A highly sensitive naked-eye fluorescent probe for trace hydrazine based on ‘C-CN’ bond cleavage

The Analyst ◽  
2018 ◽  
Vol 143 (18) ◽  
pp. 4354-4358 ◽  
Author(s):  
Hai Xu ◽  
Zhen Huang ◽  
Yaqian Li ◽  
Biao Gu ◽  
Zile Zhou ◽  
...  
Keyword(s):  
Detection Limit ◽  
Fluorescent Probe ◽  
Water Samples ◽  
Bond Cleavage ◽  
Eye Detection ◽  
Naked Eye ◽  
Real Water Samples ◽  
Highly Sensitive ◽  
First Time ◽  
Naked Eye Detection

The ‘C–CN’ bond cleavage was applied to the recognition of N2H4 for the first time; the obvious change in color could be used for “naked-eye” detection; the corresponding detection limit was found to be 5.81 × 10−8 M (1.65 ppb); the probe could be applied for N2H4 detection in real water samples.

scholarly journals Quinoline-based fluorescent probe for the detection and monitoring of hypochlorous acid in a rheumatoid arthritis model

RSC Advances ◽  
2021 ◽  
Vol 11 (50) ◽  
pp. 31656-31662
Author(s):  
Xinyi Yang ◽  
Yue Wang ◽  
Zhuye Shang ◽  
Zexi Zhang ◽  
Haijun Chi ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Treatment Response ◽  
Fluorescent Probe ◽  
Water Samples ◽  
Hypochlorous Acid ◽  
Eye Detection ◽  
Arthritis Model ◽  
Naked Eye ◽  
Real Water Samples ◽  
Naked Eye Detection

A quinoline-based fluorescent probe (HQ) has been designed and synthesized for the monitoring of HOCl-mediated treatment response of a rheumatoid arthritis (RA) model and “naked-eye” detection of HOCl in real water samples.

Rapid Colorimetric Discrimination of Cyanide Ions – Mechanistic Insights and Applications

2022 ◽  
Author(s):  
Arunkumar Kathiravan ◽  
Selvaraj Sengottiyan ◽  
Tomasz Puzyn ◽  
Gopinath Pushparathinam ◽  
kanagachidambaresan ramasubramanian ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Samples ◽  
Intramolecular Charge Transfer ◽  
Eye Detection ◽  
Colorimetric Probe ◽  
Naked Eye ◽  
Real Water Samples ◽  
Naked Eye Detection

In this work, we have employed an intramolecular charge transfer-based DMN colorimetric probe for the rapid naked-eye detection of cyanide ions in solution as well as real water samples. The...

scholarly journals Naked-eye Detection of Hg2+ in Practical Applications Using a Highly Selective and Sensitive Fluorescent Probe

2018 ◽  
Vol 34 (12) ◽  
pp. 1411-1417 ◽  
Author(s):  
Yushun YANG ◽  
Dajun ZHENG ◽  
Yunjie XU ◽  
Qixing LIU ◽  
Chen XU ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Eye Detection ◽  
Practical Applications ◽  
Naked Eye ◽  
Naked Eye Detection

Highly Sensitive Colorimetric Naked-Eye Detection of HgII Using a Sacrificial Metal–Organic Framework

2021 ◽  
Vol 60 (17) ◽  
pp. 13588-13595
Author(s):  
Somayeh Tarasi ◽  
Ali Ramazani ◽  
Ali Morsali ◽  
Mao-Lin Hu
Keyword(s):  
Metal Organic Framework ◽  
Eye Detection ◽  
Naked Eye ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Naked Eye Detection ◽  
Organic Framework

scholarly journals A Sensitive Near-Infrared Fluorescent Probe for Detecting Heavy Metal Ag+ in Water Samples

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 247 ◽  
Author(s):  
Yawen Zhang ◽  
Aiying Ye ◽  
Yuewei Yao ◽  
Cheng Yao
Keyword(s):  
Fluorescent Probe ◽  
Water Samples ◽  
Near Infrared ◽  
Color Change ◽  
World Health ◽  
Naked Eye ◽  
Real Water Samples ◽  
Frequent Use ◽  
The World ◽  
Health Organization

Silver is a common catalyst in industrial production, and the frequent use of Ag+ can cause water pollution. Thus, the detection of Ag+ in the environment is necessary to determine the level of pollution from silver. In this work, we designed a new, highly selective near-infrared (NIR) fluorescent probe QCy to detect Ag+. The probe exhibits “turn-off” fluorescence quenching responses at 760 nm towards Ag+ over other relevant cations, with outstanding sensitivity and a low detection limit (0.03 µM), which is considerably lower than the standard of the World Health Organization (WHO) for drinking water (0.9 µM). Meanwhile, QCy showed a very good linearity at a low concentration of Ag+ with a ‘naked eye’ visible color change of solution from blue to red. The probe has been applied successfully for the detection of Ag+ in real water samples.

NanoPOP: Solution-Processable Fluorescent Porous Organic Polymer for Highly Sensitive, Selective, and Fast Naked Eye Detection of Mercury

2019 ◽  
Vol 11 (30) ◽  
pp. 27394-27401 ◽  
Author(s):  
Yankai Li ◽  
Yulong He ◽  
Fangyuan Guo ◽  
Shenping Zhang ◽  
Yanyao Liu ◽  
...  
Keyword(s):  
Organic Polymer ◽  
Eye Detection ◽  
Porous Organic Polymer ◽  
Naked Eye ◽  
Highly Sensitive ◽  
Solution Processable ◽  
Naked Eye Detection

A BODIPY-Based Water-Soluble Fluorescent Probe for Naked Eye Detection of pH

2019 ◽  
Vol 29 (6) ◽  
pp. 1423-1429 ◽  
Author(s):  
Xianjiao Meng ◽  
Duanlin Cao ◽  
Zhiyong Hu ◽  
Zhichun Li ◽  
Xinghua Han ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Water Soluble ◽  
Eye Detection ◽  
Naked Eye ◽  
Naked Eye Detection

Highly sensitive and selective colorimetric naked-eye detection of Cu2+ in aqueous medium using a hydrazone chemosensor

2015 ◽  
Vol 215 ◽  
pp. 241-248 ◽  
Author(s):  
Shengli Hu ◽  
Jingjing Song ◽  
Fang Zhao ◽  
Xianggao Meng ◽  
Gongying Wu
Keyword(s):  
Aqueous Medium ◽  
Eye Detection ◽  
Naked Eye ◽  
Highly Sensitive ◽  
Naked Eye Detection

scholarly journals Fluorescence and Naked-Eye Detection of Pb2+ in Drinking Water Using a Low-Cost Ionophore Based Sensing Scheme

2018 ◽  
Author(s):  
Aron Hakonen ◽  
Niklas Strömberg
Keyword(s):  
Drinking Water ◽  
Tap Water ◽  
Low Cost ◽  
Consumer Products ◽  
Lead Ion ◽  
Eye Detection ◽  
Naked Eye ◽  
Highly Sensitive ◽  
Naked Eye Detection

Drinking water contamination of lead from various environmental sources, leaching consumer products and intrinsic water-pipe infrastructure is still today a matter of great concern. Therefore, new highly sensitive and convenient Pb2+ measurement schemes are necessary, especially for in-situ measurements at a low-cost. Within this work dye/ionophore/Pb2+ co-extraction and effective water phase de-colorization was utilized for highly sensitive lead measurements and sub-ppb naked-eye detection. A low-cost ionophore Benzo-18-Crown-6-ether was used, and a simple test-tube mix and separate procedure was developed. Instrumental detection limits were in the low ppt region (LOD=3, LOQ=10), and naked-eye detection was 500 ppt. Note, however, that this sensing scheme still has improvement potential as concentrations of fluorophore and ionophore were not optimized. Artificial tap-water samples, leached by a standardized method, demonstrated drinking water application. Implications for this method are convenient in-situ lead ion measurements.

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