화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.34, No.2, 150-153, March, 2010
Export Citation
방사선 그래프트 중합에 의하여 제조된 폴리(아크릴 산)이 그래프트된 탄소나노튜브에 생체분자 고정화에 관한 연구
A Study on the Immobilization of Biomolecules on Poly(acrylic acid)-grafted MWCNTs Prepared by Radiation-Induced Graft Polymerization
정찬희1, 이병민1, 2, 황인태1, 최재학1, †, 노영창1, 홍성권2, †
  • 1한국원자력연구원 정읍방사선과학연구소 방사선공업환경연구부
  • 2충남대학교 고분자공학과
Chan-Hee Jung1, Byoung-Min Lee1, 2, In-Tae Hwang1, Jae-Hak Choi1, †, Young-Chang Nho1, and Sung-Kwon Hong2, †
  • 1Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 580-185, Korea
  • 2Department of Polymer Science and Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-701, Korea
E-mail:,
초록
본 연구에서는 방사선에 의한 그래프트 중합을 이용하여 생체분자가 고정화된 다중벽탄소나노튜브 (MWCNT)를 제조하였다. 생체분자의 고정화를 위하여 MWCNT에 아크릴 산을 그래프트 중합하였다. 열중량분석과 라만 분석을 통하여 MWCNT에 폴리(아크릴 산)이 효과적으로 그래프트 중합되었음을 확인하였다. 폴리(아크릴 산)이 그래프트 된 MWCNT에 DNA와 단백질과 같은 생체분자들을 고정화하였다. X-선 광전자 분광법과 형광분석을 통하여 생체분자들이 성공적으로 MWCNT에 도입되었음이 확인되었다.
In this research, biomolecule-immobilized multi-walled carbon nanotubes (MWCNTs) were prepared by using radiation-induced graft polymerization. For the immobilization of biomolecules, the surface of MWNCTs was functionalized by radiation-induced graft polymerization of acrylic acid. Based on the results of TGA and Raman spectroscopy it was found that acrylic acid was effectively graft-polymerized on the MWCNTs. Biomolecules such as DNA and proteins were immobilized onto the resultant poly(acrylic acid)-grafted MWCNTs. The results of the X-ray photoelectron spectroscopy and fluorescence microscopy confirmed that the biomoelcules were successfully immobilized on the poly(acrylic acid)-grafted MWCNTs.
Keywords:biomolecule;multi-walled carbon nanotube;poly(acrylic acid);radiation-induced graft polymerization
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