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학술발표회초록보기

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제112회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Impact of L-Cysteine on fluorescent Properties of CdTe QDs and its reactivation of degenerate fluorescence

등록일
2013년 8월 29일 16시 59분 53초
접수번호
1198
발표코드
ANAL.P-521 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
김잔디, B.T.Huy, 이용일*
창원대학교 화학과, Korea
In this research, we synthesized L-Cysteine capped with CdTe quantum dots (CdTe@Cys) in aqueous solution and achieved what we were expected. The first one is stability. The second one is functionalized surface with bio-materials. The interactions between CdTe@Cys were characterized by fourier transform infrared (FT-IR), photoluminescence (PL), transmission elctron microscopy (TEM), confocal microscopy and antibacterial test. We found the optimized condition for preparing CdTe@Cys. The intensity of PL results were affected by under the influence of ratio of Cd:Te:L-Cysteine, pH value, chemical stability of CdTe@Cys. Moreover, the CdTe@Cys can be reactivated by easy technique through addition of L-Cysteine. The PL intensity and lifetime of L-Cysteine capped with CdTe QDs increased noticeably when the cysteine solution was added to original samples. So, we tried to conjugate QDs with the E.coli cell and observed an image of fluorescene microscope of the attached cell. In addition to this, addition of L-Cysteine result on the reduced toxicity of CdTe.

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