Electrodes · Instrumentation
Organoid Array
A publication about the hardware between living neurons and a computer: electrode arrays, the amplifiers and converters behind them, and the latency budget that decides whether a closed loop is possible at all.
Latest analysis
October 10, 2026 Excited, inhibited, unchanged: a sharper MEA readoutA University of Trento preprint replaces single-number MEA summaries with per-electrode, per-segment classification into excited, inhibited, or unchanged states, calibrated against vehicle-control variability. It sharpens small drug and optogenetic effects, and it quietly re-specifies what the acquisition chain owes the analysis.
October 10, 2026
Textile EMG grids and the front-end lesson for MEAs
A graphics paper records 64 channels of facial surface EMG on two textile grids and decodes 383 expression blendshapes at 100 Hz from muscle activity alone. The neural network is unremarkable; the instrumentation lessons for anyone building dense microelectrode arrays are not.
October 8, 2026
Spiking neuron models and the real-time loop twin
A survey from Innopolis University classifies single-compartment spiking neuron models from integrate-and-fire to Hodgkin-Huxley, with a comparison table of variables, parameters, and FLOPs. Its real value for array work is an explicit compute budget for the model that must run faster than the tissue in any closed-loop setup.
October 8, 2026
Frontier decomposition and the MEA channel budget
A hybrid quantum-classical paper solves dense subset-selection by optimizing only a small rotating frontier of variables at a time. The mechanism, freezing the rest into reduced coefficients and crawling across stages, is a directly readable template for channel scheduling on high-density microelectrode arrays.
October 7, 2026
A movable crystal as a trainable analog kernel
Researchers built an all-optical classifier where a single nonlinear crystal performs the feature expansion of a support vector machine kernel, retuned by translating the crystal along the beam axis. The lesson for microelectrode array instrumentation is not optical; it is about what the acquisition chain already computes in physics, and how cheaply it can be calibrated.
October 6, 2026
Inverse design is coming for the analog front end
A perspectives article from the University of Vienna surveys inverse design in magnonics, where algorithms now find device structures that manual design cannot, including optimization run directly on physical hardware with no simulation. The same methodology reframes how MEA front ends and the electrode-tissue interface could be designed, calibrated, and specified.
October 6, 2026
A quantum compiler wall shows where array scaling breaks
ARGON, a compilation framework for neutral-atom quantum processors, breaks a scheduling bottleneck by precomputing hardware-certified spatial layouts offline and guiding routing with a graph neural network. The same spatiotemporal decoupling maps directly onto the configuration-management problem that large-channel-count MEAs have been quietly accumulating.
Start here
Standing explainers that do not go stale. Read the spec sheet first if this field is new to you.
The spec sheet
Organoid-on-a-chip and MEA hardware
The full interface: electrode materials, recording and stimulation electronics, microfluidics, and the closed-loop latency that makes biocomputing possible.
Specification
How electrode density shapes what you can read
Pitch, count and coverage, and why more electrodes stop helping once the tissue is the limit.
Specification
The signal acquisition chain, end to end
From electrode impedance through amplification and conversion to the noise floor you actually get.
Sections
How we work
Hardware claims are checked against datasheets and published measurements, and we distinguish a specification from a measured result: a quoted noise floor obtained in saline is not the noise floor you will see through living tissue. Where a number depends on conditions, we give the conditions or we do not give the number. The full method, including how pieces are selected and produced, is on the about page.