PMID- 36674906 OWN - NLM STAT- MEDLINE DCOM- 20230124 LR - 20230201 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 24 IP - 2 DP - 2023 Jan 10 TI - Shape-Memory-Reduced Graphene/Chitosan Cryogels for Non-Compressible Wounds. LID - 10.3390/ijms24021389 [doi] LID - 1389 AB - In this study, an antibacterial and shape-memory chitosan cryogel with high blood absorption and fast recovery from non-compressible wounds was prepared using a one-step method. Herein, we prepared a shape-memory-reduced graphene/chitosan (rGO-CTS) cryogel using a one-step method with a frozen mixing solution of chitosan, citric acid, dopamine, and graphene oxide, before treating it with alkaline solutions. The alkaline solution not only promoted the double cross-linking of chitosan but also induced dopamine to form polydopamine-reducing graphene oxide. Scanning electron microscope (SEM) images showed that the rGO-CTS cryogel possessed a uniform porous network structure, attributing excellent water-induced shape-memory properties. Moreover, the rGO-CTS cryogel exhibited good mechanical properties, antibacterial activity, and biocompatibility. In mouse liver trauma models, the rGO-CTS cryogel showed good blood clotting and hemostatic capabilities. Therefore, this composite cryogel has great potential as a new hemostatic material for application to non-compressible wounds. FAU - Xuan, Hongyun AU - Xuan H AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Du, Qian AU - Du Q AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Li, Ruimeng AU - Li R AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Shen, Xiaoni AU - Shen X AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Zhou, Jiao AU - Zhou J AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Li, Biyun AU - Li B AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Jin, Yan AU - Jin Y AUID- ORCID: 0000-0003-4664-4787 AD - School of Life Science, Nantong University, Nantong 226019, China. FAU - Yuan, Huihua AU - Yuan H AUID- ORCID: 0000-0001-8657-984X AD - School of Life Science, Nantong University, Nantong 226019, China. LA - eng GR - 32000965 and 81801856/National Natural Science Foundation of China/ PT - Journal Article DEP - 20230110 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 9012-76-4 (Chitosan) RN - 0 (graphene oxide) RN - 7782-42-5 (Graphite) RN - 0 (Cryogels) RN - VTD58H1Z2X (Dopamine) RN - 0 (Hemostatics) RN - 0 (Anti-Bacterial Agents) SB - IM MH - Mice MH - Animals MH - *Chitosan/chemistry MH - *Graphite/pharmacology/chemistry MH - Cryogels/chemistry MH - Dopamine MH - *Hemostatics MH - Disease Models, Animal MH - Anti-Bacterial Agents/pharmacology PMC - PMC9863902 OTO - NOTNLM OT - antibacterial OT - hemostatic OT - one-step method OT - reduced graphene/chitosan cryogel OT - shape memory COIS- The authors declare no conflicts of interest. EDAT- 2023/01/22 06:00 MHDA- 2023/01/25 06:00 PMCR- 2023/01/10 CRDT- 2023/01/21 01:27 PHST- 2022/12/07 00:00 [received] PHST- 2023/01/06 00:00 [revised] PHST- 2023/01/10 00:00 [accepted] PHST- 2023/01/21 01:27 [entrez] PHST- 2023/01/22 06:00 [pubmed] PHST- 2023/01/25 06:00 [medline] PHST- 2023/01/10 00:00 [pmc-release] AID - ijms24021389 [pii] AID - ijms-24-01389 [pii] AID - 10.3390/ijms24021389 [doi] PST - epublish SO - Int J Mol Sci. 2023 Jan 10;24(2):1389. doi: 10.3390/ijms24021389.