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Shi J, Shi K, Dong Q, Yang J, Zhou Y, Ma P, She S, Yang F, Gong Z. Self-Oxidated Hydrophilic Chitosan Fibrous Mats for Fatal Hemorrhage Control. ACS Appl Mater Interfaces 2024; 16:8391-8402. [PMID: 38324389 DOI: 10.1021/acsami.3c16912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Enriching erythrocytes and platelets in seconds and providing a fast seal in bleeding sites is vital to fatal hemorrhage control. Herein, hydrophilic chitosan fibrous mats (CECS-D mats) are fabricated by introducing hydrophilic carboxyethyl groups and subsequent catechol groups onto chitosan fibers. Due to strong hydrophilicity, CECS-D mats exhibit rapid liquid-absorption capacity, especially instantaneous absorptivity to the rabbit blood, which can achieve erythrocyte and platelet aggregations quickly by concentrating blood, thus promoting the formation of blood clots. Furthermore, the mats are self-oxidated to form quinone-amine adducts or quinone multimers by adjusting pH conditions, which not only provides tissue adhesion but also induces erythrocyte aggregation and platelet adhesion, further enhancing the seal and triggering quick closure to achieve fast hemostasis. Therefore, the mats reveal superior hemostatic performance in rabbit liver and spleen models over CECS mats and gauze. Especially in the fatal femoral artery injury model of rabbits, the mats reduce the blood loss by ∼75% and shortened the bleeding time by ∼50% compared with CECS mats, which have been reported to have the same hemostatic effect as commercialized Celox products in a swine femoral artery injury model. Besides, the mats are cytocompatible and degradable as well as antibacterial. This chitosan mat is a promising hemostatic material for fatal hemorrhage control.
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Affiliation(s)
- Jinzhi Shi
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, People's Republic of China
| | - Kai Shi
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Qi Dong
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Junfeng Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Yingshan Zhou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430073, People's Republic of China
- College of Materials Science and Engineering, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Peng Ma
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, People's Republic of China
| | - Sha She
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, People's Republic of China
| | - Fan Yang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, People's Republic of China
| | - Zuojiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, People's Republic of China
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Fu SZ, Meng XH, Fan J, Yang LL, Wen QL, Ye SJ, Lin S, Wang BQ, Chen LL, Wu JB, Chen Y, Fan JM, Li Z. Acceleration of dermal wound healing by using electrospun curcumin-loaded poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) fibrous mats. J Biomed Mater Res B Appl Biomater 2013; 102:533-42. [PMID: 24115465 DOI: 10.1002/jbm.b.33032] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/12/2013] [Accepted: 08/18/2013] [Indexed: 12/16/2022]
Abstract
This study prepared a composite scaffold composed of curcumin and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL, PCEC) copolymer using coelectrospinning technology. Incorporation of curcumin into the polymeric matrix had an obvious effect on the morphology and dimension of PCEC/curcumin fibers. The results of in vitro anti-oxidant tests and of the cytotoxicity assay demonstrated that the curcumin-loaded PCEC fibrous mats had significant anti-oxidant efficacy and low cytotoxicity. Curcumin could be sustainably released from the fibrous scaffolds. More importantly, in vivo efficacy in enhancing wound repair was also investigated based on a full-thickness dermal defect model for Wistar rats. The results indicated that the PCEC/curcumin fibrous mats had a significant advantage in promoting wound healing. At 21 days post-operation, the dermal defect was basically recovered to its normal condition. A percentage of wound closure reached up to 93.3 ± 5.6% compared with 76.9 ± 4.9% of the untreated control (p < 0.05). Therefore, the as-prepared PCEC/curcumin composite mats are a promising candidate for use as wound dressing.
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Affiliation(s)
- Shao-Zhi Fu
- Department of Oncology, the Affiliated Hospital of Luzhou Medical College, Luzhou, 646000, China
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