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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fabrication of a Chemiluminescence Microfluidic Sensor on a Chip with the Co(II) Immobilized CNT-Nafion Composite to Determine Amino Acids

등록일
2012년 2월 22일 16시 51분 46초
접수번호
1357
발표코드
ANAL.P-627 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
MD.KAMRUZZAMAN, ALAM MD AL MAHMNUR, 이상학, Dang Trung Dung1
경북대학교 화학과, Korea
1경북대학교 기계공학부, Vietnam
A novel chemiluminescence (CL) sensor with a microfluidic chip system has been presented based on the immobilization of Co(II) on the functionalized carbon nanotube (CNT)-Nafion composite membrane. CNT- Nafion composite was constructed by solution casting using 5 wt% CNT in 5% Nafion solution. Co(II) was immobilized on the CNT-Nafion composite membrane by solution impregnation using CoCl2 solution as precursor. Co(II) grafted CNT-Nafion composite exhibited excellent catalytic activity towards the oxidation of luminol in the luminol-NaIO4 CL reaction. Co(II) immobilized sensor on a microfluidic chip was fabricated by a soft-lithographic procedure using polydimethyl siloxane (PDMS) with a 500 nm wide, 250 nm deep and 82 mm long microchannel. L-phenylalanine (L-PA) was sensed by the CL reaction between luminol and NaIO4 in the presence of Co(II) immobilized MWCNT-Nafion composite on the PDMS chip. The fabricated CL sensor on the PDMS chip provides sensitive determination of L-PA with long lifetime without any special pretreatment of the sample. Due to the ease of operation and excellent catalytic properties of the proposed sensor, it may be a potential amino acid sensor to determine amino acid in real samples.

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