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Characterization and Preparation of Three-Dimensional-Printed Biocompatible Scaffolds with Highly Porous Strands

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The highly porous structure and hydrophilic surface of tissue-engineered scaffolds have proven to be effective for cell attachment. In this study, we fabricated a polycaprolactone/pluronic F127 (PCL/F127) composite scaffold using a three-dimensional (3D) printing system; the mechanical properties, porosity, and hydrophilicity of the PCL/F127 scaffold was compared to a polycaprolactone (PCL) scaffold. Both PCL and PCL/F127 scaffolds exhibited uniform interconnected strands under scanning electron microscopy observation. The PCL scaffold exhibited no pores in its strands; however, the PCL/F127 scaffold included nano- (˜200 nm) and micropores. Compared with the PCL scaffold, the PCL/F127 scaffold had a hydrophilic surface (contact angle measurement ≈0°). Although the PCL/F127 scaffold (4.07 ± 0.11 MPa) had a lower compressive strength than the PCL scaffold (5.09 ± 0.10 MPa), the surface of the PCL/F127 scaffold was fully covered by cells due to its enhanced surface properties. These results indicated that our developed scaffolds may be useful for rapid tissue repair in biomedical engineering.
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Keywords: 3D-Printing; Hydrophilicity; Polycaprolactone; Porosity; Scaffold

Document Type: Research Article

Affiliations: 1: Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea 2: Department of Otorhinolaryngology, Head and Neck Surgery, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea 3: Department of Advanced Materials, Hannam University, 70 Hannam-ro, Daedeok-gu, Daejeon 34430, Republic of Korea 4: Department of Mechanical, Robotics and Energy Engineering, Dongguk University, 30 Pildong-ro 1-gil, Jung-gu, Seoul 04620, Republic of Korea

Publication date: 01 November 2016

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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