Silicon chip maps/ catagorizes more than 70,000 synaptic neuronal network connections from about 2,000 rat neurons

https://techxplore.com/news/2025-02-silicon-chip-synaptic-neuronal-network.html#google_vignette

"electrophysiological recording small yet telltale synaptic signals using 4,096 microhole electrode array on silicon chip... shows in parallel which neurons connect to which others... microhole electrodes better couple to interiors of neurons than the vertical nanoneedle electrodes/ easier fabrication... >90% of microhole electrodes intracellularly coupled to neurons on top, better quality recording data categorizes each synaptic connection based on characteristics/ strengths... working toward newer design deploying in live brain"