90° Peel off Tests of Tissue Engineered Osteochondral Constructs : A New Method to Determine the Osteochondral Integration
Joint Authors
Daniels, A. U.
Francioli, Silvia
Bürgin, Vivienne
Wirz, Dieter
Schulenburg, Jörg
Source
International Journal of Tissue Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-31
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
One promising treatment of localized osteochondral defects in the knee joint may be the implantation of in vitro tissue-engineered osteochondral constructs.
A crucial aspect of this kind of osteochondral construct is the bonding between the bone-scaffold and scaffold-based chondral layer.
Here, a 90° peel off test is proposed as an appropriate method to measure the integration of cartilage to bone in osteochondral constructs for different primary methods of bonding the cartilage scaffold to the bone scaffold, with and without seeded chondroblasts.
The method was developed and then tested on tissue-engineered constructs.
The force/displacement data obtained allow determination of both the maximum force and the total energy required to separate the two layers.
The tests showed good reproducibility and good discrimination between measurements as a function of seeding times.
Average maximum peel-off forces varied between 10 mN for fibrin glue only to 575 mN for constructs with cells after four weeks of incubation.
Linear regression of the area under the curve (AUC) as a function of maximum force shows a high correlation between the two parameters with R2 = 0.97.
The main limitation of the test is that the data provide only a modest ability to decide how uniform the bond is over the area between the two layers.
American Psychological Association (APA)
Bürgin, Vivienne& Daniels, A. U.& Francioli, Silvia& Schulenburg, Jörg& Wirz, Dieter. 2014. 90° Peel off Tests of Tissue Engineered Osteochondral Constructs : A New Method to Determine the Osteochondral Integration. International Journal of Tissue Engineering،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-464391
Modern Language Association (MLA)
Bürgin, Vivienne…[et al.]. 90° Peel off Tests of Tissue Engineered Osteochondral Constructs : A New Method to Determine the Osteochondral Integration. International Journal of Tissue Engineering No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-464391
American Medical Association (AMA)
Bürgin, Vivienne& Daniels, A. U.& Francioli, Silvia& Schulenburg, Jörg& Wirz, Dieter. 90° Peel off Tests of Tissue Engineered Osteochondral Constructs : A New Method to Determine the Osteochondral Integration. International Journal of Tissue Engineering. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-464391
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464391