Article
  • Study on the Manipulation of Physical Properties of Chitosan Scaffolds Using Mineral Oil
  • Kim JS, Jung EJ, Kim JH, Lee WK
  • Mineral Oil을 활용한 다공성 키토산 지지체의 물리적 특성 조절에 관한 연구
  • 김주승, 정은진, 김지혜, 이우걸
Abstract
In this study, various chitosan (CHT) scaffolds were prepared using acetic acid and NaOH. In addition, we performed investigation on the changes in physical properties of the scaffolds prepared using a mixture of CHT solution and span 80-containing mineral oil (MS) solution. CHT/MS ratios were set at 40/10 and 60/10. The scaffold prepared using pure CHT solution was used as a control. We evaluated the effects of CHT/MS mixing ratio on the surface and 3D structure, chemical state, recovery, porosity, swelling, and cytotoxicity of the scaffold. We observed that the fine pore formation, porosity, and swelling of the prepared scaffold increased when MS solution was used. The behavior was more pronounced when CHT/MS 60/10 was used. In osteoblast proliferation assay, any cytotoxicity was not induced due to usage of MS solution. From the result obtained in this investigation, we noticed that the physical properties of the CHT scaffold can be manipulated by using MS solution while maintaining its cytocompatibility. We expect that this technique can be further utilized in the preparation of soft tissue substitutes.

본 연구에서는 acetic acid와 NaOH를 활용하여 키토산(CHT) 지지체를 제조하였다. 또한 CHT 용액에 span80을 녹인 미네랄 오일(mineral oil) (MS) 용액을 혼합한 용액을 사용하여 제조한 지지체의 물리적 특성 변화에 관한 연구를 수행하였다. CHT/MS은 40/10과 60/10의 비율로 혼합하여 사용하였다. 순수한 CHT 용액으로만 제조한지지체는 대조군(control)으로 사용하였다. CHT/MS 혼합비율이 지지체의 표면 및 3차원 구조, 화학적 상태, 회복력, 기공도, 팽윤율 및 세포독성 등에 미치는 영향을 분석하였다. 분석결과에 의하면 CHT/MS 혼합용액을 사용하는 경우, control에 비해 미세한 기공 형성과 기공도, 지지체의 팽윤율이 증가하는 것을 확인하였다. 이러한 영향은 CHT/MS 60/10 지지체에서 더 현저하게 나타났다. 지지체에서의 조골세포 증식실험에서 MS 용액 혼합에 의한 지지체의 물리적 특성 변화는 세포독성을 유발시키지 않았다. 본 연구의 결과는 MS 용액을 활용하여 지지체의 세포적합성을 유지하면서 동시에 물리적 특성을 조절할 수 있다는 것을 확인하였다. 이 기술은 연조직 대체용 지지체 제조에도 활용할 수 있을 것으로 기대된다.

Keywords: chitosan; scaffold; porosity; swelling; spectroscopy; osteoblast; cytotoxicity

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2017; 41(5): 777-783

    Published online Sep 25, 2017

  • 10.7317/pk.2017.41.5.777
  • Received on Feb 8, 2017
  • Accepted on Apr 5, 2017