Publication

MAIS: an in-vitro sandbox enables adaptive neuromodulation via scalable neural interfaces

March 17, 2025
Advanced Electrical Stimulation
Closed Loop
MaxOne
MaxOne Chip
Neurocomputing
Neuronal Cell Cultures
Haoman Chen, Fanxuan Chen, Xinyu Chen, Yang Liu, Junpeng Xu, Jiajun Li, Xueying Bao, Yuzhe Chen, Haojun Sun, Jiaju Jiang, Fangzhou Ye, Jianzhong Su, Yang Gen, Fangfu Ye, Zhouguang Wang, Liyu Liu, Saiyin Hexige, Xiaokun Li, Lixiang Ma, Jianwei Shuai
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Abstract

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Brain-machine interfaces (BMIs) predominantly rely on static digital architectures to decode biological neuronal networks, a paradigm that is incompatible with natural neural coding in the human brain1-4. Bridging this gap is a critical step in combating neuronal dysfunction, enhancing brain functionality, and refining the precision of neuroprosthetics5. The integration of brain organoids with microelectrode array (MEA), as a class of BMIs, offers a humanized in vitro platform with unique biological compatibility advantages for dynamic neuronal decoding. This study resolves the biological-electronic encoding incompatibility of brain organoid-MEA Integration through three progressive breakthroughs. First, a human-machine hybrid agent is developed as a newly proposed bioengineered platform that couples brain organoids together with high-density MEAs and computational chips, enabling closed-loop perturbation of biological neuronal networks via exogenous signals. Second, through plasticity-driven real-time tracking of neuronal activity, we establish dynamically reconfigurable stimulation nodes that self-align with the electrophysiological states of the organoids. This resolves the exogenous-endogenous encoding mismatch by implementing plasticity-driven adaptation principles that ensure biological compatibility through spatially adaptive coordination. Finally, through shared plasticity rules rather than centralized control, we construct the first scalable multi-agent interactive system (MAIS) and demonstrate its real-world applications. Through designed scenarios of pathological/normal neuronal network interaction, we validate that MAIS achieves stable cross-network coordination. MAIS embodies a self-evolving neural coding sandbox in which plasticity-driven dynamic decoding bridges the compatibility gaps between biological and digital systems, providing a scalable and foundational infrastructure for human-centered neural interfaces.