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Cantilever micro balance as nanoparticle exposure monitor

: Wasisto, H.S.; Waag, A.; Merzsch, S.; Uhde, E.; Peiner, E.

Kızıl, Hüseyin:
MME 2014, 25th Micromechanics and Microsystems Europe Workshop. CD-ROM : August 31 - September 3, 2014, Istanbul, Turkey
Istanbul, 2014
4 pp.
Micromechanics and Microsystems Europe Workshop (MME) <25, 2014, Istanbul>
Conference Paper
Fraunhofer WKI ()
engineered airborne nanoparticles; cantilever resonator; electrophoretic sampler; personal monitor; direct read out; pocket size system

An electrophoretic cantilever-based nanoparticle (NP) sensor was described for personal monitoring of occupational exposure at workplace. Online measurements performed under defined NP concentrations in a climate chamber confirmed the feasibility of the measurement principle. Cyclic switching between NP sampling and frequency tracking revealed settling times of 5 min and 1.5 min,respectively, until stable conditions were reached. Using an improved design of the sampling head a fully integrated pocket-size system offers a reduced response time of 20 s.