Toward rapid and selective detection of hypochlorous acid in pure aqueous media and its application to cell imaging: BODIPY-derived water-soluble macromolecular chemosensor with high sensitivity

2020 ◽  
Vol 172 ◽  
pp. 107858 ◽  
Author(s):  
Ujjal Haldar ◽  
Rini Sharma ◽  
Bhuban Ruidas ◽  
Hyung-il Lee
Keyword(s):  
Cell Imaging ◽  
Hypochlorous Acid ◽  
Aqueous Media ◽  
High Sensitivity ◽  
Water Soluble ◽  
Selective Detection

A water-soluble sulfonate-BODIPY based fluorescent probe for selective detection of HOCl/OCl−in aqueous media

The Analyst ◽  
2014 ◽  
Vol 139 (12) ◽  
pp. 2986-2989 ◽  
Author(s):  
Jiyoung Kim ◽  
Youngmi Kim
Keyword(s):  
Electron Transfer ◽  
Fluorescent Probe ◽  
Fluorescence Intensity ◽  
Photoinduced Electron Transfer ◽  
Aqueous Media ◽  
Water Soluble ◽  
Selective Detection ◽  
Buffer Solution ◽  
Aqueous Buffer ◽  
Aqueous Buffer Solution

A water-soluble sulfonate-BODIPY dye1was developed for the selective detection of HOCl/OCl−in aqueous buffer solution. The probe, which displays extremely weak fluorescence owing to efficient photoinduced electron transfer (PeT) from the pendant catechol donor, responds to HOCl/OCl−through a dramatic enhancement of its fluorescence intensity.

A rhodamine hydrazide-based fluorescent probe for sensitive and selective detection of hypochlorous acid and its application in living cells

2015 ◽  
Vol 7 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Zhen Zhang ◽  
Chengquan Deng ◽  
Liesu Meng ◽  
Yan Zheng ◽  
Xiaomei Yan
Keyword(s):  
Fluorescent Probe ◽  
Hypochlorous Acid ◽  
Aqueous Media ◽  
Living Cells ◽  
Selective Detection

A rhodamine hydrazide-based fluorescent probe was developed for sensitive and selective detection of HOCl in aqueous media and living cells.

scholarly journals Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ming La ◽  
Yuanqiang Hao ◽  
Zhaoyang Wang ◽  
Guo-Cheng Han ◽  
Lingbo Qu
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Limit Of Detection ◽  
Aqueous Media ◽  
Water Soluble ◽  
World Health ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Health Organization

A water-soluble fluorescent probe (C-GGH) was used for the highly sensitive and selective detection of cyanide (CN−) in aqueous media based on the displacement strategy. Due to the presence of the recognition unit GGH (Gly-Gly-His), the probeC-GGH can coordinate with Cu2+and consequently display ON-OFF type fluorescence response. Furthermore, thein situformed nonfluorescentC-GGH-Cu2+complex can act as an effective OFF-ON type fluorescent probe for sensing CN−anion. Due to the strong binding affinity of CN−to Cu2+, CN−can extract Cu2+fromC-GGH-Cu2+complex, leading to the release ofC-GGH and the recovery of fluorescent emission of the system. The probeC-GGH-Cu2+allowed detection of CN−in aqueous solution with a LOD (limit of detection) of 0.017 μmol/L which is much lower than the maximum contaminant level (1.9 μmol/L) for CN−in drinking water set by the WHO (World Health Organization). The probe also displayed excellent specificity for CN−towards other anions, including F−, Cl−, Br−, I−, SCN−,PO43-,N3-,NO3-, AcO−,SO42-, andCO32-.

scholarly journals Synthesis of Fluorescent Carbon Dots as Selective and Sensitive Probes for Cupric Ions and Cell Imaging

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1785 ◽  
Author(s):  
Shu-Wei Huang ◽  
Yu-Feng Lin ◽  
Yu-Xuan Li ◽  
Cho-Chun Hu ◽  
Tai-Chia Chiu
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Water Soluble ◽  
Fluorescence Signal ◽  
Selective Detection ◽  
Cupric Ion ◽  
Sensing System ◽  
Wide Range ◽  
Low Toxicity ◽  
Fluorescent Carbon Dots

A novel sensing system has been designed for the detection of cupric ions. It is based on the quenched fluorescence signal of carbon dots (CDs), which were carbonized from poly(vinylpyrrolidone) (PVP) and L-Cysteine (CYS). Cupric ions interact with the nitrogen and sulfur atoms on surface of the CDs to form an absorbed complex; this results in strong quenching of the fluorescence of the CDs via a fast metal-to-ligand binding affinity. The synthesized water-soluble CDs also exhibited a quantum yield of 7.6%, with favorable photoluminescent properties and good photostability. The fluorescence intensity of the CDs was very stable in high ionic strength (up to 1.0 M NaCl) and over a wide range of pH levels (2.0–12.0). This facile method can therefore develop a sensor that offers reliable, fast, and selective detection of cupric ions with a detection limit down to 0.15 μM and a linear range from 0.5 to 7.0 μM (R2 = 0.980). The CDs were used for cell imaging, observed that they were low toxicity to Tramp C1 cells and exhibited blue and green and red fluorescence under a fluorescence microscope. In summary, the CDs exhibited excellent fluorescence properties, and could be applied to the selective and sensitive detection of cupric ion and multicolor cell imaging.

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