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首页> 外文期刊>Journal of optoelectronics and advanced materials >Synthesis of zinc sulfide semiconductor nanoparticles by coprecipitation method for biological diagnostics
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Synthesis of zinc sulfide semiconductor nanoparticles by coprecipitation method for biological diagnostics

机译：共沉淀法合成硫化锌半导体纳米粒子用于生物诊断

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摘要

Zinc Sulfide nanoparticles of the cubic zinc blende structure with the average crystallite size of about 3-5 nm were synthesized using a coprecipitation method and were stabilized with Sodium Tripolyphosphate. Then the room-temperature photoluminescence (PL) of zinc sulfide (ZnS) nanoparticles were investigated. Surface modification was carried out by linking Thioglycolic acid to the nanoparticles' surface in order to enable linking nanoparticles up with biological components such as Biotin. Luminescence spectra observations of nanoparticles illustrated a blue emission band in the range of 370-430 nm as a result of Copper dopant. Further more, Spectroscopy analysis of resulted complex proved that the emission intensity of nanoparticles decreases due to the increasing of Biotin amount. Therefore, the amount of biological material can easily be detected through measuring optical properties of these biological fluorescent markers.
机译：使用共沉淀法合成具有约3-5 nm平均晶粒尺寸的立方锌共混物结构的硫化锌纳米颗粒，并用三聚磷酸钠稳定化。然后研究了硫化锌（ZnS）纳米粒子的室温光致发光（PL）。通过使巯基乙酸与纳米颗粒的表面连接来进行表面修饰，以使纳米颗粒与诸如生物素的生物成分连接起来。纳米粒子的发光光谱观察表明，由于铜掺杂剂，蓝色发射带在370-430 nm范围内。此外，对所得复合物的光谱分析证明，由于生物素含量的增加，纳米粒子的发射强度降低。因此，通过测量这些生物荧光标记的光学性质，可以容易地检测生物材料的量。

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