| Porous and dense poly(L-lactic acid) and poly(D,L-lactic acid-co-glycolic acid) scaffolds: in vitro degradation in culture medium and osteoblasts culture. | |
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MedLine Citation:
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PMID: 15747184 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The use of bioresorbable polymers as a support for culturing cells has received special attention as an alternative for the treatment of lesions and the loss of tissue. The aim of this work was to evaluate the degradation in cell culture medium of dense and porous scaffolds of poly(L-lactic acid) (PLLA) and poly(D,L-lactic acid-co-glycolic acid) (50:50) (PLGA50) prepared by casting. The adhesion and morphology of osteoblast cells on the surface of these polymers was evaluated. Thermal analyses were done by differential scanning calorimetry and thermogravimetric analysis and cell morphology was assessed by scanning electron microscopy. Autocatalysis was observed in PLGA50 samples because of the concentration of acid constituents in this material. Samples of PLLA showed no autocatalysis and hence no changes in their morphology, indicating that this polymer can be used as a structural support. Osteoblasts showed low adhesion to PLLA compared to PLGA50. The cell morphology on the surface of these materials was highly dispersed, which indicated a good interaction of the cells with the polymer substrate. |
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Authors:
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S H Barbanti; A R Santos; C A C Zavaglia; E A R Duek |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of materials science. Materials in medicine Volume: 15 ISSN: 0957-4530 ISO Abbreviation: J Mater Sci Mater Med Publication Date: 2004 Dec |
Date Detail:
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Created Date: 2005-03-04 Completed Date: 2005-06-30 Revised Date: 2010-12-03 |
Medline Journal Info:
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Nlm Unique ID: 9013087 Medline TA: J Mater Sci Mater Med Country: United States |
Other Details:
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Languages: eng Pagination: 1315-21 Citation Subset: IM |
Affiliation:
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Department of Materials Engineering, Faculty of Mechanical Engineering, State University of Campinas (UNICAMP), P.O. Box 6122, 13083-970, Campinas, SP, Brazil. samuel@fem.unicamp.br |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biodegradation, Environmental Calorimetry, Differential Scanning Cell Line Culture Media Glycolates / chemistry* Lactic Acid / chemistry* Mice Microscopy, Electron, Scanning Osteoblasts / cytology*, ultrastructure Polymers / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Culture Media; 0/Glycolates; 0/Polymers; 0/polylactic acid-polyglycolic acid copolymer; 26100-51-6/poly(lactic acid); 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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