* 일시 : 2004. 8. 17(화), 16:00 * 장소 : 지능형정밀기계연구부(연구6동) 세미나실 * 강사 : 정희태교수(KAIST 생명화학공학과) * 담당자 : 지능형정밀기계연구부 한창수 (Tel. 042-868-7126) Surface-patterning using Carbon Nanotube Self-assemblies The chemical modification of nanotubes has shown great promise as a technique for the tailored preparation of SWNTs-based functional materials. The purification and the shortening process of SWNTs produce carboxylic acid groups at the ends and side-walls of the nanotubes, which provide reaction sites for various guest species. Here we present the self-assemblies of poly (ethylene glycol) (PEG)- grafted SWNTs in a selective solvent to form a new type of ring-like nanostructure and the SWNTs conducting arrays constructed via consecutive amidation reactions. The behavior of the PEG-grafted SWNTs resembles the aggregation behavior of self-assembled block copolymers in dilute solution. And the high-density SWNTs multilayer film showed the complete and uniform coverage for substrate and the good electric conductivity for electronic device application.