Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 369146
Title Temperature effects during practical operation of microfluidic chips
Author(s) Swarts, J.W.; Janssen, A.E.M.; Boom, R.M.
Source Chemical Engineering Science 63 (2008). - ISSN 0009-2509 - p. 5252 - 5257.
DOI https://doi.org/10.1016/j.ces.2008.07.014
Department(s) Food Process Engineering
Onderwijsinstituut
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2008
Keyword(s) total analysis systems - fluorescence - resolution - poly(dimethylsiloxane) - profiles - gradient
Abstract The temperature dependent fluorescence of Rhodamine B was used to investigate the temperature effect of several system parameters in a microfluidic chip. This was combined with computational fluid dynamics calculations. Limited air movement over the chip had no significant effect on the temperature of the fluid running through the chip. Also, fluid flow through the channels at had no effect on the chip temperature or heating and cooling dynamics. The temperature varied greatly over the length of the chip. During transient operation of the chip, the heat up and cool down rates varied over the chip, and were dependent on the distance to the heater. The thermal time constant for heat up was four to five times lower than for cool down. The results can be used as tools for operating a temperature controlled microfluidic chip
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