您的位置: 专家智库 > >

国家自然科学基金(20273007)

作品数:4 被引量:11H指数:2
相关作者:徐晓伟牟其勇鲍俊萍范慧俐李玉萍更多>>
相关机构:北京科技大学更多>>
发文基金:国家自然科学基金更多>>
相关领域:生物学医药卫生一般工业技术金属学及工艺更多>>

文献类型

  • 4篇中文期刊文章

领域

  • 1篇生物学
  • 1篇金属学及工艺
  • 1篇医药卫生
  • 1篇一般工业技术
  • 1篇理学

主题

  • 3篇SURFAC...
  • 3篇LUMINE...
  • 2篇MATERI...
  • 1篇荧光
  • 1篇荧光探针
  • 1篇生物芯片
  • 1篇生物芯片技术
  • 1篇生物学
  • 1篇探针
  • 1篇芯片技术
  • 1篇NA
  • 1篇SIO2
  • 1篇TWO
  • 1篇YB
  • 1篇GROUP
  • 1篇MATERI...
  • 1篇CONVER...
  • 1篇SOL-GE...
  • 1篇UP-CON...

机构

  • 1篇北京科技大学

作者

  • 1篇李玉萍
  • 1篇范慧俐
  • 1篇鲍俊萍
  • 1篇牟其勇
  • 1篇徐晓伟

传媒

  • 2篇Rare M...
  • 1篇材料导报
  • 1篇Journa...

年份

  • 2篇2008
  • 1篇2007
  • 1篇2003
4 条 记 录,以下是 1-4
排序方式:
上转换荧光材料在生物芯片技术中的应用被引量:7
2003年
介绍了上转换荧光材料的特点、应用和发展状况,特别是上转换荧光材料在生物芯片技术中的应用前景。分析了在生物芯片技术中理想荧光探针应具有的特性,并总结了上转换荧光探针比目前正在使用的荧光探针的优点。提出了把上转换荧光材料应用于生物芯片技术中的实施方案和需要解决的问题。
鲍俊萍徐晓伟范慧俐牟其勇李玉萍
关键词:生物芯片技术荧光探针生物学
Surface modification of an up-conversion luminescence material by overcoating with SiO_2 and its characterization被引量:2
2007年
The surface of an up-conversion luminescence material was modified by overcoating with SiOa, which was synthesized from a hydrolysis progress of telraethoxysilane (TEOS) in alkalescent condition. By analyzing the hydrolyzed mechanism of TEOS, it was found that there was not only physical adsorption but also chemical bonding between the up-conversion material and SiO2. At the same time, some adsorption bands at 1100, 475, 950, and 3500 cm^-1 were found by FI-IR, which were the characteristic bands of Si-OH and Si-O-Si. By analyzing the surface elements of the coated material by XPS, it was found that its surface only included Si, O, and C elements, and not F and Y. In the picture of XRD, there was no additional peak after surface modification, suggesting that the silica shell was amorphous. The small peak at 20 = 23° in the X-ray diffraction pattern of the coated material was caused by the amorphous SiO2 shell, and the TEM image also proved that the surface of the material was successfully modified by overcoating with SiO2. The amount of hydroxyls was then increased on the surface of the material, which made it easy to connect with other active groups.
CUI LiliLIU JieminFAN HuiliXU XiaoweiYANG MinXIAO Junping
关键词:SIO2SOL-GELLUMINESCENCE
Surface modification of up-conversion luminescence material Na[Y_(0.57)Yb_(0.39)Er_(0.04)]F_4 with hydrosulfide group被引量:2
2008年
A new method was reported for surface modification of an up-conversion luminescence material with hydrosulfide group. The factors that may influence the surface modification,such as reaction time,amount of catalyzer and modifier,and reaction solvent,were investigated. The optimal conditions were that the reaction time,the quantity of the basic catalyzer,the quantity of modifier and the volume of reaction solvent were 40 min,1.0,1.0,and 40 mL,respectively. The results indicated that hydrosulfide group content modified on the surface of up-conversion luminescence material reached to 0.1430 mmol/g,and this modified up-conversion luminescence material could be widely used in the study of structure of protein and the property of microenvironment.
Lili CuiHuili FanJunping XiaoXiaowei XuDong Su
Comparison study of two aldehyde group finishing agents in surface modification of up-conversion luminescence materials
2008年
Surface modification of up-conversion luminescence materials (Na[Y0.57Yb0.39Er0.04]F4 modified by amino groups) by grafting and modifying with aldehyde groups was studied by means of Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and emission spectrum (EM). The surface modification effect was compared using two different finishhag agents, p-phthalaldehyde and glutaraldehyde. It was found that the surface of up-conversion luminescence materials could be modified by aldehyde groups of the two finishing agents, the systematic dispersibility and the thermostability of the up-conversion luminescence material modified by p-phthalaldehyde were better than those of the material modified by glutaraldehyde, and the luminous intensity of the material modified by p-phthalaldehyde was increased. The AI (the ratio of the suspended segmental quality in the specimen to the total mass of the specimen) of the material modified by p-phthalaldehyde was higher than that of the material modified by glutaraldehyde. It is obviously seen that the embellishment effect of p-phthalaldehyde as a finishing agent was better than that of glutaraldehyde. In addition, the reasons why p-phthalaldehyde is a good finishing agent are also explained.
CUI LiliFAN HuiliXIAO JunpingXU Xiaowei
关键词:UP-CONVERSIONLUMINESCENCE
共1页<1>
聚类工具0