Haiden, C., Wopelka, T., Jech, M., Puchberger-Enengl, D., Weber, E., Keplinger, F., & Vellekoop, M. J. (2012). A microfluidic system for visualisation of individual sub-micron particles by light scattering. In R. Walczak & J. A. Dziuban (Eds.), 26th European Conference on Solid-State Transducers, EUROSENSOR 2012 (pp. 680–683). Elsevier BV. https://doi.org/10.1016/j.proeng.2012.09.238
E366-01 - Forschungsbereich Mikro- und Nanosensorik
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Published in:
26th European Conference on Solid-State Transducers, EUROSENSOR 2012
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Date (published):
2012
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Event name:
Proc. Eurosensors XXVI
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Event date:
9-Sep-2012 - 12-Sep-2012
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Event place:
Krakau, Poland
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Number of Pages:
4
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Publisher:
Elsevier BV
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Keywords:
Industrial and Manufacturing Engineering; Submicron particle detection; Light scattering; Dry film resist; Flow through microfluidic chip
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Abstract:
We present a novel microfluidic optical chip and corresponding sensor setup for continuous particle detection using light scattering. With the proposed device it is possible to visualise sub-micron and nanometre sized particles in liquid in order to quantify their number without the need for fluorescent labelling. The chip contains a microchannel structured in dry film resist which is crossed by a laser beam so that particles in the flow cross the beam and scatter a portion of the incident light which is recorded at 90° angle. Scattering sub-micron particles appear as clearly visible bright spots of several micrometres in diameter on the video and can individually be counted.
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Research Areas:
Sensor Systems: 45% Special and Engineering Materials: 35% Materials Characterization: 20%
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Science Branch:
Elektrotechnik, Elektronik Sonstige und interdisziplinäre Technische Wissenschaften
