Fluorescent Calix[4]arene-Carbazole-Containing Polymers as Sensors for Nitroaromatic Explosives
نویسندگان
چکیده
منابع مشابه
Detection of nitroaromatic explosives based on photoluminescent polymers containing metalloles.
The synthesis, spectroscopic characterization, and fluorescence quenching efficiency of polymers and copolymers containing tetraphenylsilole or tetraphenylgermole with Si-Si, Ge-Ge, and Si-Ge backbones are reported. Poly(tetraphenyl)germole, 2, was synthesized from the reduction of dichloro(tetraphenyl)germole with 2 equivs of Li. Silole-germole alternating copolymer 3 was synthesized by coupli...
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Fast and sensitive detection of nitro-aromatic explosives is of vital importance for finding hidden explosives in airport luggage or mails, screening of personnel, and detection of buried landmines [1-3]. A crucial example is the detection of trace amount of 2,4,6-trinitrotoluene (TNT), which is a typical nitro-aromatic explosives [ 4-8]. Various TNT detection methods are currently available, s...
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Exposed surfaces of organic-free colloidal semiconductor nanocrystals act as generic luminescent sensors for multiple analytes. S(2-) capped CdSe/CdSeS/CdS core/gradient-shell/shell nanocrystals are turn-on sensors for Cd(2+) ions (110 pM) in an aqueous medium with physiological pH 7.4. A similar organic-free semiconductor nanocrystal shows luminescence turn-off sensing for 2,4,6-trinitrophenol...
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A fl uorescence sensor array is being developed to detect explosives at ambient temperature and atmospheric conditions. The sensor platform uses a multilayer substrate that serves to amplify the emission signal by more than three orders of magnitude, improving the sensor response accordingly. Studies to understand the mechanism of the signal amplifi cation are being undertaken so that the senso...
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2020
ISSN: 2227-9040
DOI: 10.3390/chemosensors8040128