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Development of asymmetric resorbable membranes for guided bone and surrounding tissue regeneration.

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Title: Development of asymmetric resorbable membranes for guided bone and surrounding tissue regeneration.
Authors: Fidalgo, C.1, Rodrigues, M. A.1, Peixoto, T.1, Lobato, J. V.2,3, Santos, J. D.4, Lopes, M. A.4 malopes@fe.up.pt
Source: Journal of Biomedical Materials Research, Part A. Aug2018, Vol. 106 Issue 8, p2141-2150. 10p.
Abstract: Abstract: Membranes design for guided tissue engineering have been studied to aid in cell viability and function as tissue barriers. Two asymmetric resorbable membranes for guided bone regeneration (GBR) were produced: chitosan/pectin/poly‐caprolactone (PECm) and poly(vinyl alcohol)/polyethylenimine/poly(ethylene glycol) (PVAm). Both membranes were characterized by physical, chemical, mechanical, degradation rate, and in vitro biological assessment. Scanning electron microscopy (SEM) confirmed the membranes asymmetry, in which PECm asymmetry is given by roughness and chemical composition, while PVAm's only by differences in porosity. Fourier transform infrared spectroscopy (FTIR) identified chemical groups and bonds between polymers. Both sides of PVAm revealed to be hydrophobic, whereas the PECm presented one side with higher hydrophobicity than the other. In vitro biological assessment disclosed that PECm presented a higher cell adhesion growth pattern than PVAm, where it seemed to occur a delay in proliferation due to initial low cell adhesion. Both developed membranes are suitable for GBR, since both membranes fulfil the requirements to be used as a tissue barrier. The PECm has an additional role in cell viability that was not observed in the PVAm. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2141‐2150, 2018. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Biomedical Materials Research, Part A is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Development of asymmetric resorbable membranes for guided bone and surrounding tissue regeneration.
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  Data: <searchLink fieldCode="AR" term="%22Fidalgo%2C+C%2E%22">Fidalgo, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rodrigues%2C+M%2E+A%2E%22">Rodrigues, M. A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Peixoto%2C+T%2E%22">Peixoto, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lobato%2C+J%2E+V%2E%22">Lobato, J. V.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Santos%2C+J%2E+D%2E%22">Santos, J. D.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Lopes%2C+M%2E+A%2E%22">Lopes, M. A.</searchLink><relatesTo>4</relatesTo><i> malopes@fe.up.pt</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Biomedical+Materials+Research%2C+Part+A%22">Journal of Biomedical Materials Research, Part A</searchLink>. Aug2018, Vol. 106 Issue 8, p2141-2150. 10p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Membranes design for guided tissue engineering have been studied to aid in cell viability and function as tissue barriers. Two asymmetric resorbable membranes for guided bone regeneration (GBR) were produced: chitosan/pectin/poly‐caprolactone (PECm) and poly(vinyl alcohol)/polyethylenimine/poly(ethylene glycol) (PVAm). Both membranes were characterized by physical, chemical, mechanical, degradation rate, and in vitro biological assessment. Scanning electron microscopy (SEM) confirmed the membranes asymmetry, in which PECm asymmetry is given by roughness and chemical composition, while PVAm's only by differences in porosity. Fourier transform infrared spectroscopy (FTIR) identified chemical groups and bonds between polymers. Both sides of PVAm revealed to be hydrophobic, whereas the PECm presented one side with higher hydrophobicity than the other. In vitro biological assessment disclosed that PECm presented a higher cell adhesion growth pattern than PVAm, where it seemed to occur a delay in proliferation due to initial low cell adhesion. Both developed membranes are suitable for GBR, since both membranes fulfil the requirements to be used as a tissue barrier. The PECm has an additional role in cell viability that was not observed in the PVAm. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2141‐2150, 2018. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Biomedical Materials Research, Part A is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/jbm.a.36420
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        Text: English
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              Text: Aug2018
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              Y: 2018
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