High quantum yield and pH sensitive fluorescence dyes based on coumarin derivatives: fluorescence characteristics and theoretical study

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49221-49227 ◽  
Author(s):  
Chao-jun Hua ◽  
Kan Zhang ◽  
Ming Xin ◽  
Ting Ying ◽  
Jian-rong Gao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Theoretical Study ◽  
Ph Sensitive ◽  
Coumarin Derivatives ◽  
High Quantum Yield ◽  
One Pot ◽  
High Quantum ◽  
Fluorescence Characteristics ◽  
Three Component Reaction ◽  
Fluorescence Dyes

The fluorescence coumarin derivatives were synthesized by an efficient one-pot, three-component reaction in 80–90% yields.

One-pot synthesis of ultrasmall β-NaGdF4 nanoparticles with enhanced upconversion luminescence

2019 ◽  
Vol 7 (29) ◽  
pp. 8898-8904 ◽  
Author(s):  
Chunyan Cheng ◽  
Yueshan Xu ◽  
Songtao Liu ◽  
Yuanyuan Liu ◽  
Xian Wang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Upconversion Luminescence ◽  
Core Shell ◽  
High Quantum Yield ◽  
High Quality ◽  
Shell Nanoparticles ◽  
One Pot ◽  
High Quantum ◽  
One Pot Synthesis ◽  
Core Shell Nanoparticles

High quality β-NaGdYF4:Yb/Er and high quantum yield β-NaGdF4:Yb/Er@β-NaYF4 core shell nanoparticles were synthesized.

One-pot synthesis of carbon dots co-doped with N and S: high quantum yield governed by molecular state and fluorescence detection of Ag+

2019 ◽  
Vol 117 (18) ◽  
pp. 2500-2510 ◽  
Author(s):  
Wei-jie Ren ◽  
Jing-jing Bai ◽  
Yan-liang Zhao ◽  
Yu-long Wang ◽  
Fei Liu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Fluorescence Detection ◽  
Carbon Dots ◽  
Molecular State ◽  
High Quantum Yield ◽  
One Pot ◽  
High Quantum ◽  
One Pot Synthesis ◽  
Co Doped

Novel pH sensitive N-doped carbon dots with both long fluorescence lifetime and high quantum yield

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32319-32322 ◽  
Author(s):  
Cui Zheng ◽  
Xueqin An ◽  
Jun Gong
Keyword(s):  
Quantum Yield ◽  
Surface Structure ◽  
Fluorescence Lifetime ◽  
Carbon Dots ◽  
Ph Sensitive ◽  
Ph Sensitivity ◽  
High Quantum Yield ◽  
High Quantum ◽  
Doped Carbon Dots

The pH sensitivity of CDs is associated with the surface structure.

Facile Synthesis of pH-sensitive Germanium Nanocrystals with High Quantum Yield for Intracellular Acidic Compartment Imaging

Small ◽  
2015 ◽  
Vol 11 (16) ◽  
pp. 1954-1961 ◽  
Author(s):  
Feng Li ◽  
Jing Wang ◽  
Shuqing Sun ◽  
Hai Wang ◽  
Zhiyong Tang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Ph Sensitive ◽  
High Quantum Yield ◽  
Facile Synthesis ◽  
High Quantum ◽  
Germanium Nanocrystals ◽  
Acidic Compartment

High Quantum Yield Fluorescent Chitosan-Based Carbon Dots for the Turn-On-Off-On Detection of Cr(VI) and H2O2

NANO ◽  
2021 ◽  
pp. 2150103
Author(s):  
Yudong Zhang ◽  
Yan Dong ◽  
Haifu Zheng ◽  
Xueyun Yang ◽  
Cheng Yao
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
Blue Emission ◽  
Inner Filter Effect ◽  
Hydrothermal Carbonization ◽  
Reduction Reaction ◽  
High Quantum Yield ◽  
One Pot ◽  
Quenching Effect ◽  
High Quantum

One-pot hydrothermal carbonization approach was employed to synthesize the blue-emission carbon dots derived from chitosan (Cs) and o-phenylenediamine (OPD). The Cs-based carbon dots (Cs–CDs) possessed a certain high quantum yield of 58% and exhibited excellent solubility, stability and fluorescence response in aqueous solutions. The Cs–CDs were designed as a sensor for Cr(VI) and H2O2 determination. The sensing strategy of Cr(VI) was based on the inner filter effect (IFE) and static quenching effect (SQE), showing a good linear correlation ranging from 1 to 130[Formula: see text][Formula: see text]M with a detection limit (LOD) of 0.91[Formula: see text][Formula: see text]M. In addition, the determination for H2O2 was attributed to the elimination of IFE (EIFE) due to the reduction reaction and the detection for H2O2 was in the linear range from 1.0 to 200.0[Formula: see text][Formula: see text]M with LOD of 0.51[Formula: see text][Formula: see text]M. Finally, the proposed designed sensor could be simply applied for detection of Cr(VI) and H2O2 in real samples.

scholarly journals One-pot synthesis of super-bright fluorescent nanogel contrast agents containing a dithiomaleimide fluorophore

2015 ◽  
Vol 2 (1) ◽  
pp. 54-59 ◽  
Author(s):  
Mathew P. Robin ◽  
Jeffery E. Raymond ◽  
Rachel K. O'Reilly
Keyword(s):  
Quantum Yield ◽  
Contrast Agents ◽  
High Quantum Yield ◽  
One Pot ◽  
High Quantum ◽  
One Pot Synthesis

Fluorescent nanogels with radii ranging from 12–17 nm, high quantum yield, concentration-independent emission, and fluorescent lifetimes ofca.25 ns have been synthesised in a one-pot process.

Green preparation of nitrogen-doped carbon dots derived from silkworm chrysalis for cell imaging

2016 ◽  
Vol 4 (3) ◽  
pp. 387-393 ◽  
Author(s):  
Ji Feng ◽  
Wen-Jing Wang ◽  
Xin Hai ◽  
Yong-Liang Yu ◽  
Jian-Hua Wang
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
Cell Imaging ◽  
High Quantum Yield ◽  
One Pot ◽  
Nitrogen Doped ◽  
High Quantum ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Carbon dots (CDs) with a high quantum yield of 46% are prepared using a green one-pot approach under microwaves with silkworm chrysalis which has been used for cell imaging.

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