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@ARTICLE{Hondrich:865344,
author = {Hondrich, Timm J. J. and Deußen, Oliver and Grannemann,
Caroline and Brinkmann, Dominik and Offenhäusser, Andreas},
title = {{I}mprovements of microcontact printing for micropatterned
cell growth by contrast enhancements},
journal = {Micromachines},
volume = {10},
number = {10},
issn = {2072-666X},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2019-04843},
pages = {659 -},
year = {2019},
abstract = {Patterned neuronal cell cultures are important tools for
investigating neuronal signal integration, network function,
and cell–substrate interactions. Because of the variable
nature of neuronal cells, the widely used coating method of
microcontact printing is in constant need of improvements
and adaptations depending on the pattern, cell type, and
coating solutions available for a certain experimental
system. In this work, we report on three approaches to
modify microcontact printing on borosilicate glass surfaces,
which we evaluate with contact angle measurements and by
determining the quality of patterned neuronal growth.
Although background toxification with manganese salt does
not result in the desired pattern enhancement, a simple heat
treatment of the glass substrates leads to improved
background hydrophobicity and therefore neuronal patterning.
Thirdly, we extended a microcontact printing process based
on covalently linking the glass surface and the coating
molecule via an epoxysilane. This extension is an additional
hydrophobization step with dodecylamine. We demonstrate that
shelf life of the silanized glass is at least 22 weeks,
leading to consistently reliable neuronal patterning by
microcontact printing. Thus, we compared three practical
additions to microcontact printing, two of which can easily
be implemented into a workflow for the investigation of
patterned neuronal networks},
cin = {ICS-8},
ddc = {620},
cid = {I:(DE-Juel1)ICS-8-20110106},
pnm = {552 - Engineering Cell Function (POF3-552)},
pid = {G:(DE-HGF)POF3-552},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31574944},
UT = {WOS:000494485000033},
doi = {10.3390/mi10100659},
url = {https://juser.fz-juelich.de/record/865344},
}