Structure and degradation property of the PVA-collagen complex drug membrane / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
;
(6): 18-23, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-326991
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the structure and degradation property of the polyvinyl alcohol (PVA)-collagen complex drug membrane.</p><p><b>METHODS</b>Drug collagen membrane was complexed with PVA. The physical and chemical properties of the membrane were characterized by transmission electron microscopy, scanning electron microscope, forier transform-infrared spectroscopy and differential scanning calorimetry. Degradation experiment was performed to determine the degradation property of membrane and a degradation curve was therefor drawn.</p><p><b>RESULTS</b>The thermodynamic stability of collagen membrane was not destroyed by adding PVA. Collagen had good compatibility with PVA. Compared with collagen membrane, collagen-PVA complex membrane had smaller and evener pores. Adding PVA decreased the degradation rate of membrane.</p><p><b>CONCLUSIONS</b>PVA-collagen membrane has better microstructure and antidegradation property than collagen membrane.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polyvinyl Alcohol
/
Biocompatible Materials
/
Chemistry
/
Collagen
/
Spectroscopy, Fourier Transform Infrared
/
Membranes
Limits:
Humans
Language:
Chinese
Journal:
Acta Academiae Medicinae Sinicae
Year:
2004
Type:
Article
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