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

제117회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Rare-earth up-converting nanoparticles modified with thiol group and flexible excited nanomaterial for bioimaging

등록일
2016년 2월 18일 16시 40분 13초
접수번호
1728
발표코드
MAT.P-434 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 21일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
Chu Thi Bich Thao, B.T.Huy, 이용일*
창원대학교 화학과, Korea
The conversion of near infrared (NIR) radiation into visible light via nonlinear optical processes, termed upconversion, has generated significant interest among researchers. Upconversion nanomaterials (UCNPs) exhibit unique luminescent properties, including high penetration into tissues, low background signals, shape emission bands.. The host material is one of the most factors for upconversion efficient. Various host materials such as fluorides, chlorides, bromides, and oxysulfides have been investigated for synthesize lanthanide-doped UCNPs. In case of YVO4, most of previous reports have focused Yb3+ and/or Er3+, Eu3+-doped YVO4. In this study, we have developed a simple, surfactant-free and efficient approach to synthesize the flexible excitation Er3+, Eu3+ and Yb3+-codoped YVO4. The prepared Yb3+,Er3+,Eu3+-codoped YVO4 were characterized by X-ray diffraction (XRD), Fourier-transform IR spectroscopy (FT-IR), scanning electron microscopy (SEM), and photoluminescence spectra. The results showed that the prepared YVO4 exhibits uniform, nanoscale size, highly luminescent intensity, and flexible excited nanomaterial (excited by UV or IR irradiation). The mechanism is proposed. The characteristics of toxicity and labeling were investigated. Keywords: upconversion, excitation, labeling, lanthanide.

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