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A Study on the Immobilization of Biomolecules on Poly(acrylic acid)-grafted MWCNTs Prepared by Radiation-Induced Graft Polymerization  

Jung, Chan-Hee (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Lee, Byoung-Min (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Hwang, In-Tae (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Choi, Jae-Hak (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Nho, Young-Chang (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
Hong, Sung-Kwon (Department of Polymer Science and Engineering, Chungnam National University)
Publication Information
Polymer(Korea) / v.34, no.2, 2010 , pp. 150-153 More about this Journal
Abstract
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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