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  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Highly sensitive fluorescent sensor based on novel coordinated amphiphilic polythiophene nanohybrids for triacetone triperoxide explosive detection

2019년 2월 13일 11시 18분 39초
ANAL.P-290 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 19일 (금요일) 11:00~12:30
포스터 분석구두발표
Analytical Chemistry
저자 및
Salah Mahmoud Tawfik Ahmed, Yong-ill Lee*
Department of Chemistry, Changwon National University, Korea
Triacetone triperoxide (TATP), one of the most dangerous primary explosives, has emerged as an explosive of choice for terrorists in recent years. A new strategy for the detection of TATP is developed by utilizing amphiphilic polythiophene-coated CdTe QDs (P1QDs) and Hg2+ ion. The emission of P1QDs is found to be quenched in the presence of Hg2+ ion by electron transfer. Upon addition of the TATP, the quencher (Hg2+ ion) has been removed from the surface of P1QDs owing to the strong interactions between TATP and metal ions (Hg2+ ion), which leads to significant fluorescence recovery of P1QDs. The detection limit for TATP is 87 µg/L. The simultaneous possession of high sensitivity and selectivity could enable this sensor to be potentially applicable for ultrasensitive and rapid detection trace of TATP in real samples. Keywords: amphiphilic polythiophene nanohybrids, metal ions, fluorescence recovery, triacetone triperoxide (TATP), real samples