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New eye surface reconstruction method using mussel adhesive protein The eye is the first sensory organ that recognizes the presence or shape of an object. The conjunctiva is a thin mucous membrane that covers the front half of the eyeball. It protects the eye by secreting mucus and tears for lubrication, and prevents microorganisms from entering. However, since it is exposed to the air, it is susceptible to damages by microorganisms, bacteria, or dust. In fact, if fibrovascular tissues are left to propagate on its surface, they can lead to diseases like pterygium, which can cause visual deterioration. To treat such conditions, an operation to remove and regenerate the damaged conjunctiva is performed. Recently, a Korean research team has developed a new method for performing sutureless amniotic membrane transplantation using the mussel adhesive protein. ....
Regenerating damaged eyes with mussel protein and amniotic membrane eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.
Credit: POSTECH Mussels survive by sticking to rocks in the fierce waves or tides underwater. Materials mimicking this underwater adhesion are widely used for skin or bone adhesion, for modifying the surface of a scaffold, or even in drug or cell delivery systems. However, these materials have not entirely imitated the capabilities of mussels. A joint research team from POSTECH and Kangwon National University (KNU) - led by Professor Hyung Joon Cha and Ph.D. candidate Mincheol Shin of the Department of Chemical Engineering at POSTECH with Professor Young Mee Jeong and Dr. Yeonju Park of the Department of Chemistry at KNU - has analyzed Dopa and lysine, which are the amino acids that make up the surface adhesive proteins secreted by mussels, and verified that their roles are related to their location. The team has taken a step closer to revealing the secret of underwater adhesion by uncovering that these amino acids can contribute to surface adhesion and cohesion differentl ....
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. ....
POSTECH professor Hyung Joon Cha s research team develops a drug-delivering adhesive patch that mimics the blood vessel formation mechanism. The patch can be applied to any shape anyplace and was verified for the regenerations of myocardial infarction and severe skin loss. ....