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@PHDTHESIS{Schlter:59548,
author = {Schlüter, Michael},
othercontributors = {Mokwa, Wilfried},
title = {{M}ikrofluidische {S}trukturen für biochemische
{A}nalysen},
address = {Aachen},
publisher = {Publikationsserver der RWTH Aachen University},
reportid = {RWTH-CONV-121326},
pages = {128 S. : Ill., graph. Darst.},
year = {2004},
note = {Aachen, Techn. Hochsch., Diss., 2004},
abstract = {The immunoassay is an important serological detection
method for biochemical active materials (antigens /
anti-bodies). By designing appropriate micro fluidic
structures to perform the classic process steps of an
immunoassay it can be integrated on a microfluidic chip. The
reagents are transported through a micro fluidic reaction
chamber where they perform the biochemical reactions. These
reagents are stored in the micro-fluidic channels on the
chip. The suitability of adhesive foils as low priced and
simple seals of the microfluid channels is shown by
performing immunoassays in micro-fluid cuvette structures.
Signal detection can be performed by fluorescence and by
chemoluminescence with sufficient accuracy for, e.g. the
diagnosis of a cardiac infarct. A micro pump with two
dimensional valve structures without moving parts was
developed for the liquid-handling on the micro-fluidic chip.
This pump can be manufactured by photolithographic
techniques for prototyping as well as by mass production
processes, like hot embossing and injection moulding.
Integration of this micro pump into fluidic chip structures
manufactured from SU-8 photoresist shows the suitability of
this pump for the production of micro-fluid analysis
systems. A computer control was developed, which can operate
the complete process cycle for a micro-fluidic Immunoassay.
The performance of the micro pump, and the reaction chamber
were optimized by computer simulations. The channel crossing
where the different reagents enter the reaction chamber was
also improved by computational fluid dynamics (cfd). The
performance of a myoglobin immunoassay in a completely
integrated fluidic chip manufactured from PMMA shows the
capability of detection of a myoglobin concentration of less
than 100 ng/m. The measurement of these myoglobin
concentrations can be used for the detection of cardiac
infarcts from human blood samples.},
cin = {600000},
ddc = {570},
cid = {$I:(DE-82)600000_20140620$},
typ = {PUB:(DE-HGF)11},
urn = {urn:nbn:de:hbz:82-opus-8936},
url = {https://publications.rwth-aachen.de/record/59548},
}