Selective Visual Detection of TNT at the Sub-Zeptomole Level

How low can you go? The visual detection of 2,4,6‐trinitrotoluene and Hg2+ at the sub‐zeptomole level is demonstrated. This was achieved using a hybrid material that allowed for the development of a single‐particle, single‐molecule detection technique, which may be the ultimate in ultra‐trace sensit...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2012-09, Vol.51 (38), p.9596-9600
Main Authors: Mathew, Ammu, Sajanlal, P. R., Pradeep, Thalappil
Format: Article
Language:English
Subjects:
Fluorescence
Gold - chemistry
hybrid material
Materials selection
mesoflowers
Microscopy, Fluorescence
nanoparticles
quantum clusters
Selectivity
sensors
Silicon Dioxide - chemistry
Silver - chemistry
TNT
Trinitrotoluene - analysis
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Summary:How low can you go? The visual detection of 2,4,6‐trinitrotoluene and Hg2+ at the sub‐zeptomole level is demonstrated. This was achieved using a hybrid material that allowed for the development of a single‐particle, single‐molecule detection technique, which may be the ultimate in ultra‐trace sensitivity with selectivity.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201203810