1H-Pyrazolo[3,4-b]quinoline derivative with the chelating substituent: Synthesis and spectral properties as a fluorescent sensor for cations detection

This paper describes the preparation and spectral properties of a near-infrared fluorophore in which two bis(2-picolyl)amino moieties are axially linked to a silicon(IV) phthalocyanine core. The effects of various metal ions on its absorption and fluorescence spectra have been examined. The results indicate that this compound shows a high sensitivity and moderate selectivity toward Zn2+ ion.

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Simple quinoline-based “turn-on” fluorescent sensor for imaging copper (II) in living cells

Canadian Journal of Chemistry ◽

10.1139/cjc-2014-0011 ◽

2014 ◽

Vol 92 (11) ◽

pp. 1092-1097 ◽

Cited By ~ 10

Author(s):

Chen Zhou ◽

Ning Xiao ◽

Yapeng Li

Keyword(s):

Density Functional ◽

Copper Ions ◽

Fluorescent Sensor ◽

Aqueous Media ◽

Density Functional Theory Calculations ◽

Quinoline Derivative ◽

Electron Transfer Mechanism ◽

Organic Chromophores ◽

Turn On ◽

Fluorescence Turn On

In this work, a novel fluorescent sensor based on a quinoline derivative was designed and synthesized for detecting copper ions in a near-aqueous media. According to its extra-nuclear structure, copper (II) normally exhibits effectiveness for quenching the singlet excited state of organic chromophores through a fast electron transfer mechanism. However, this molecule displayed a strong fluorescence “turn-on” phenomenon upon addition of Cu2+, which was rarely reported in previous research. In addition, density functional theory calculations were adopted to investigate the molecular orbitals as well as the spatial structure. Furthermore, this sensor was applied into living SGC-7901 cells to extend its application in biological systems.

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An OFF–ON–OFF type of pH fluorescent sensor: Benzo[c,d]indole-based dimethine cyanine dye-synthesis, spectral properties and density functional theory studies

Journal of Luminescence ◽

10.1016/j.jlumin.2014.04.014 ◽

2014 ◽

Vol 154 ◽

pp. 124-130 ◽

Cited By ~ 16

Author(s):

Qi Liu ◽

Xiao Hong Su ◽

Lan Ying Wang ◽

Wei Sun ◽

Yi Bo Lei ◽

...

Keyword(s):

Density Functional Theory ◽

Spectral Properties ◽

Density Functional ◽

Fluorescent Sensor ◽

Cyanine Dye ◽

Functional Theory

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A highly selective fluorescent chemosensor based on a quinoline derivative for zinc ions in pure water

RSC Advances ◽

10.1039/c5ra09954d ◽

2015 ◽

Vol 5 (75) ◽

pp. 60796-60803 ◽

Cited By ~ 18

Author(s):

Ye Won Choi ◽

Jae Jun Lee ◽

Cheal Kim

Keyword(s):

Detection Limit ◽

Water Samples ◽

Fluorescent Sensor ◽

Pure Water ◽

Quinoline Derivative ◽

Water Soluble ◽

Fluorescent Chemosensor ◽

Zinc Ions ◽

Low Detection Limit

A water-soluble fluorescent sensor with a low detection limit could be used to detect and quantify Zn2+in water samples.

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Selective fluorescent sensor for Al3+ using a novel quinoline derivative in aqueous solution

Synthetic Metals ◽

10.1016/j.synthmet.2015.09.021 ◽

2015 ◽

Vol 209 ◽

pp. 570-576 ◽

Cited By ~ 24

Author(s):

Jing-can Qin ◽

Zheng-yin Yang

Keyword(s):

Aqueous Solution ◽

Fluorescent Sensor ◽

Quinoline Derivative

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Model of multicomponent narrow-band periodical non-stationary random signal

Information extraction and processing ◽

10.15407/vidbir2020.48.017 ◽

2020 ◽

Vol 2020 (48) ◽

pp. 17-24

Author(s):

I.M. Javorskyj ◽

◽

R.M. Yuzefovych ◽

P.R. Kurapov ◽

◽

...

Keyword(s):

Time Series ◽

Real Time ◽

Hilbert Transform ◽

Spectral Properties ◽

Narrow Band ◽

Analytic Signal ◽

Random Signal ◽

Hilbert Transformation ◽

The Hilbert Transform

The correlation and spectral properties of a multicomponent narrowband periodical non-stationary random signal (PNRS) and its Hilbert transformation are considered. It is shown that multicomponent narrowband PNRS differ from the monocomponent signal. This difference is caused by correlation of the quadratures for the different carrier harmonics. Such features of the analytic signal must be taken into account when we use the Hilbert transform for the analysis of real time series.

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