E-Mail IMAGE: Concept and application (e.g., aneurysm embolization) of a double?crosslinked alginate?based hydrogel with tantalum nanopowder (DAT) microfibers continuously spun by an optical?fiber?integrated microfluidic device (OFI?MD). view more Credit: POSTECH Cerebral aneurysms are malformations caused by abnormalities on the walls of blood vessels in the brain. When these blood vessels rupture, about 30% of the sufferers die on the spot, giving these the rightful label of 'ticking bombs in the head'. Recently, a research team at POSTECH has come up with a new treatment that can disassemble these time bombs by filling the aneurysm in blood with a new method.