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UPSC Prelims Current Affairs

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January 2026

Current Affairs

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Blood-brain barrier

The blood-brain barrier is a selective permeability barrier. It protects the brain from harmful substances. This barrier consists of tightly packed cells. It regulates the passage of molecules. The blood-brain barrier plays a crucial role in neuroscience. It affects drug delivery for neurological diseases. Understanding it is vital for medical advancements. Research continues to uncover its complexities.

MIT Develops Laser-Based Brain Imaging Tool

MIT researchers announced a bioimaging technique on 27–28 April 2026 that uses a self-organising “pencil beam” laser for 3D imaging of the human blood-brain barrier. The method achieves...

April 29, 2026