Cited by 75Bone Tissue Engineering MaterialsElectrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applications

Nanosized CaP-silk fibroin-PCL-PEG-PCL/PCL based bilayer membranes for guided bone regeneration

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Abstract

Guided bone regeneration (GBR) concept has been developed to prevent the formation of non-functional scar tissue layer on defect site by undertaking barrier role. In this study, a new bilayer membrane which consisted of one layer of electrospun silk fibroin/PCL-PEG-PCL incorporating nanocalcium phosphate (SPCA)1 and one layer of PCL membrane was developed for GBR. To improve the osteoconductivity of membranes, nanosized calcium phosphate particles synthesized by Flame Spray Pyrolysis method were incorporated into membranes at 10% (wt) (SPCA10) and 20% (wt) (SPCA20) of the polymer content. The structural and chemical analyses revealed the well-integrated two layers of membranes with a total thickness of ca 100μm. In the regenerative layer, the highly porous mesh structure had a thickness of 12.6μm with randomly oriented fibers having diameters around 760nm, and nanoparticles dispersed homogenously. The mechanical test results showed remarkable improvement on the tensile strength of membranes with incorporation of nanoparticles. Higher water affinity of nanoCaP included membranes was proved by lower contact angle values and higher percent water uptake capacity. Biomineralization assay revealed that nucleation and growth of apatites around fibers of SPCA10 and SPCA20 were apparent while on SPCA0 apatite minerals were barely detected after 10days. Human dental pulp stem cells (DPSC) were seeded on electrospun layer of the bilayer membranes for biocompatibility and osteo-compatibility study. Increasing nanoCaP amount resulted in higher cell adhesion, proliferation, ALP activity and calcium deposition on membranes. These overall results confirmed the biocompatibility and potential applicability of proposed membranes for GBR treatments.

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Crossref · 10.1016/j.msec.2017.06.016

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Authors
Türkkan, S., Pazarçeviren, A. E., Keskin, D., Machin, N. E., Duygulu, Ö., & Tezcaner, A.
Affiliations
  • Middle East Technical University (TR)
  • Atilim University (TR)
  • TÜBİTAK Marmara Research Center (TR)
Corresponding author
Tezcaner, Ayşen
Venue
Materials Science and Engineering: C
Publisher
Elsevier BV
Published
2017-11
Volume
80
Pages
484-493
ISSN
0928-4931 (ISSN-L)
OpenAlex
W2721730800
Cited by
75
References
40
Citations by year
2026: 4 · 2025: 7 · 2024: 7 · 2023: 5 · 2022: 12 · 2021: 11 · 2020: 15 · 2019: 8 · 2018: 6
FWCI
3.58
Type
journal article
Language
en
Open access
Locations
  • Materials Science and Engineering C (publishedVersion)
  • PubMed (publishedVersion)
  • OpenMETU (Middle East Technical University) (submittedVersion, cc-by-nc-nd)
Funders
  • METU (BAP-07-02-2013-00)
  • Scientific and Technological Research Council of Turkey (106M232)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
  • Physical Sciences › Materials Science › Biomaterials › Silk-based biomaterials and applications
Keywords
guided bone regeneration, bilayer membranes, silk fibroin, polycaprolactone, PEG, calcium phosphate nanoparticles, flame spray pyrolysis, electrospun membranes, osteoconductivity, biomineralization, dental pulp stem cells, osteogenic differentiation, tensile strength, water absorption, biocompatibility
MeSH terms
Biocompatible Materials, Bone Regeneration, Calcium Phosphates, Fibroins, Humans, Polyesters, Polyethylene Glycols, Nanostructures

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