Ratiometric Dual-emission of Rhodamine-B Grafted Carbon Dots for Full-range Solvent Components Detection

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).

Download Full-text

A dual-emission fluorescence sensor constructed by encapsulating double carbon dots in zeolite imidazole frameworks for sensing Pb2+

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2021.126218 ◽

2021 ◽

Vol 615 ◽

pp. 126218

Author(s):

Xiaoqiong Wang ◽

Hao Guo ◽

Ning Wu ◽

Mengni Xu ◽

Longwen Zhang ◽

...

Keyword(s):

Carbon Dots ◽

Fluorescence Sensor ◽

Dual Emission

Download Full-text

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

Nanomaterials ◽

10.3390/nano11051232 ◽

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.

Download Full-text

Tuning Optical Properties of Nitrogen-Doped Carbon Dots Through Fluorescence Resonance Energy Transfer Using Rhodamine B for Ratiometric Sensing of Mercury ion

Analytical Methods ◽

10.1039/d1ay00068c ◽

2021 ◽

Author(s):

Alagan Muthurasu ◽

V GANESH

Keyword(s):

Optical Properties ◽

Energy Transfer ◽

Rhodamine B ◽

Carbon Dots ◽

Resonance Energy Transfer ◽

Resonance Energy ◽

Nitrogen Doped ◽

Physical Chemical ◽

Doped Carbon Dots ◽

Nitrogen Doped Carbon

Carbon dots (CDs) exhibiting fluorescence property are generally derived from carbonaceous materials and possessing ultra small size with various exciting physical, chemical and photo-properties that have been used in many...

Download Full-text

A dual-emission ratiometric fluorescent nanoprobe based on silicon nanoparticles and carbon dots for efficient detection of Cu(II)

CrystEngComm ◽

10.1039/d1ce00166c ◽

2021 ◽

Author(s):

Huiyuan Kou ◽

Shujie Pang ◽

Boyu Yang ◽

Mao Wang ◽

Juan Ding ◽

...

Keyword(s):

Carbon Dots ◽

Silicon Nanoparticles ◽

Dual Emission ◽

Emission Properties ◽

Fluorescent Nanoprobe ◽

Fluorescent Silicon Nanoparticles ◽

Efficient Detection ◽

New Type

In this work, a new type of ratiometric fluorescent nanoprobe with dual-emission properties is designed and constructed. The dual-emission nanoprobe is prepared from fluorescent silicon nanoparticles (Si NPs) and carbon...

Download Full-text