ELECTRODE
ARRAY
COMPARISONS |
Micro Wire Arrays
M W A |
MicroElectrode Arrays
M E A |
Floating Microelectrode Arrays
F M A |
| Available connector styles |
Any connector style may be used |
Any connector style may be used |
Omnetics Model A8141-001 nano only |
| Maximum # of wires/electrode per array |
64 with multiple connectors |
64 with multiple connectors |
36 |
| Minimum # of wires/electrodes |
4 |
4 |
4 |
| Available metal types |
Stainless Steel and Platinum/Iridium |
Tungsten, Platinum/Iridium & Iridium |
Platinum/Iridium & Iridium |
| Electrode insulation types/electrodes |
Teflon (TFE) or Polyimide (Kapton) |
Parylene-C |
Parylene-C |
| Tip exposure method |
Wire cut off |
Arc discharge or controlled laser ablation |
Arc discharge or controlled laser ablation |
| Electrode/wire tip diameters available |
25 or 50 micron plus insulation thickness |
1 to 6 microns as specified |
1 to 6 microns as specified |
| Maximum electrode/wire lengths |
30 mm |
40 mm |
10 mm |
| Available with different inner electrode distances |
yes, in multiples of 250 microns |
yes, 100 to 1000 microns |
yes by special order, 400 micron typical |
| Is polyimide tubing available for added stiffness |
no |
yes |
no |
| Can electrodes by activated for stimulation |
no |
yes for pure iridium only |
yes for pure iridium only |
| Can electrdoes have diffenent lengths |
not within rows but yes for different rows |
yes, 1.0 to 25 mm |
yes, 0.5 to 10 mm |
| Available tip impedence values |
0.2-1.0 meg based on wire dia. & metal |
10 kilohm to 2.5 megohm |
10 kilohm to 2.5 megohm |
| Available with reference and/or ground electrode |
yes |
yes |
yes |
| Typical recording time |
2 to 4 months |
4 to 8 months |
greater than 8 months |
| Typical delivery time |
3 to 5 days for less than 20 |
4 to 6 days for less than 10 |
5 to 10 days for less than 5 |
| Typcial cost for Pt/Ir array w/ 16 electrodes/wires |
$255.00 |
$643.00 |
$900.00 |
