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@ARTICLE{Bendali:202359,
author = {Bendali, Amel and Agnès, Charles and Meffert, Simone and
Forster, Valérie and Bongrain, Alexandre and Arnault,
Jean-Charles and Sahel, José-Alain and Offenhäusser,
Andreas and Bergonzo, Philippe and Picaud, Serge},
title = {{D}istinctive {G}lial and {N}euronal {I}nterfacing on
{N}anocrystalline {D}iamond},
journal = {PLoS one},
volume = {9},
number = {3},
issn = {1932-6203},
address = {Lawrence, Kan.},
publisher = {PLoS},
reportid = {FZJ-2015-04620},
pages = {e92562 -},
year = {2014},
abstract = {Direct electrode/neuron interfacing is a key challenge to
achieve high resolution of neuronal stimulation required for
visual prostheses. Neuronal interfacing on biomaterials
commonly requires the presence of glial cells and/or protein
coating. Nanocrystalline diamond is a highly mechanically
stable biomaterial with a remarkably large potential window
for the electrical stimulation of tissues. Using adult
retinal cell cultures from rats, we found that glial cells
and retinal neurons grew equally well on glass and
nanocrystalline diamond. The use of a protein coating
increased cell survival, particularly for glial cells.
However, bipolar neurons appeared to grow even in direct
contact with bare diamond. We investigated whether the
presence of glial cells contributed to this direct
neuron/diamond interface, by using purified adult retinal
ganglion cells to seed diamond and glass surfaces with and
without protein coatings. Surprisingly, these fully
differentiated spiking neurons survived better on
nanocrystalline diamond without any protein coating. This
greater survival was indicated by larger cell numbers and
the presence of longer neurites. When a protein pattern was
drawn on diamond, neurons did not grow preferentially on the
coated area, by contrast to their behavior on a patterned
glass. This study highlights the interesting
biocompatibility properties of nanocrystalline diamond,
allowing direct neuronal interfacing, whereas a protein
coating was required for glial cell growth.},
cin = {ICS-8},
ddc = {500},
cid = {I:(DE-Juel1)ICS-8-20110106},
pnm = {453 - Physics of the Cell (POF2-453)},
pid = {G:(DE-HGF)POF2-453},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000333459900075},
pubmed = {pmid:24664111},
doi = {10.1371/journal.pone.0092562},
url = {https://juser.fz-juelich.de/record/202359},
}