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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Development of a new detection method for carbon nanotube contamination in water

2015년 2월 26일 10시 32분 48초
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목 09시 : 00분
환경에너지 - Environmental Implication of Nanomaterials
저자 및
손아정*, Linda Mota1, Esteban Urena-Benavides1, Xiaofang Wang2, Yeomin Yoon3
이화여자대학교 환경공학과, Korea
1Auburn University, USA, Mexico
2Auburn University, USA, Korea
3University of South Carolina, USA, Korea
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승인 4건
Carbon nanotubes possess unique properties that have led to an increase in research in a wide variety of fields. This growing demand and use of carbon nanotubes poses a potential health risk and may have detrimental effects in the environment. There is a significant gap of information of the actual quantity of carbon nanotubes in the environment. However the detection methods that are specific to carbon nanotubes are very limited mainly due to the ubiquitous carbon chemistry of carbon nanotubes. In response to these deficiencies, a novel method that utilizes a structural differentiation of carbon nanotubes was developed for carbon nanotube detection in water. The specific affinity between single walled nanotubes (SWNT) and G/T alternating ssDNA was employed to capture SWNT in water. A rapid, SWNT-specific separation was obtained by the use of magnetic field. Dual fluorescent labels that are attached to sandwich ssDNA probes were used for the precise quantification. A calibration curve (r2 = 0.90) was successfully made using a range of SWNT concentration against the planar graphene that was used as a negative control. The findings of this research suggest that this method is of great sensitivity and specificity for carbon nanotube detection in aqueous environment.