0000000000749933

AUTHOR

Tomáš Dropa

showing 2 related works from this author

A Rapid and Sensitive Strip-Based Quick Test for Nerve Agents Tabun, Sarin, and Soman Using BODIPY-Modified Silica Materials

2016

Test strips that in combination with a portable fluorescence reader or digital camera can rapidly and selectively detect chemical warfare agents (CWAs) such as Tabun (GA), Sarin (GB), and Soman (GD) and their simulants in the gas phase have been developed. The strips contain spots of a hybrid indicator material consisting of a fluorescent BODIPY indicator covalently anchored into the channels of mesoporous SBA silica microparticles. The fluorescence quenching response allows the sensitive detection of CWAs in the mu g m(-3) range in a few seconds.

Boron CompoundsSarinSilicon dioxideSomanAnalytical chemistrynerve gases010402 general chemistry01 natural sciencesCatalysischemistry.chemical_compoundSomanQUIMICA ANALITICAmedicineChemical Warfare AgentsTabunNerve agenthybrid sensor materialsChromatography010405 organic chemistryOrganic ChemistryQUIMICA INORGANICAGeneral ChemistrySilicon DioxideFluorescenceSarinOrganophosphates0104 chemical scienceschemistrychemical warfare agentstest strip analysisProthrombin TimefluorescenceBODIPYMesoporous materialNerve Agentsmedicine.drug
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Determination of the chemical warfare agents Sarin, Soman and Tabun in natural waters employing fluorescent hybrid silica materials

2017

[EN] A novel mesoporous silica material containing boron-dipyrromethene (BODIPY) moieties (I) is employed for the detection of nerve agent simulants (NASs) and the organophosphate nerve or chemical warfare agents (CWAs) Sarin (GB), Soman (GD), and Tabun (GA) in aqueous environments. The reactive BODIPY dye with an optimum positioned hydroxyl group undergoes acylation reactions with phosph(on)ate substrates, yielding a bicyclic ring. Due to aggregation of the dyes in water, the sensitivity of the free dye in solution is very low. Only after immobilization of the BODIPY moieties into the silica substrates is aggregation inhibited and a sensitive determination of the NASs diethyl cyanophosphon…

010402 general chemistry01 natural sciencesFluorescence detectionchemistry.chemical_compoundQUIMICA ANALITICAMaterials ChemistrymedicineOrganic chemistryReactivity (chemistry)Electrical and Electronic EngineeringInstrumentationNerve agentTabunAqueous solutionQuenching (fluorescence)010405 organic chemistryChemistryQUIMICA INORGANICAMetals and AlloysMesoporous silicaCondensed Matter Physics0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsDiethyl chlorophosphateNerve agent simulantsMesoporous silica materialsBODIPYmedicine.drugNuclear chemistry
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