Title :
Low-weight electrostatic sampler for airborne nanoparticles
Author :
Merzsch, S. ; Wasisto, H.S. ; Waag, A. ; Kirsch, I. ; Uhde, E. ; Salthammer, T. ; Peiner, E.
Author_Institution :
Inst. of Semicond. Technol. (IHT), Braunschweig Univ. of Technol., Braunschweig, Germany
Abstract :
This paper presents a novel sampler for airborne nanoparticles (NPs). A synthetic aerosol is forced through a tiny tube containing a self-sensing cantilever for attached NPs mass determination. The sampler is miniaturized (tube mass = 39 g, volume = 18.85 cm3) to assure its applicability for personal NPs exposure monitoring Using the first prototype of the sampler an added mass 2.69 ± 0.02 ng was measured under typical test conditions, i.e. airborne carbon NPs of a concentration of 5941 ± 145 NPs/cm3 during a period of 15 min.
Keywords :
aerosols; cantilevers; electrostatic devices; monitoring; nanoparticles; airborne nanoparticles; electrostatic sampler; exposure monitoring; mass determination; self-sensing cantilever; synthetic aerosol; Aerosols; Carbon; Electron tubes; Monitoring; Nanoparticles; Sensors; Silicon; airborne nanoparticles; mass sensitivity; piezoresistive cantilever; portability; sampling;
Conference_Titel :
Sensors, 2011 IEEE
Conference_Location :
Limerick
Print_ISBN :
978-1-4244-9290-9
DOI :
10.1109/ICSENS.2011.6127335
