Volume 133, Issue 25
Article

Evaluation of alginate dialdehyde as a suitable crosslinker on modifying porcine acellular dermal matrix: The aggregation of collagenous fibers

Shichen Zhu

Shichen Zhu

College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070 China

The Sub Center (Wuhan) of National Technology and R&D of Staple Freshwater Fish Processing, Wuhan, 430070 China

Shichen Zhu and Zhipeng Gu contributed equally to this work.

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Zhipeng Gu

Zhipeng Gu

Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University, Xiaoguwei Island, Panyu District, Guangzhou, 510006 China

Shichen Zhu and Zhipeng Gu contributed equally to this work.

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Yang Hu

Corresponding Author

Yang Hu

College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070 China

The Sub Center (Wuhan) of National Technology and R&D of Staple Freshwater Fish Processing, Wuhan, 430070 China

Correspondence to: Y. Hu (E-mail: [email protected])Search for more papers by this author
Weihua Dan

Weihua Dan

Department of Biomass Chemistry and Engineering, Sichuan University, No.24 South Section 1, Yihuan Road, Chengdu, Sichuan, 610065 China

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Shanbai Xiong

Shanbai Xiong

College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070 China

The Sub Center (Wuhan) of National Technology and R&D of Staple Freshwater Fish Processing, Wuhan, 430070 China

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First published: 22 March 2016
Citations: 18

ABSTRACT

Porcine acellular dermal matrix (PADM) has been investigated widely as a natural biomaterial. However, the success of PADM has been limited by insufficient stability and poor physicochemical properties. In our work, alginate dialdehyde (ADA) with various oxidation degrees (OD = 25%, 45%, and 65%) were explored to modify PADM, while glutaraldehyde (GA), dehydrathermal treatment (DHT), and carbodiimide (EDC) were used as the control. The efficacy of ADA on modifying PADM increased along with the rising of oxidation degree. The ADA (OD = 65% and 45%) groups showed better mechanical and thermal stability, crosslink density, and resistance to enzymatic degradation than ADA (OD = 25%) and DHT + EDC group. Meanwhile, the structure of PADM crosslinked by ADA (OD = 45% and 65%) were maintained largely. Further, ADA (OD = 45%) group revealed better cytocompatibility than DHT + EDC, ADA (OD = 65%) and GA group. Considering the balance of cytocompatibility and physicochemical behavior, ADA (OD = 45%) was more suitable as a natural derived crosslinker to modify PADM in tissue engineering. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43550.

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