Fluorescence Quenching of a Conjugated Polymer by Synergistic Amine-Carboxylic Acid and π–π Interactions for Selective Detection of Aromatic Amines in Aqueous Solution

ACS Sensors ◽  
2017 ◽  
Vol 2 (6) ◽  
pp. 842-847 ◽  
Author(s):  
Yi-Jia Zhao ◽  
Kesong Miao ◽  
Zhengtao Zhu ◽  
Li-Juan Fan
Keyword(s):  
Aqueous Solution ◽  
Carboxylic Acid ◽  
Fluorescence Quenching ◽  
Conjugated Polymer ◽  
Aromatic Amines ◽  
Selective Detection ◽  
Π Interactions

Detection of glutaraldehyde in aqueous environments based on fluorescence quenching of a conjugated polymer with pendant protonated primary amino groups

2017 ◽  
Vol 5 (20) ◽  
pp. 5010-5017 ◽  
Author(s):  
Kesong Miao ◽  
Heng Zhang ◽  
Lijuan Sun ◽  
Zhengtao Zhu ◽  
Li-Juan Fan
Keyword(s):  
Fluorescence Quenching ◽  
Conjugated Polymer ◽  
Selective Detection ◽  
Amino Groups ◽  
Conjugated Polyelectrolyte ◽  
Aqueous Environments ◽  
Primary Amino

A new conjugated polyelectrolyte was synthesized and demonstrated to be very effective in selective detection of glutaraldehyde in aqueous environments.

Inner Filter Effect Based Selective Detection of Nitroexplosive-Picric Acid in Aqueous Solution and Solid Support Using Conjugated Polymer

ACS Sensors ◽  
2016 ◽  
Vol 1 (8) ◽  
pp. 1070-1077 ◽  
Author(s):  
Arvin Sain Tanwar ◽  
Sameer Hussain ◽  
Akhtar Hussain Malik ◽  
Mohammad Adil Afroz ◽  
Parameswar Krishnan Iyer
Keyword(s):  
Aqueous Solution ◽  
Conjugated Polymer ◽  
Picric Acid ◽  
Inner Filter Effect ◽  
Solid Support ◽  
Selective Detection ◽  
Filter Effect

Highly efficient detection of hydrogen peroxide in solution and in the vapor phase via fluorescence quenching

2015 ◽  
Vol 51 (32) ◽  
pp. 7061-7064 ◽  
Author(s):  
Patrick Marks ◽  
Bhasker Radaram ◽  
Mindy Levine ◽  
Igor A. Levitsky
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Fluorescence Quenching ◽  
Vapor Phase ◽  
Conjugated Polymer ◽  
Sensitive Detection ◽  
Titanium Complex ◽  
Highly Efficient ◽  
Efficient Detection

Herein we report the highly efficient and sensitive detection of hydrogen peroxide in both aqueous solution and in the vapor phaseviafluorescence quenching (turn-off mechanism) of the amplified fluorescent conjugated polymer–titanium complex induced by hydrogen peroxide.

Water-dispersible hyperbranched conjugated polymer nanoparticles with sulfonate terminal groups for amplified fluorescence sensing of trace TNT in aqueous solution

2017 ◽  
Vol 1 (9) ◽  
pp. 1875-1880 ◽  
Author(s):  
Xiaofu Wu ◽  
Hao Hang ◽  
Hua Li ◽  
Yonghong Chen ◽  
Hui Tong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Quenching ◽  
Conjugated Polymer ◽  
Polymer Nanoparticles ◽  
Fluorescence Sensing ◽  
Water Dispersible ◽  
Conjugated Polymer Nanoparticles

The efficient encapsulation of TNT by numerous hydrophobic cavities inside the hyperbranched conjugated polymer core allows for amplified fluorescence quenching detection of TNT down to 0.8 ppb.

scholarly journals A Novel Thiosemicarbazide-Based Fluorescent Chemosensor for Hypochlorite in Near-Perfect Aqueous Solution and Zebrafish

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 65
Author(s):  
Minji Lee ◽  
Donghwan Choe ◽  
Soyoung Park ◽  
Hyeongjin Kim ◽  
Soomin Jeong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Reactive Oxygen Species ◽  
Aqueous Solution ◽  
Fluorescence Quenching ◽  
Limit Of Detection ◽  
Fluorescent Sensor ◽  
Ionization Mass ◽  
Oxygen Species ◽  
Marked Selectivity ◽  
Uv Visible

A novel thiosemicarbazide-based fluorescent sensor (AFC) was developed. It was successfully applied to detect hypochlorite (ClO−) with fluorescence quenching in bis-tris buffer. The limit of detection of AFC for ClO− was analyzed to be 58.7 μM. Importantly, AFC could be employed as an efficient and practical fluorescent sensor for ClO− in water sample and zebrafish. Moreover, AFC showed a marked selectivity to ClO− over varied competitive analytes with reactive oxygen species. The detection process of AFC to ClO− was illustrated by UV–visible and fluorescent spectroscopy and electrospray ionization–mass spectrometry (ESI–MS).

Unusual π-π interactions directed by [{(C6H6)Ru}2W8O30(OH)2]6– hybrid anion

CrystEngComm ◽  
2021 ◽  
Author(s):  
Anna A Mukhacheva ◽  
Vladislav Komarov ◽  
Vasily Kokovkin ◽  
Alexander S. Novikov ◽  
Pavel A Abramov ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Building Block ◽  
Π Interactions

The [{(C6H6)Ru}2W8O30(OH)2]6– hybrid (organometallic-POM) anion was used as a pH-tunable building block to create special conditions for realizing π-π interactions in the crystal structure. Changing pH of aqueous solution of...

Enhancing Insulated Conjugated Polymer Fluorescence Quenching by Incorporating Dithia[3.3]paracyclophanes

2021 ◽  
Vol 54 (7) ◽  
pp. 3112-3119
Author(s):  
Ryan Lillis ◽  
Maximillian R. Thomas ◽  
Manikandan Mohanan ◽  
Nagarjuna Gavvalapalli
Keyword(s):  
Fluorescence Quenching ◽  
Conjugated Polymer

Microwave-assisted synthesis of BSA-stabilised gold nanoclusters for the sensitive and selective detection of lead(ii) and melamine in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 79020-79027 ◽  
Author(s):  
Che-Yu Lee ◽  
Nai-Yueh Hsu ◽  
Mei-Yao Wu ◽  
Yang-Wei Lin
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoclusters ◽  
Microwave Assisted Synthesis ◽  
Selective Detection ◽  
Microwave Assisted ◽  
Turn On

MW-assisted synthesis of fluorescent BSA-AuNCs for the turn-off sensing of Pb(ii) and turn-on sensing of melamine.

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