Functionalized CdSe/ZnS QDs for the detection of nitroaromatic or RDX explosives.

Functionalized CdSe/ZnS QDs for the detection of nitroaromatic or RDX explosives.

Advanced materials (Deerfield Beach, Fla.) (2012-09-26)

Ronit Freeman, Tali Finder, Lily Bahshi, Ron Gill, Itamar Willner

RESUMEN

Chemically modified CdSe/ZnS quantum dots (QDs) are used as fluorescent probes for the analysis of explosives, and specifically, the detection of trinitrotoluene (TNT) or trinitrotriazine (RDX). The QDs are functionalized with electron-donating ligands that bind nitro-containing explosives, exhibiting electron-acceptor properties, to the QD surface, via supramolecular donor-acceptor interactions leading to the quenching of the luminescence of the QDs.

MATERIALES

Referencia del producto

Marca

Descripción del producto

ERT-022S

Supelco

2,4,6-Trinitrotoluene solution, 1000 μg/mL in acetonitrile, ampule of 1.2 mL, certified reference material, Cerilliant^®

ERT-107S

Supelco

2,4,6-Trinitrotoluene solution, 10 mg/mL in acetonitrile, ampule of 5 mL, certified reference material, Cerilliant^®