一項(xiàng)最新研究發(fā)現(xiàn)，一種簡(jiǎn)單的生物降解液體能夠在數(shù)秒鐘之內(nèi)止住受傷囁齒類(lèi)動(dòng)物的出血，該研究能夠顯著提高重癥患者的預(yù)后，減少手術(shù)時(shí)間。

麻省理工學(xué)院(MIT, Cambridge, USA)和香港大學(xué)(HKU)的研究人員發(fā)現(xiàn)，該液體由蛋白片斷(肽類(lèi))組成，可以用于開(kāi)放性傷口，這些肽類(lèi)可以自我排列形成納米級(jí)的保護(hù)膠，可以封閉傷口而止血。一旦傷口愈合，這種無(wú)毒的膠就分解成為氨基酸，周?chē)募?xì)胞可以利用這些物質(zhì)進(jìn)行組織修復(fù)。研究人員將這種液體用于倉(cāng)鼠和大鼠的開(kāi)放性傷口，檢測(cè)的組織包括：腦、肝臟、皮膚、脊髓和腸道。

 
New Material Stops Bleeding in Seconds
 
A new study has found that simple biodegradable liquids can stop bleeding in wounded rodents within seconds, a development that could significantly improve critical care and lessen surgery time.

Researchers from the Massachusetts Institute of Technology (MIT, Cambridge, USA) and Hong Kong University (HKU) have found that when the liquid, composed of protein fragments (peptides), is applied to open wounds, the peptides self-assemble into a nanoscale protective barrier gel that seals the wound and halts bleeding. Once the injury heals, the nontoxic gel is broken down into amino acids that the surrounding cells can use as building blocks for tissue repair. The researchers applied the liquid to open wounds in hamsters and rats, testing different types of tissue: brain, liver, skin, spinal cord, and intestine.