NDLI: Localized fluorescent complexation enables rapid monitoring of airborne nanoparticles

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Localized fluorescent complexation enables rapid monitoring of airborne nanoparticles

Content Provider	Royal Society of Chemistry (RSC)
Author	Meng, Fanxu Hassan, Yassin A. King, Maria D. Ugaz, Victor M.
Copyright Year	2014
Abstract	We introduce an approach that enables continuous monitoring of airborne nanoparticles by online detection and quantification of the collected species. Our method uniquely combines ultra-high flow rate sampling (up to thousands of liters per minute) with sensitive detection based on localized fluorescent complexation, permitting rapid quantitative measurement of airborne nanoparticle concentration. By coupling these components, we show initial results demonstrating detection of airborne ultrafine Al2O3 nanoparticles at environmental concentrations below 200 μg m−3 in air sampled at 200 L min−1. This capability suggests potential for online monitoring, making it possible to establish dynamic exposure profiles not readily obtainable using current-generation personal sampling instruments. The underlying fluorescent complexation interactions are inherently size and composition dependent, offering potential to straightforwardly obtain continuous detailed characterization.
Starting Page	358
Ending Page	366
Page Count	9
File Format	HTM / HTML PDF
ISSN	20518153
Volume Number	1
Issue Number	4
Journal	Environmental Science: Nano
DOI	10.1039/c4en00017j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Particulates Nanoparticle
Content Type	Text
Resource Type	Article
Subject	Environmental Science Materials Science

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