Tat-NR2B9c is primarily used in neuroscience research to study and modulate synaptic plasticity, particularly in the context of learning and memory. It is a peptide that inhibits the interaction between NMDA receptors and PSD-95, a key protein involved in synaptic signaling. By disrupting this interaction, Tat-NR2B9c helps researchers understand the role of NMDA receptors in neuroprotection and neurodegenerative diseases such as stroke, Alzheimer’s, and Parkinson’s. Additionally, it has shown potential in reducing brain damage following ischemic events, making it a promising candidate for therapeutic applications in stroke treatment. Its ability to selectively target specific pathways makes it a valuable tool for exploring mechanisms of neuronal injury and repair.