Optimizing the synthesis of CdS/ZnS core/shell semiconductor nanocrystals for bioimaging applications.

In this study, we report on CdS/ZnS nanocrystals as a luminescence probe for bioimaging applications. CdS nanocrystals capped with a ZnS shell had enhanced luminescence intensity, stronger stability and exhibited a longer lifetime compared to uncapped CdS. The CdS/ZnS nanocrystals were stabilized in Pluronic F127 block copolymer micelles, offering an optically and colloidally stable contrast agents for in vitro and in vivo imaging.

[Spatio-temporal distribution of TN and TP in water and evaluation of eutrophic state of Lake Nansi].

Based on the seasonally investigating data from Lake Nansi during 2010 to 2011, the spatial and temporal distribution characteristics of total nitrogen (TN) and total phosphorus (TP) in water were analyzed, and the trophic state was also assessed. The results showed that the average concentrations of TN and TP were 2.617 mg x L(-1) and 0.

[Community structure characteristics of zooplankton in Yili region of Xinjiang in summer].

In June-July 2006, investigations were made on the zooplankton in the mainstream of Yili River and its three main tributaries (Tekes River, Künes River and Kax River), two reservoirs (Qiapuqihai Reservoir and Jilintai Reservoir), intermittent waters, and ponds in Yili region of Xin-jiang. A total of 217 species belonging to 134 genera were identified, among which, Protozoa and Rotifer were the main groups, which contained 153 species (71% of the total species number) of 95 genera and 51 species (23% of the total) of 27 genera, respectively. Only 8 species of Cladocera and 5 species of Copepoda were observed.