Electrodes for brain, spinal cord, nerve, and heart
Silicon probes and flexible thin-film grids: 210+ silicon designs, 50+ grid designs, from 4 to 1,024+ sites.
Start here
Filter 210+ silicon designs by site count, pitch, depth and layout, then open the datasheet.
Open the finderPenetrating arrays for brain, spinal cord and nerve: linear, tetrode, polytrode and edge layouts.
Silicon probesFlexible surface arrays for ECoG, EEG, nerve cuffs and cardiac recording.
Thin-film grids5,100+ citations
Peer-reviewed publications that used NeuroNexus electrodes
1,000+ labs
On six continents
260+ designs
210+ silicon probe designs and 50+ thin-film grid designs in the catalog
4 to 1,024+ sites
From a four-site Q-Trode to active-pixel SiNAPS probes
General Considerations
Microelectrode arrays with thin shanks that penetrate tissue. Precise site layouts and geometries to 'fit' target anatomy.
Thin, flexible polymer arrays (12 µm thick) the conform to the surface of the brain, skull, nerve, or epicardium.
Support multi-modal electrophysiology: recording, stimulation, optogenetics, targeted drug delivery. Multiple packaging options are available to support diverse applications. All electrodes are plug-and-play with NeuroNexus systems and software, and also are compatible with common third-party products.
Browse by High-level Requirements
Experiment requirements for targets, interfacing modalities, and signals of interest drive first-order electrode selection.
By target
By modality
By signal
Familiar with our electrodes?
Browse by electrode series
Papers that used NeuroNexus electrodes
Not sure which fits?
Tell us the species, the target and the channel count. An Application Scientist will reply with designs that fit.
Choosing an Electrode — FAQ
How do the three browse axes relate?
They are orthogonal — one probe can appear under a target, a modality, and a signal. Start from whichever constraint is fixed first, then narrow with the others.
Can one probe span multiple modalities?
Yes. Optoelectrodes combine recording with optical stimulation; Fusion probes add fluidic drug delivery. A device can belong to several modality collections.
Which axis should I start with?
Start from the constraint you cannot change — usually the anatomical target or the signal band — then filter by the others in the webstore.
Where do I see specs and pricing?
Every collection card opens the webstore filtered to that collection, where you can compare channel counts, site geometry, and configuration.
Why does silicon probe thickness matter?
Substrate thickness sets bending stiffness, the tissue the shank displaces, handling, and how deep a probe can be driven without buckling. Catalog designs come at 15 and 50 µm: the thinner substrate displaces less tissue and bends more; the thicker holds a straight trajectory on long insertions. For deep targets in large animals the Vector Array mounts a 10 to 15 mm silicon array on a rigid 70 or 110 mm support body. The process also reaches 5 µm, a thickness at which less tissue encapsulation has been reported (Seymour and Kipke, 2007); that is a capability discussed per design, not a catalog line.
Can NeuroNexus silicon probes be used in chronic studies?
Yes. NeuroNexus silicon probes are used in acute and chronic studies, and the published chronic record runs to months: Okun et al. (2016) reported long-term recordings with immobile silicon probes in mouse cortex, Haghighi et al. (2025) implanted four-shank silicon arrays in rat somatosensory cortex for 16 weeks, and Mueller et al. (2025) used a 16-site NeuroNexus probe as the silicon comparator in a 12-week chronic study in rat. The amorphous silicon carbide insulation is the material choice behind chronic lifetime, and the package decides the implant method.
Can NeuroNexus probes be used in species from fruit flies to non-human primates?
Yes. The catalog spans the site counts, shank lengths, geometries and thicknesses the range of animal models needs. Published examples run from Drosophila (Van De Poll and van Swinderen, 2025, long-term multichannel recordings across sleep and wake) to macaques (Thirunavukkarasu et al., 2026, laminar probes in the supplementary eye field; Perich et al., 2026, deep brain structures with Vector Arrays). The citation database holds the rest.