42 (19) ◽  
pp. 15671-15677 ◽  
Author(s):  
Yifan Wang ◽  
Liang Yang ◽  
Bianhua Liu ◽  
Shaoming Yu ◽  
Changlong Jiang
Keyword(s):  
Carbon Dots ◽  
Visual Detection ◽  
Mercury Ions ◽  
Ratiometric Fluorescence ◽  
Blue Fluorescence ◽  
Internal Reference ◽  
Dual Emission ◽  
Paper Sensor ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A ratiometric fluorescence nanosensor has been developed by mixing blue fluorescent carbon dots and red fluorescent carbon dots, where the blue fluorescence can be selectively quenched by Hg2+, while the red fluorescence is an internal reference.

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

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1232
Author(s):  
Jiaqing Guo ◽  
Aikun Liu ◽  
Yutian Zeng ◽  
Haojie Cai ◽  
Shuai Ye ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Background Noise ◽  
Good Recovery ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Simple Method ◽  
Real Samples ◽  
Nitrogen Doped ◽  
Probe Concentration ◽  
Ratiometric Probe

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 μM) and ClO- (0–75 μM). 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.

Engineering Amino-mediated Copper Nanoclusters with Dual Emission and Assembly-to-monodispersion Switching by pH-Triggered Surface Modulation

2021 ◽  
Author(s):  
Bingyan Han ◽  
Qifang Yan ◽  
Ze Xin ◽  
Qingdong Liu ◽  
Dan Li ◽  
...  
Keyword(s):  
Copper Nanoclusters ◽  
Dual Emission ◽  
Surface Modulation

Herein we report L-cysteine (Cys)-mediated copper nanoclusters (CuNCs) with assembly-to-monodispersion switching by pH-triggered surface modulation. Aggregated red emissive (R)-CuNCs@Cys at pH=3 turn to monodispersed blue emissive (B)-CuNCs@Cys at pH=10, which...

Sign in / Sign up

Export Citation Format

Share Document