In vitro hydrolysis and magnesium release of poly(d,l-lactide-co-glycolide)-based composites containing bioresorbable glasses and magnesium hydroxide
ABSTRACT Magnesium is important for both bone growth and cartilage formation. However, the postoperative intake of antibiotics such as quinolones may cause a reduction in magnesium levels in tissue. The addition of magnesium to scaffolds may therefore be beneficial for the regeneration of osteochond...
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Published in | Journal of applied polymer science Vol. 132; no. 41; pp. np - n/a |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Blackwell Publishing Ltd
05.11.2015
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | ABSTRACT
Magnesium is important for both bone growth and cartilage formation. However, the postoperative intake of antibiotics such as quinolones may cause a reduction in magnesium levels in tissue. The addition of magnesium to scaffolds may therefore be beneficial for the regeneration of osteochondral defects. In this study, porous composite scaffolds were produced by gas foaming of poly(d,l‐lactide‐co‐glycolide) (PLGA) rods with magnesium‐containing bioresorbable glasses and magnesium hydroxide as fillers. The in vitro hydrolytical degradation of the composite scaffolds in Tris buffer was followed over a 10‐week period. Mg2+ was released in a controlled manner from the scaffolds with varying release profiles between the different materials. Higher glass content resulted in a reduced mass loss compared to scaffolds with lower glass content. As a result of the foaming method, the scaffolds shrank initially, without evidence that the addition of hydrophilic fillers would decrease the initial shrinkage. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42646. |
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Bibliography: | istex:B05E3B2B7B71DC2AA6E96162487B4544DBE4ABFC ark:/67375/WNG-5X7GV7Z1-3 Swedish Cultural Foundation in Finland ArticleID:APP42646 Medicinska Understödsföreningen Liv och Hälsa Finnish Funding Agency for Technology and Innovation (Tekes) - No. 3110/31/08 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-8995 1097-4628 |
DOI: | 10.1002/app.42646 |