POSS-based organic–inorganic hybrid nanomaterials: aggregation-enhanced emission, and highly sensitive and selective detection of nitroaromatic explosives in aqueous media

2016 ◽  
Vol 4 (24) ◽  
pp. 5578-5583 ◽  
Author(s):  
Kai Xiang ◽  
Yanmin Li ◽  
Caihong Xu ◽  
Shuhong Li
Keyword(s):  
Aqueous Media ◽  
Selective Detection ◽  
Hybrid Nanomaterials ◽  
Inorganic Hybrid ◽  
Nitroaromatic Explosives ◽  
Highly Sensitive

Two organic–inorganic hybrid nanomaterials were prepared and were used as chemosensors for the selective detection of nitroaromatic explosives in aqueous media.

Dual mode colorimetric-fluorescent sensor for highly sensitive and selective detection of Mg2+ ion in aqueous media

2020 ◽  
Vol 1213 ◽  
pp. 128156 ◽  
Author(s):  
Behnam Majidi ◽  
Ahmad Amiri ◽  
Alireza Badiei ◽  
Alireza Shayesteh
Keyword(s):  
Fluorescent Sensor ◽  
Aqueous Media ◽  
Selective Detection ◽  
Dual Mode ◽  
Highly Sensitive

scholarly journals Development of a fused imidazo[1,2-a]pyridine based fluorescent probe for Fe3+ and Hg2+ in aqueous media and HeLa cells

RSC Advances ◽  
2019 ◽  
Vol 9 (51) ◽  
pp. 29856-29863 ◽  
Author(s):  
Suman Srivastava ◽  
Neha Thakur ◽  
Ashutosh Singh ◽  
Poonam Shukla ◽  
Vipin Kumar Maikhuri ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Hela Cells ◽  
Fluorescent Sensor ◽  
Aqueous Media ◽  
Selective Detection ◽  
Cascade Cyclization ◽  
Turn On ◽  
Highly Sensitive

A new fluorescent sensor 5 having fused imidazopyridine scaffold has been synthesized via cascade cyclization. It exhibits highly sensitive and selective detection of Fe3+ (‘turn-on’) and Hg2+ (‘turn-off’) in vitro and in HeLa cells.

Highly sensitive and selective detection of mercury (II) based on a zirconium metal-organic framework in aqueous media

2017 ◽  
Vol 253 ◽  
pp. 277-281 ◽  
Author(s):  
Xin Zhang ◽  
Tifeng Xia ◽  
Ke Jiang ◽  
Yuanjing Cui ◽  
Yu Yang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Aqueous Media ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Zirconium Metal ◽  
Organic Framework

Two luminescent Zn(ii) metal–organic frameworks for exceptionally selective detection of picric acid explosives

2015 ◽  
Vol 51 (39) ◽  
pp. 8300-8303 ◽  
Author(s):  
Zhi-Qiang Shi ◽  
Zi-Jian Guo ◽  
He-Gen Zheng
Keyword(s):  
Picric Acid ◽  
Metal Organic Frameworks ◽  
Selective Detection ◽  
Nitroaromatic Explosives ◽  
Highly Sensitive ◽  
Metal Organic

Two luminescent thiophene-containing Zn–MOFs exhibit very highly sensitive and selective detection of picric acid compared to other nitroaromatic explosives.

Highly Sensitive Fluorescent Probe for Selective Detection of Hg2+in DMF Aqueous Media

2007 ◽  
Vol 46 (5) ◽  
pp. 1538-1540 ◽  
Author(s):  
Dayu Wu ◽  
Wei Huang ◽  
Chunying Duan ◽  
Zhihua Lin ◽  
Qingjin Meng
Keyword(s):  
Fluorescent Probe ◽  
Aqueous Media ◽  
Selective Detection ◽  
Highly Sensitive

scholarly journals Highly Sensitive Optical Sensor for Selective Detection of Fluoride Level in Drinking Water: Methodology to Fabrication of Prototype Device

2021 ◽  
Author(s):  
Arka Chatterjee ◽  
Nivedita Pan ◽  
Tuhin Kumar Maji ◽  
Sheik Saleem Pasha ◽  
Soumendra Singh ◽  
...  
Keyword(s):  
Drinking Water ◽  
Steady State ◽  
Detection Limit ◽  
Aqueous Media ◽  
Ion Concentration ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Prototype Device

<p><b>Excess consumption of fluoride through drinking water and its detrimental effects on human health have been a serious global concern. Therefore, frequent monitoring as well as quantitative determination of fluoride ion (F<sup>-</sup>) concentration in aqueous media is of vital importance. Herein, we have developed a facile</b> <b>and</b> <b>highly sensitive spectroscopic technique for selective detection of F<sup>-</sup> in aqueous media using aluminium phthalocyanine chloride (AlPc-Cl) as a sensor. The absorbance as well as steady-state fluorescence intensity of AlPc-Cl has been found to decrease in presence of F<sup>-</sup> which has been used as a marker for the determination of fluoride ion concentration in water. The structural change in AlPc-Cl after addition of F<sup>-</sup> has been thoroughly studied by using <sup>19</sup>F NMR (Nuclear Magnetic Resonance) spectroscopy. Our detailed steady-state as well as time-resolved fluorescence studies reveal that the quenching mechanism is static in nature due to ground state complexation in between F<sup>-</sup> and AlPc-Cl molecules. The response of the sensor is found to be linear over the F<sup>-</sup> concentration regime from 0 to 6 parts per million (ppm) with a detection limit of 0.05 ppm. Additionally, it shows an excellent selectivity as well as an insignificant change in sensitivity even in the presence of interfering iron and aluminium ions. Based on the detailed photophysical study, we have further developed a low cost and portable prototype device which shows an excellent sensitivity with the detection limit of 0.10 ppm. This prototype device has a high prospect for real-time monitoring of fluoride ion concentration especially in remote areas.</b></p>

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