The National Institutes of Health (NIH) is offering a funding opportunity titled "Engineering Next-Generation Human Nervous System Microphysiological Systems" under the R21 grant mechanism. This initiative aims to support research applications focused on developing advanced human cell-derived microphysiological systems (MPS) that accurately replicate the complex architecture and physiology of the nervous system, with an emphasis on enhancing understanding of nervous system development, function, and aging in both healthy and disease states. The funding, with a maximum budget of $275,000 over two years, is open to a wide range of eligible applicants, including educational institutions, community organizations, and international entities. Interested parties should note that the application deadline is January 7, 2026, and can find further details and contact information at grantsinfo@nih.gov or through the provided link to the full announcement.