title: Diaminopropionic Acid Reinforced Graphene Sponge and Its Use for Hemostasis.
abstract: 2,3-Diaminopropionic acid (DapA), a medicinal amino acid, is used for the first time to prepare a DapA cross-linked graphene sponge (DCGS) for hemostasis treatment. In a comparison with the reported ethanediamine (EDA) cross-linked graphene sponge (CGS), this carboxyl-functionalized DCGS can not only quickly absorb plasma, but also stimulate erythrocytes and platelets to change their normal form and structure at the interface, which largely affects a cell's metabolism and biofunction, thus further promoting blood coagulation. Whole blood clotting and rat-tail amputation tests indicated that on the basis of the additional interfacial stimulation, the hemostatic efficiency of the DCGS has been significantly improved in comparison with that of the CGS control (P < 0.05). In-depth insight revealed that the increased oxidation degree and the negative charge density play the crucial rule in the enhanced hemostatic performance. The chiral effect contributes mainly to the selective adhesion of erythrocytes and platelets rather than practical hemostasis. Nevertheless, this presentation demonstrated that, on the premise of keeping the fast absorbability, this is an effective method to improve the hemostatic efficiency by enhancing the cell/graphene interface interaction.
authors.affiliation: The State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China.
authors.forename: Kecheng
authors.initials: K
authors.lastname: Quan
authors.affiliation: The State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China.
authors.forename: Guofeng
authors.initials: G
authors.lastname: Li
authors.affiliation: The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Tao
authors.affiliation: Nephrology Department, Peking University Third Hospital , Beijing 100191, P. R. China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Xie
authors.affiliation: The State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China.
authors.forename: Qipeng
authors.initials: Q
authors.lastname: Yuan
authors.affiliation: The State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, P. R. China.
authors.forename: Xing
authors.initials: X
authors.lastname: Wang
mesh_terms: D000818:Animals; D000925:Anticoagulants / Q000737:chemistry / Q000494:pharmacology; D002448:Cell Adhesion / Q000187:drug effects; D004912:Erythrocytes / Q000378:metabolism* / Q000648:ultrastructure; D006108:Graphite / Q000737:chemistry / Q000494:pharmacology; D006487:Hemostasis / Q000187:drug effects*; D051381:Rats; D017207:Rats, Sprague-Dawley; D015091:beta-Alanine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000925:Anticoagulants; D015091:beta-Alanine; D006108:Graphite; C011757:2,3-diaminopropionic acid
keywords: 2,3-diaminopropionic acid; carboxyl-functionalization; cross-linked graphene sponge; hemostasis; interfacial stimulation