A group of researchers from Zhejiang University and East China University of Science and Technology have developed a new biological hemostatic material, which helps stop massive hemorrhages from major artery and cardiac penetrating injuries.
Their findings were released on May 15 in Nature Communications, one of the most prestigious scientific journals dedicated to publishing high-quality research papers.
According to a video released by the team, a gush of blood from a piglet's penetrating heart wound by a six-millimeter diameter iron pipe was stopped with the material and ultraviolet irradiation within seconds.
"The size and structure of a pig's heart are the most similar to that of a human heart. Stopping bleeding from a beating heart is the toughest task," said Ouyang Hongwei, a co-correspondent author of the paper and professor at Zhejiang University's School of Medicine.
He said the material enables the wound to heal without sewing and that no abnormality was found on the piglet in the two-week convalescence test after the operation.
According to the paper, the material is biomimetic and its main components are sensitive to light. As long as ultraviolet light appears, the material can quickly grow two layers of grid structure, turn to solid from liquid, and strongly adhere to the moist surface of organs.
In addition, the bio-glue also has material strength. It can resist blood pressure and systolic blood pressure of heart beating, showing good performance for repairing.
Liu Changsheng, an academician from the Chinese Academy of Sciences said that the research improves the hemostasis and sealing of massive bleeding tissue sections.
"It is convenient for operations and has broad application prospects," Liu said.