Tae Jung PARK, HoSeok PARK, Won Hi HONG, Bong Gil CHOI, Sang Yup LEE
언어
영어(ENG)
URL
https://www.earticle.net/Article/A105329
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원문정보
초록
영어
Carbon nanotubes (CNTs) have stimulated intense research activities, leading to remarkable scientific and technological advances in nanostructured materials. Although CNTs provide extraordinary mechanical, electrical, and thermal properties for numerous potential applications, it is difficult to process them due to a major drawback, i.e. poor dispersibility. Recently, the physical gels consisting of ionic liquids (ILs) and CNTs were fabricated by using imidazolium-ion-based ILs as new dispersants of CNTs. The CNT/IL bucky gel-modified electrodes are important in terms of understanding electron transfer of biomolecules. We here report the immobilization of organophosphorus hydrolase (OPH) on the multi-walled carbon nanotube (MWNT)/IL bucky gel electrode for the biosensors. The MWNT/IL bucky gels were formed by grinding the mixture of MWNTs and 1-butyl-3-methylimidazolium tetrafluoroborate (BMimBF4) with an agate mortar. After the immobilization of MWNT/IL gel, MWNT/IL/OPH electrode was obtained by immersing the modified GC electrode into OPH. The OPH immobilized on the CNT/IL bucky gel electrode surface was confirmed by SEM, EDX and UV-vis spectroscopy analysis. The interactions between ILs and OPHs were evaluated by FT-IR spectroscopy. The electrochemical properties of MWNT, MWNT/IL, MWNT/OPH, and MWNT/IL/OPH electrode were characterized by AC impedance and cyclic voltammetry. MWNT/IL/OPH electrode with effective stability and electrocatalytic performance provides a useful platform for the development of environmental biosensors [This work was supported in part by the IT Leading R&D Support Project from the Ministry of Knowledge Economy through IITA].
Tae Jung PARK [ BioProcess Engineering Research Center, Center for Systems & Synthetic Biotechnology, and Institute for BioCentury, KAIST, 335 Gwahangno, Yuseong-gu, Daejeon 305-701. ]
HoSeok PARK [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST ]
Won Hi HONG [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST ]
Bong Gil CHOI [ Department of Chemical & Biomolecular Engineering (BK21 program), KAIST ]
Sang Yup LEE [ Department of Chemical & Biomolecular Engineering (BK21 program), Department of Bio & Brain Engineering, Department of Biological Sciences, and Bioinformatics Research Center, KAIST ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동