Dual-Emission Ratiometric Fluorescent Probe based Lanthanide-Functionalized Hydrogen-Bonded Organic Framework for Visual Detection of Methylamine

2021 ◽  
Author(s):  
Yanhong Liu ◽  
Xin Xu ◽  
Haifeng Lu ◽  
Bing Yan
Keyword(s):  
Fluorescent Probe ◽  
Materials Science ◽  
Visual Detection ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Organic Amines ◽  
Ratiometric Fluorescent Probe ◽  
Organic Framework ◽  
Hydrogen Bonded

Developing a highly sensitive and selective visualized volatile organic amines sensor is a challenge in materials science. Here, we report a lanthanide functionalized hydrogen-bonded organic framework (HOF) (named Eu@Tt-TPA) for...

An efficient ratiometric fluorescent probe based on dual-emission fluorescent silica nanoparticles for visual determination of Hg2+

2015 ◽  
Vol 7 (6) ◽  
pp. 2295-2299 ◽  
Author(s):  
Jing Wang ◽  
Meng Ma ◽  
Rongbin Huang ◽  
Ligeng Wang ◽  
Aimin Chen ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Fluorescent Probe ◽  
Visual Detection ◽  
Fluorescein Isothiocyanate ◽  
Dual Emission ◽  
Fluorescent Silica Nanoparticles ◽  
Ratiometric Fluorescent Probe

CdTe/CdS QD-tagged fluorescein isothiocyanate-doped silica nanoparticles were designed as a ratiometric fluorescent probe for visual detection of Hg2+.

A Three-Dimensional Tetraphenylethylene-Based Fluorescence Covalent Organic Framework for Molecular Recognition

2020 ◽  
Author(s):  
Junxia Ren ◽  
Yaozu Liu ◽  
Xin Zhu ◽  
Yangyang Pan ◽  
Yujie Wang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Fluorescence Probe ◽  
Three Dimensional ◽  
Hazardous Substances ◽  
Covalent Organic Framework ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Polycyclic Aromatic ◽  
Better Than ◽  
Organic Framework

<p><a></a><a></a><a></a><a></a><a></a><a></a><a></a><a>The development of highly-sensitive recognition of </a><a></a><a></a><a></a><a></a><a>hazardous </a>chemicals, such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs), is of significant importance because of their widespread social concerns related to environment and human health. Here, we report a three-dimensional (3D) covalent organic framework (COF, termed JUC-555) bearing tetraphenylethylene (TPE) side chains as an aggregation-induced emission (AIE) fluorescence probe for sensitive molecular recognition.<a></a><a> </a>Due to the rotational restriction of TPE rotors in highly interpenetrated framework after inclusion of dimethylformamide (DMF), JUC-555 shows impressive AIE-based strong fluorescence. Meanwhile, owing to the large pore size (11.4 Å) and suitable intermolecular distance of aligned TPE (7.2 Å) in JUC-555, the obtained material demonstrates an excellent performance in the molecular recognition of hazardous chemicals, e.g., nitroaromatic explosives, PAHs, and even thiophene compounds, via a fluorescent quenching mechanism. The quenching constant (<i>K</i><sub>SV</sub>) is two orders of magnitude better than those of other fluorescence-based porous materials reported to date. This research thus opens 3D functionalized COFs as a promising identification tool for environmentally hazardous substances.</p>

Dye encapsulated zinc-based metal-organic framework as a dual-emission sensor for highly sensitive detection of antibiotics

2021 ◽  
Author(s):  
Kang Wang ◽  
Yuhan Duan ◽  
Jiajing Chen ◽  
Haiying Wang ◽  
Hui-Yan Liu
Keyword(s):  
Self Assembly ◽  
Metal Organic Framework ◽  
Sensitive Detection ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Highly Sensitive Detection ◽  
Organic Framework

Self-assembly of two Zn-MOFs, [Zn2L(DMF)3]•H2O•5DMF (1) and [Zn2L(H2O)2]•4H2O•3DMF (2) were achieved with an amide-functionalized tetracarboxylate ligand under similar conditions. Incorporated amide groups make the tetratopic linkers exhibit different configurations, tetrahedron...

Dual-protein visual detection using ratiometric fluorescent probe based on Rox-DNA functionalized CdZnTeS QDs

2019 ◽  
Vol 283 ◽  
pp. 755-760 ◽  
Author(s):  
Guobin Mao ◽  
Wenquan Peng ◽  
Songbai Tian ◽  
Jiao Zheng ◽  
Xinghu Ji ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Visual Detection ◽  
Ratiometric Fluorescent Probe

A near-infrared ratiometric fluorescent probe for rapid and highly sensitive imaging of endogenous hydrogen sulfide in living cells

2013 ◽  
Vol 4 (6) ◽  
pp. 2551 ◽  
Author(s):  
Xu Wang ◽  
Juan Sun ◽  
Weihong Zhang ◽  
Xiaoxu Ma ◽  
Jianzheng Lv ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Fluorescent Probe ◽  
Near Infrared ◽  
Living Cells ◽  
Highly Sensitive ◽  
Ratiometric Fluorescent Probe
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