Microwave-induced biomimetic approach for hydroxyapatite coatings of chitosan scaffolds


Bayrak G. K., Demirtas T. T., GÜMÜŞDERELİOĞLU M.

CARBOHYDRATE POLYMERS, cilt.157, ss.803-813, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 157
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.carbpol.2016.10.016
  • Dergi Adı: CARBOHYDRATE POLYMERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.803-813
  • Hacettepe Üniversitesi Adresli: Evet

Özet

Simulated body fluid (SBF) can form calcium phosphates on osteoinductive materials, so it is widely used for coating of bone scaffolds to mimic natural extracellular matrix (ECM). However, difficulties of bulk coating in 3D scaffolds and the necessity of long process times are the common problems for coating with SBF. In the present study, a microwave-assisted process was developed for rapid and internal coating of chitosan scaffolds. The scaffolds were fabricated as superporous hydrogel (SPH) by combining microwave irradiation and gas foaming methods. Then, they were immersed into 10x SBF-like solution and homogenous bone-like hydroxyapatite (HA) coating was achieved by microwave treatment at 600 W without the need of any nucleating agent. Cell culture studies with MC3T3-E1 preosteoblasts showed that microwave-assisted biomimetic HA coating process could be evaluated as an efficient and rapid method to obtain composite scaffolds for bone tissue engineering. (C) 2016 Elsevier Ltd. All rights reserved.