The51st Salon International des Inventions de Genève (the51st International Exhibition of Inventions of Geneva) was recently held in Switzerland. The team led by Liu Hong and Zhao Chao from the School of Biological Science and Medical Engineering / State Key Laboratory of Digital Medical Engineering at Southeast University won the Gold Award for their brain-computer interface (BCI) chip.
The BCI chip invention demonstrated by the team is a large-scale, high-density ultra-microelectrode array fabricated using CMOS technology, designed for electrochemical and electrophysiological sensing. The chip contains 24,576 ultra-microelectrodes and enables dual-modal recording and analysis of biological neural networks, significantly enhancing measurement throughput and spatiotemporal resolution compared to existing technologies.
This invention serves as a platform for constructing in vitro brain-computer interfaces, facilitating research involving brain organoids or acute brain slices. It is capable of detecting neurotransmitters and action potentials released by neurons with single-neuron spatial resolution and millisecond temporal precision, offering broad application prospects in brain science and the diagnosis and treatment of brain disorders.
