分化簇(CD)抗原是在白细胞和与免疫系统相关的其他细胞上表达的细胞表面分子。在生理学上,CD分子能以多种方式发挥作用,通常作为细胞重要的受体或配体,可启动信号级联反应进而改变细胞行为,有些CD蛋白则与细胞传讯无关,但有着其他功能,如细胞黏附、细胞激活或细胞抑制。例如:CD24调控B细胞增殖和分化;CD274(PD-L1)是...
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The size of the critical cluster is explained by the thermodynamic properties of the system and by the amount of interface misfit strain energy of CdTe lattice with respect to the substrate. The films were deposited at a substrate temperature of 250, 300, 350 and 400 掳C, the incubation ...
cluster are calculated,and the change of the binding energy and the△~2E with n is studied.It is found when n is 5 and 8,the structure is more stability,while n is 6 and 9,the structure is less stability;the change of the binding energy with n indicates the size effect of cluster....
the absorption cross section might play a dominant role in increasing the relative PL intensities of the larger-sized gNCs in the cluster (see Fig.3d). With a high laser power to excite multiple gNCs in the cluster, we tentatively assume that there is no preference for the largest or smal...
In addition to the stoichiometry variation, the formation of the nanoparticle cluster is indicative of the destruction of the core/shell structure on the top of the nano- wires. This ''exposed'' structure facilitates the significant increase in the photoluminescence intensity because of the co-...
After the CdCl2 heat treatment, the clustershaped grains in the CdS thin film increased in size and their boundaries became faint. XRD results show that the crystallinity improved and the crystalline size increased from 15 to 42 nm. The resistivity of the CdS single layer decreased from 3.87 ...
pH值对化学沉积制备CdS薄膜性质的影响
以玻碳电极为基底,电聚合一层表面均匀的带正电性的聚天青Ⅰ膜,再通过静电作用吸附一层带负电性的具有大比表面积的纳米硫化镉来固定纳米金和辣根过氧化物酶(HRP)的复合物,制备出性能良好的过氧化氢生物传感器。 更多例句>> 4) Nano-CdS 纳米硫化镉 例句>> 5...
沸石基质中CdS团簇的Raman光谱及量子尺寸效应 Raman spectra and quantum size effects of CdS clusters in zeolite matrix;