Preparation and antithrombogenicity of oxidated low molecular weight heparin-antithrombin complex coated-polyvinyl chloride tubing.
- Author:
Peng LUO
1
;
Weiyong LIU
;
Chun YANG
;
Hua ZHOU
;
Ruijun CAO
;
Jian YANG
Author Information
1. Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China.
- Publication Type:Journal Article
- MeSH:
Anticoagulants;
chemical synthesis;
pharmacology;
Coated Materials, Biocompatible;
chemical synthesis;
pharmacology;
Extracorporeal Circulation;
instrumentation;
Heparin, Low-Molecular-Weight;
chemistry;
pharmacology;
Humans;
Polyvinyl Chloride;
chemistry;
Surface Properties
- From:
Journal of Biomedical Engineering
2011;28(1):90-94
- CountryChina
- Language:Chinese
-
Abstract:
Based on non-enzymatic protein glycated reaction, the sodium periodate-oxidated low molecular weight heparin-antithrombin covalent complex (SPLMWATH) was produced. By using polyethyleneimine-glutaraldehyde bonding technique, polyvinyl chloride (PVC) tubings were coated with SPLMWATH, heparin and low molecular weight heparin (LMWH). Spectrophotometry and dynamic clotting time experiment were used to determine the synthetic ratio of SPLMWATH, graft density, coating leaching ratio and to evaluate the antithrombogenicity of different coating on the PVC tubings. The results showed that the synthetic ratio of SPLMWATH was approximately 55%, and compared with heparin coating and LMWH coating, the graft density of SPLMWATH coating on the PVC tubing was smaller, but its coating stability and antithrombogenicity were significantly better than that of heparin coating and LMWH coating on the PVC tubings.
