PMID-23142839 Ultrasmall implantable composite microelectrodes with bioactive surfaces for chronic neural interfaces.
- Here, we report the development of an integrated composite electrode consisting of a carbon-fibre core, a poly(p-xylylene)-based thin-film coating that acts as a dielectric barrier and that is functionalized to control intrinsic biological processes, and a poly(thiophene)-based recording pad.
- 7um diameter carbon nanotubes slide easily into cortex & yield good recording.
- only 0.8um of parlyene-N coating.
- Does it stick well? Does it crack?
- Functionalized the parylene with 50nm of bromine / oxygen complex, bromoisobutyrate.
- PEDOT recording surface drastically lowered impedance.
- Difficult to assemble these little buggers!
|