中文摘要：

用便宜、容易地可得到的先锋的灵巧的策略成功地象强壮的光致发光一样与一致形状和小粒子尺寸为稀土元素的做的六角形的阶段 NaYF4 nanocrystals 的合成被开发了。由于他们的光性质和好 biocompatibility，这些多色 nanocrystals 成功地为癌症房间成像被用作一个简历标签。这个新奇合成方法应该也能够对象 YF3 和 LaF3 那样的另外的氟化物 nanocrystals 的合成的扩展。

英文摘要：

A facile strategy using cheap and readily available precursors has been successfully developed for the synthesis of rare-earth doped hexagonal phase NaYF4 nanocrystals with uniform shape and small particle size as well as strong photoluminescence. Due to their optical properties and good biocornpatibility, these multicolor nanocrystals were successfully used as a bio-tag for cancer cell imaging. This novel synthetic method should also be capable of extension to the synthesis of other fluoride nanocrystals such as YF3 and LaF3.