Journal article
Effects of fabrication parameters on viscoelastic shear modulus of 2,3-dialdehydecellulose membranes-Potential scaffolds for vocal fold lamina propria tissue engineering
Journal of biomedical materials research. Part A, Vol.88A(3), pp.680-688
03/01/2009
DOI: 10.1002/jbm.a.31921
PMID: 18335531
Abstract
Porous 2,3-dialdehydecellulose (2,3-DAC) membranes were investigated for use as a synthetic scaffold for engineering vocal fold-like tissues. Two criteria of this application are (i) the viscoelastic shear properties of the scaffold should be controllable in the range of vocal fold tissues and (ii) scaffolds should remain biomechanically stable to withstand vibrational stresses in a bioreactor. Porous 2,3-DAC membranes were fabricated from methylolcellulose by water-induced cellulose regeneration, with or without sodium chloride leaching, followed by periodate oxidation. They were freeze-dried and ethylene oxide-sterilized. Different degrees of oxidation were obtained on reacting with sodium metaperiodate for different time points. Rheological studies were performed to investigate the effect of freeze-drying, porosity, degree of oxidation, sterilization, and incubation time on elastic and viscous shear moduli, G' and G '', respectively, for frequencies 0.01-10 Hz. Freeze drying increased G' and G '', while increased porosity and degree of oxidation reduced G' and G ''. Sterilization had no effect on viscoelasticity. When incubated in Dulbecco's minimum essential medium at 37 ''degrees C, membranes with 6-7% and 19-20% oxidation disintegrated after 7 and 3 days, respectively, while membranes with 3-4% oxidation showed little viscoelastic change over a period of 42 days. The upper frequency limit of rheologic measurement was a limitation of the study and should be addressed in future investigations. (c) 2008 Wiley Periodicals, Inc. J Biomed Mater Res 88A: 680-688, 2009
Details
- Title: Subtitle
- Effects of fabrication parameters on viscoelastic shear modulus of 2,3-dialdehydecellulose membranes-Potential scaffolds for vocal fold lamina propria tissue engineering
- Creators
- Priyanka RoyChowdhury - University of IowaSarah Klemuk - University of IowaIngo Titze - University of IowaVijay Kumar - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of biomedical materials research. Part A, Vol.88A(3), pp.680-688
- Publisher
- Wiley
- DOI
- 10.1002/jbm.a.31921
- PMID
- 18335531
- ISSN
- 1549-3296
- eISSN
- 1552-4965
- Number of pages
- 9
- Grant note
- F31DC008047 / NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD) 2 R01 DC004224; F31 DC008047-01; F31 DC008047; F31 DC008047-02 / NIDCD NIH HHS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD)
- Language
- English
- Date published
- 03/01/2009
- Academic Unit
- School of Music; Pharmacy; Communication Sciences and Disorders
- Record Identifier
- 9984719746102771
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