Journal
CARBOHYDRATE POLYMERS
Volume 87, Issue 2, Pages 1589-1595Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.09.059
Keywords
Biological tissue; Crosslinking; Alginate dialdehyde; Biological properties; Cytotoxicity
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Funding
- Department of Public Health of Sichuan Province [100194]
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Biological tissues must be chemically fixed before they can be implanted in humans. To overcome the cytotoxicity of the current chemical reagents used to fix bioprostheses, a naturally occurring crosslinking agent, alginate dialdehyde (ADA), was employed to fix biological tissues in this feasibility study. In this work, the crosslinking characteristics and the cytotoxicity of ADA-fixed biological tissues were investigated. The results indicated that ADA-fixed tissues are in possession of the fixation index and mechanical strength comparable to glutaraldehyde-fixed counterparts and superior to polyepoxy-fixed counterparts. The histological examination confirmed that the natural structure of the tissues preserved well after ADA fixation. Moreover, the results obtained in the MTT study further indicated that the cytotoxicity of ADA-fixed tissues was significantly lower than that of glutaraldehyde-fixed and polyepoxy-fixed tissues. In conclusion, the results of this vitro study demonstrate that ADA is an effective agent in the fixation of biological tissue. (C) 2011 Elsevier Ltd. All rights reserved.
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