CAJ | 학술논문

本文利用微波辐射方法,在水相中直接快速制备,得到了谷胱甘肽修饰的水溶性ZnSe纳米晶,并详细讨论了制备条件(溶液中离子配比、PH值、反应温度和时间等)对结果的影响.在最佳条件下制备所得的ZnSe纳米晶,发射波长在360nm～410nm之间可调,荧光光谱半峰宽最小值可达到21nm.另外,进一步利用光辐射方法,对ZnSe纳米晶进行表面修饰,将其荧光量子效率提高到了55%.本文制备方法具有过程简单、经济的优点,此外,这种水溶性ZnSe纳米晶具有优良的光谱性能和良好的生物相溶性,可使其作为荧光探针进一步应用在生物领域.
본문이용미파복사방법,재수상중직접쾌속제비,득도료곡광감태수식적수용성ZnSe납미정,병상세토론료제비조건(용액중리자배비、PH치、반응온도화시간등)대결과적영향.재최가조건하제비소득적ZnSe납미정,발사파장재360nm～410nm지간가조,형광광보반봉관최소치가체도21nm.령외,진일보이용광복사방법,대ZnSe납미정진행표면수식,장기형광양자효솔제고도료55%.본문제비방법구유과정간단、경제적우점,차외,저충수용성ZnSe납미정구유우량적광보성능화량호적생물상용성,가사기작위형광탐침진일보응용재생물영역.
In this paper, a novel method is presented for the rapid synthesis of glutathione (GSH) -capped ZnSe nanocrystals in aqueous phase assisted with microwave irradiation. The as-prepared ZnSe nanocrystals have tunable fluorescence emissions between 360 and 410 nm with narrow full width at half maximum (FWHM)of 21 nm. Moreover, the luminescent properties were greatly improved through photo-chemical treatment. Their photoluminescence quantum yields (PLQY) reached as high as 55% after illu-mination. The key synthesis parameters (molar ratio of reagents, pH values, reaction temperature, and time) are fully discussed. The facile synthesis of glutathione-capped ZnSe nanocrystals is free of compli-cated manipulations and cost-effective. Furthermore, the water-dispersed ZnSe nanocrystals with high luminescence and favorable biocompatibility allow their potential applications in biological imaging as fluo-rescent labels.