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@ARTICLE{Westerwalbesloh:862635,
author = {Westerwalbesloh, Christoph and Brehl, Carl and Weber,
Sophie and Probst, Christopher and Widzgowski, Janka and
Grünberger, Alexander and Pfaff, Christian and Nedbal,
Ladislav and Kohlheyer, Dietrich},
title = {{A} microfluidic photobioreactor for simultaneous
observation and cultivation of single microalgal cells or
cell aggregates},
journal = {PLOS ONE},
volume = {14},
number = {4},
issn = {1932-6203},
address = {San Francisco, California, US},
publisher = {PLOS},
reportid = {FZJ-2019-02897},
pages = {e0216093 -},
year = {2019},
abstract = {Microalgae are an ubiquitous and powerful driver of
geochemical cycles which have formed Earth’s biosphere
since early in the evolution. Lately, microalgal research
has been strongly stimulated by economic potential expected
in biofuels, wastewater treatment, and high-value products.
Similar to bacteria and other microorganisms, most work so
far has been performed on the level of suspensions which
typically contain millions of algal cells per millilitre.
The thus obtained macroscopic parameters average cells,
which may be in various phases of their cell cycle or even,
in the case of microbial consortia, cells of different
species. This averaging may obscure essential features which
may be needed for the correct understanding and
interpretation of investigated processes. In contrast to
these conventional macroscopic cultivation and measuring
tools, microfluidic single-cell cultivation systems
represent an excellent alternative to study individual cells
or a small number of mutually interacting cells in a
well-defined environment. A novel microfluidic
photobioreactor was developed and successfully tested by the
photoautotrophic cultivation of Chlorella sorokiniana. The
reported microbioreactor facilitates automated long-term
cultivation of algae with controlled temperature and with an
illumination adjustable over a wide range of photon flux
densities. Chemical composition of the medium in the
microbioreactor can be stabilised or modulated rapidly to
study the response of individual cells. Furthermore, the
algae are cultivated in one focal plane and separate
chambers, enabling single-cell level investigation of over
100 microcolonies in parallel. The developed platform can be
used for systematic growth studies, medium screening,
species interaction studies, and the thorough investigation
of light-dependent growth kinetics},
cin = {IBG-1 / IBG-2},
ddc = {610},
cid = {I:(DE-Juel1)IBG-1-20101118 / I:(DE-Juel1)IBG-2-20101118},
pnm = {581 - Biotechnology (POF3-581)},
pid = {G:(DE-HGF)POF3-581},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31034529},
UT = {WOS:000466131200034},
doi = {10.1371/journal.pone.0216093},
url = {https://juser.fz-juelich.de/record/862635},
}