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- W3154904340 abstract "Abstract Uncontrolled bleeding is thought to be the most deadly cause of pre‐hospital, traffic, and military accidents death. However, the popular commercial hemostats can only realize the hemostasis of mild bleeding. Therefore, we developed polydopamine (PDA) composite materials (PMs), which applied hydroxyapatite as the parent body. The PMs were produced via lyophilization and functionalized with amino, phenol hydroxyls groups, which endowed hydrophobicity to materials. This ensured a high aggregation ability of blood cells to the PMs and they were tested to be as high as 300% compared with the negative control group. The clotting time was shortened to 79.7% compared with the usually used commercial hemostat (Celox) in the test of in vitro hemostasis. Through the results of PT and APTT tests, blood coagulation index test, and the analysis of intracellular Ca 2+ activation, we further understood the mechanism of the hemostasis of the materials, which explained the low blood loss and quick coagulation time of the PM hemostats in detail. Besides, the low hemolysis and cytotoxicity of the PMs suggested the good biocompatibility of the hemostats, which was further proved by the regular morphology maintained by erythrocytes in the hemolysis tests. The study of nanoscale composites led the research for the methods of hemostasis." @default.
- W3154904340 created "2021-04-26" @default.
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- W3154904340 date "2021-04-13" @default.
- W3154904340 modified "2023-10-18" @default.
- W3154904340 title "Biomimetic hydroxyapate/polydopamine composites with good biocompatibility and efficiency for uncontrolled bleeding" @default.
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- W3154904340 doi "https://doi.org/10.1002/jbm.b.34849" @default.
- W3154904340 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33847453" @default.
- W3154904340 hasPublicationYear "2021" @default.
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