DOI QR코드

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Mechanical and Biological Characteristics of Reinforced 3D Printing Filament Composites with Agricultural By-product

  • Kim, Hye-Been (Department of Biosystems Engineering, Kangwon National University) ;
  • Seo, Yu-Ri (Department of Biosystems Engineering, Kangwon National University) ;
  • Chang, Kyeong-Je (Department of Biosystems Engineering, Seoul National University) ;
  • Park, Sang-Bae (Department of Biosystems Engineering, Seoul National University) ;
  • Seonwoo, Hoon (Department of Biosystems Engineering, Seoul National University) ;
  • Kim, Jin-Woo (Department of Biological and Agricultural Engineering and Institute for Nanoscience and Engineering, University of Arkansas) ;
  • Kim, Jangho (Department of Rural and Biosystems Engineering, Gwangju, Chonnam National University) ;
  • Lim, Ki-Taek (Department of Biosystems Engineering, Kangwon National University)
  • 투고 : 2017.06.28
  • 심사 : 2017.08.01
  • 발행 : 2017.08.31

초록

Scaffolds of cell substrates are biophysical platforms for cell attachment, proliferation, and differentiation. They ultimately play a leading-edge role in the regeneration of tissues. Recent studies have shown the potential of bioactive scaffolds (i.e., osteo-inductive) through 3D printing. In this study, rice bran-derived biocomposite was fabricated for fused deposition modeling (FDM)-based 3D printing as a potential bone-graft analogue. Rice bran by-product was blended with poly caprolactone (PCL), a synthetic commercial biodegradable polymer. An extruder with extrusion process molding was adopted to manufacture the newly blended "green material." Processing conditions affected the performance of these blends. Bio-filament composite was characterized using field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy (EDX). Mechanical characterization of bio-filament composite was carried out to determine stress-strain and compressive strength. Biological behaviors of bio-filament composites were also investigated by assessing cell cytotoxicity and water contact angle. EDX results of bio-filament composites indicated the presence of organic compounds. These bio-filament composites were found to have higher tensile strength than conventional PCL filament. They exhibited positive response in cytotoxicity. Biological analysis revealed better compatibility of r-PCL with rice bran. Such rice bran blended bio-filament composite was found to have higher elongation and strength compared to control PCL.

키워드

과제정보

연구 과제번호 : Cooperative Research Program for Agriculture Science & Technology Development

연구 과제 주관 기관 : National Research Foundation of Korea (NRF), Rural Development Administration, Kangwon National University

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피인용 문헌

  1. 3D-Printed Scaffolds with Reinforced Poly (Lactic Acid)/Carbon Nanotube Filaments Based on Melt Extrusion vol.44, pp.2, 2019, https://doi.org/10.1007/s42853-019-00011-3