Supersensitive detection of explosives by recyclable AIE luminogen-functionalized mesoporous materials
نویسندگان
چکیده
منابع مشابه
Supersensitive detection of explosives by recyclable AIE luminogen-functionalized mesoporous materials.
Mesoporous SBA-15 functionalized with aggregation-induced emission (AIE) luminogens serves as an efficient and recyclable fluorescent sensor for the detection of picric acid (PA), with a quenching constant of up to 2.5 × 10(5) M(-1) in a water solution, presenting a new model for the supersensitive detection of explosives.
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http://nano.tau.ac.il In the last decade there has been a great increase in the development of trace and ultra-trace explosive detection, mainly due to the globalization of terrorist acts, and the reclamation of contaminated land previously used for military purposes. In this regard, detection methods for traces of explosives continue to be plagued by their low volatility and thus, the analytic...
متن کاملAIE luminogen-functionalised mesoporous nanomaterials for efficient detection of volatile gases.
Mesoporous silica nanoparticles functionalised with aggregation-induced emission (AIE) luminogen via a carbon-nitrogen double bond are fabricated into films by a dip-coating method. The as-made films can serve as efficient fluorescent sensors for the naked-eye detection of volatile acid gases by colour and emission changes, as well as for the detection of 2,4-dinitrotoluene vapours by fluoresce...
متن کاملBenzothiazolium-functionalized tetraphenylethene: an AIE luminogen with tunable solid-state emission.
Melding a benzothiazolium unit with tetraphenylethene generates a new hemicyanine luminogen with aggregation-induced emission characteristics; the luminogen exhibits crystochromism and its solid-state emission can be repeatedly tuned from yellow or orange to red by grinding-fuming or grinding-heating processes due to the transformation from the crystalline to the amorphous state and vice versa.
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Replacement of phenyl ring(s) in tetraphenylethene by naphthalene ring(s) generates a series of new luminogens with aggregation-induced emission (AIE) characteristics, demonstrating that bulky naphthalene rings can serve as a rotor to construct AIE luminogens.
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ژورنال
عنوان ژورنال: Chemical Communications
سال: 2012
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c2cc31890c