Volume 28, Issue 9 pp. 1107-1114
Research article

Hemostasis mechanism and applications of N-alkylated chitosan sponge

Yuchen Huang

Yuchen Huang

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

These authors contributed equally to this work.Search for more papers by this author
Longbao Feng

Longbao Feng

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

These authors contributed equally to this work.Search for more papers by this author
Yi Zhang

Yi Zhang

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

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Liumin He

Liumin He

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

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Changyong Wang

Changyong Wang

Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences, Beijing, 100850 China

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Jiake Xu

Jiake Xu

School of Pathology and Laboratory Medicine, University of Western Australia, Perth, WA, 6009 Australia

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Jianping Wu

Jianping Wu

3D Imaging and Bioengineering Laboratory, the Department of Mechanical Engineering, Curtin University, Perth, WA, Australia

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Thomas Brett Kirk

Thomas Brett Kirk

3D Imaging and Bioengineering Laboratory, the Department of Mechanical Engineering, Curtin University, Perth, WA, Australia

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Rui Guo

Corresponding Author

Rui Guo

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

Correspondence to: Rui Guo, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.

E-mail: [email protected]

Wei Xue, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institute, Guangzhou 510632, China.

E-mail: [email protected]

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Wei Xue

Corresponding Author

Wei Xue

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, 510632 China

Department of Biomedical Engineering, Jinan University, Guangzhou, 510632 China

Key Laboratory of Functional Protein Research of Guangdong Higher Education Institute, Guangzhou, 510632 China

Correspondence to: Rui Guo, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.

E-mail: [email protected]

Wei Xue, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institute, Guangzhou 510632, China.

E-mail: [email protected]

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First published: 12 January 2017
Citations: 51

Abstract

Chitosan (CHI) is a versatile biological material that is well known for its hemostatic properties. This preliminary study evaluated several self-assembling hydrophobically modified chitosan (HM–CHI) sponges to determine their efficacy on hemostasis. Fourier transform infrared (FT-IR) spectroscopy was used to determine the successful graft of dodecyl groups onto the nitrogen atoms of CHI molecules. A platelet aggregation assay revealed that HM–CHI accelerated the platelet aggregation rate. Fluorescence spectroscopy showed that the HM–CHI changed the structure of fibrinogen in blood. Activated partial thromboplastin time, prothrombin time, fibrinogen time, and thromboelastographic assays were used to explore the effect of HM–CHI on the autologous blood coagulation pathway. Finally, a hemostatic sponge was made with HM–CHI and freeze-dried zeolite composite film and was applied to the rat femoral artery hemostasis model. A hemostasis time of 86 ± 5 sec was achieved, which was significantly better than the one composed with pure CHI. The experimental results of the HM–CHI hemostatic materials are inspiring and will encourage the research and development of such materials. HM–CHI may be a strong candidate as a safe and effective hemostatic material. Copyright © 2017 John Wiley & Sons, Ltd.

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