掺杂型ZnS纳米晶的发光性质及其在生物检测方面的研究进展  

Luminescent Properties of Doped Type ZnS Nanocrystals and Research Progress on Their Applications in Biological Detection

作　　者：杜鸿延[1] 魏志鹏[1] 楚学影[1] 方铉[1] 方芳[1] 李金华[1] 王菲[1] 王晓华[1] 

机构地区：[1]长春理工大学理学院,长春130022

出　　处：《材料导报》2013年第13期20-25,共6页Materials Reports

基　　金：国家自然科学基金(61006065;61076039;61204065;41205193);高功率半导体激光国家重点实验室基金(9140C310101120C031115);高等学校博士学科点专项科研基金(21022216110002;20102216110001;20112216120005);吉林省自然科学基金(20101546);吉林省科技发展计划(20090139;20090555;20121816;201201116);吉林省教育厅项目(2011JYT05;2011JYT10;2011JYT11);长春市国际科技合作计划项目(2010CC02)

摘　　要：主要围绕ZnS纳米晶的制备、掺杂和表面修饰剂所引起的光学性质以及生物分子检测等问题展开了一系列的讨论。由于纳米晶体表面晶面的定向生长,控制着纳米晶形貌的变化,因此综述了多种制备纳米晶的方法。系统总结了对纳米晶进行掺杂而引起了本征发射波长的变化,并对其进行表面修饰从而达到改变其荧光性质的目的。国内外研究表明,对纳米晶进行表面修饰,可以利用表面修饰制备出量子产率高,易于生物分子偶联的水溶性的掺杂型ZnS纳米晶,因此可在生物标记、示踪、检测等多个领域发挥重要的作用,为在生物医学领域中的应用奠定基础,最后展望了ZnS纳米晶未来的发展前景。Extensive discussions on ZnS nanocrystals are carried out mainly focusing on the preparation, do- ping, optical properties caused by surface modification agent, and biological molecular detection. In consideration of the domination of orientated growth of nanocrystalline surface crystal on the morphology of nanocrystalline, a variety of preparation methods of nanocrystalline are summarized. The regulation of intrinsic emission wavelength of nano- crystals through doping, and changing the fluorescent properties of nanocrystals through surface modification are in- troduced. It is pointed out that the domestic and oversea investigations have indicated the validity of obtaining ZnS nanocrystals with high quantum productivity, convenience for biological molecule coupling, and solubility in water through surface modification. They can perform great significance in biological maker, tracer, detection, and other fields, and lay the foundation for their biomedical applications. Finally, the future development of ZnS nanocrystals is prospected.

关 键 词：ZNS 掺杂 荧光 生物检测 

分 类 号：O469[理学—凝聚态物理]