PMID- 31952612 OWN - NLM STAT- MEDLINE DCOM- 20200603 LR - 20200603 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 232 DP - 2020 Mar 15 TI - Puff pastry-like chitosan/konjac glucomannan matrix with thrombin-occupied microporous starch particles as a composite for hemostasis. PG - 115814 LID - S0144-8617(19)31482-1 [pii] LID - 10.1016/j.carbpol.2019.115814 [doi] AB - Hemorrhage control is key for reducing mortality following severe trauma. In this study, we produced a puff pastry-like chitosan/konjac glucomannan matrix loaded with thrombin-occupied microporous starch particles to initiate hemostasis. The composite showed a hierarchical porous structure system consisting of porous and rough structures with evenly distributed microporous starch particles. Thrombin was evenly and independently distributed on the microporous starch particles within the hierarchical system and served to accelerate hemostasis. Meanwhile, the composite displayed excellent water absorption capacity, high zeta potential, roughness, and porosity. The composite was found to elicit desirable pro-thrombin time (PT), activated partial thrombin time (APTT), and whole blood clotting indices (BCI). Experiments using animal models demonstrated that the composite could effectively control wound hemorrhage. Furthermore, the composite showed good biocompatibility and effective degradability. Together, our results show that the puff pastry-like hemostat with hierarchical porous structure offers significant potential for use in hemostasis control. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Shi, Zhenghui AU - Shi Z AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China. FAU - Lan, Guangqian AU - Lan G AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing 400715, China. FAU - Hu, Enling AU - Hu E AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China. FAU - Lu, Fei AU - Lu F AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing 400715, China. FAU - Qian, Ping AU - Qian P AD - Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China. FAU - Liu, Jiawei AU - Liu J AD - Heaquama Biomaterial Co. Ltd (Soochow), Soochow, China. FAU - Dai, Fangyin AU - Dai F AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China. FAU - Xie, Ruiqi AU - Xie R AD - State Key Laboratory of Silkworm Genome Biology, College of Textile and Garments, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, Chongqing 400715, China. Electronic address: xie.ruiqi@connect.polyu.hk. LA - eng PT - Journal Article DEP - 20200107 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 RN - 0 (Hemostatics) RN - 0 (Mannans) RN - 36W3E5TAMG ((1-6)-alpha-glucomannan) RN - 9005-25-8 (Starch) RN - 9012-76-4 (Chitosan) RN - EC 3.4.21.5 (Thrombin) SB - IM MH - Chitosan/*chemistry MH - Hemostatics/*chemistry MH - Mannans/*chemistry MH - Particle Size MH - Porosity MH - Starch/*chemistry MH - Surface Properties MH - Thrombin/*chemistry OTO - NOTNLM OT - Chitosan OT - Hemorrhage control OT - Hierarchical porous structure system OT - Konjac glucomannan OT - Microporous starch particle OT - Thrombin EDAT- 2020/01/19 06:00 MHDA- 2020/06/04 06:00 CRDT- 2020/01/19 06:00 PHST- 2019/10/24 00:00 [received] PHST- 2019/12/24 00:00 [revised] PHST- 2019/12/29 00:00 [accepted] PHST- 2020/01/19 06:00 [entrez] PHST- 2020/01/19 06:00 [pubmed] PHST- 2020/06/04 06:00 [medline] AID - S0144-8617(19)31482-1 [pii] AID - 10.1016/j.carbpol.2019.115814 [doi] PST - ppublish SO - Carbohydr Polym. 2020 Mar 15;232:115814. doi: 10.1016/j.carbpol.2019.115814. Epub 2020 Jan 7.