Facile synthesis of red dual-emissive carbon dots for ratiometric fluorescence sensing and cellular imaging

Nanoscale ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 5494-5500 ◽  
Author(s):  
Yang Hu ◽  
Zhengbiao Yang ◽  
Xuan Lu ◽  
Jiazhuang Guo ◽  
Rui Cheng ◽  
...  
Keyword(s):  
Hydrothermal Treatment ◽  
Carbon Dots ◽  
Cellular Imaging ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Facile Synthesis ◽  
Dual Emission ◽  
Ratiometric Fluorescence Sensing

Carbon dots synthesized by the hydrothermal treatment of dicyandiamide and o-phenylenediamine in dilute H2SO4 exhibit efficient excitation-independent red dual-emission useful for ratiometric fluorescence sensing and cellular imaging.

scholarly journals Novel single excitation dual-emission carbon dots for colorimetric and ratiometric fluorescent dual mode detection of Cu2+ and Al3+ ions

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38568-38575 ◽  
Author(s):  
Jinping Song ◽  
Qi Ma ◽  
Yequn Liu ◽  
Yong Guo ◽  
Feng Feng ◽  
...  
Keyword(s):  
Interference Effect ◽  
Simultaneous Detection ◽  
Blue Emission ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Dual Mode ◽  
Dual Emission ◽  
Red Emission ◽  
Mode Detection ◽  
Ratiometric Fluorescence Sensing

D-CDs with strong red emission and weak blue emission as an effective colorimetric and ratiometric fluorescence sensing probe are employed to realize the simultaneous detection of Cu2+ and Al3+ ions without any interference effect.

Ratiometric fluorescence sensing and cellular imaging of Cu2+ by a new water soluble trehalose-naphthalimide based chemosensor

RSC Advances ◽  
2013 ◽  
Vol 3 (46) ◽  
pp. 24288 ◽  
Author(s):  
Giuseppa Ida Grasso ◽  
Salvatore Gentile ◽  
Maria Laura Giuffrida ◽  
Cristina Satriano ◽  
Carmelo Sgarlata ◽  
...  
Keyword(s):  
Cellular Imaging ◽  
Water Soluble ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Ratiometric Fluorescence Sensing

Folded short azapeptide for conformation switching-based fluorescence sensing

2017 ◽  
Vol 53 (98) ◽  
pp. 13137-13140 ◽  
Author(s):  
Yuan Yuan ◽  
Xiao-Sheng Yan ◽  
Xiao-Rui Li ◽  
Jin-Lian Cao ◽  
Zhao Li ◽  
...  
Keyword(s):  
Fluorescent Sensors ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Turn Structure ◽  
Ratiometric Fluorescence Sensing

Dipeptide-based amidothiourea (azapeptides) bearing folded β-turn structures were employed to build beacon-like fluorescent sensors signalled by pyrene exciplex or excimer dual emission to allow highly sensitive ratiometric fluorescence sensing of an anion able to bind to the structural moiety placed within the turn structure.

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.

Carbon dots doped lanthanide coordination polymer nanocomposite as ratiometric fluorescent probe for the sensitive detection of alkaline phosphatase activity

The Analyst ◽  
2021 ◽  
Author(s):  
Weidi Sun ◽  
Xue Han ◽  
Fengli Qu ◽  
Rong-Mei Kong ◽  
Zilong Zhao
Keyword(s):  
Alkaline Phosphatase ◽  
Coordination Polymer ◽  
Polymer Nanocomposite ◽  
Activity Analysis ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Lanthanide Coordination Polymer ◽  
Stimulus Responsive ◽  
Ratiometric Fluorescence Sensing ◽  
Ratiometric Fluorescent Probe

Developing sensitive methods for alkaline phosphatase (ALP) activity analysis is an important analytical topic. Based on the stimulus-responsive lanthanide coordination polymer, a simple ratiometric fluorescence sensing strategy was proposed to...

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