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.

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

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.

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.

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.

scholarly journals Co-reductive fabrication of carbon nanodots with high quantum yield for bioimaging of bacteria

2018 ◽  
Vol 9 ◽  
pp. 137-145 ◽  
Author(s):  
Jiajun Wang ◽  
Xia Liu ◽  
Gesmi Milcovich ◽  
Tzu-Yu Chen ◽  
Edel Durack ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Photoelectron Spectroscopy ◽  
Chemical Reduction ◽  
Carbon Nanodots ◽  
Synthetic Approach ◽  
High Quantum Yield ◽  
One Pot ◽  
Uniform Size ◽  
High Quantum ◽  
Low Cytotoxicity

A simple and straightforward synthetic approach for carbon nanodots (C-dots) is proposed. The strategy is based on a one-step hydrothermal chemical reduction with thiourea and urea, leading to high quantum yield C-dots. The obtained C-dots are well-dispersed with a uniform size and a graphite-like structure. A synergistic reduction mechanism was investigated using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The findings show that using both thiourea and urea during the one-pot synthesis enhances the luminescence of the generated C-dots. Moreover, the prepared C-dots have a high distribution of functional groups on their surface. In this work, C-dots proved to be a suitable nanomaterial for imaging of bacteria and exhibit potential for application in bioimaging thanks to their low cytotoxicity.

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