The National Institutes of Health (NIH) is offering a funding opportunity under the BRAIN Initiative to develop scaled reagent resources for brain cell type-specific access across vertebrate species, including human ex vivo tissues. This initiative aims to engineer, validate, and disseminate molecular tools that enhance the understanding of brain circuits, ultimately contributing to new treatments for brain disorders through innovative neurotechnologies. Eligible applicants include a diverse range of organizations, and the NIH anticipates committing approximately $14 million annually to fund four to six awards, with a maximum project duration of five years. Interested parties can find more information and submit inquiries via grantsinfo@nih.gov, with applications due by January 17, 2025.