Preparation of Novel Silica Nanoparticles with Controllable Fluorescence Intensity from Porphyrin-Bridged Silsesquioxane
- ISSN号:1001-604X
- 期刊名称:《中国化学:英文版》
- 时间:0
- 分类:TQ127.2[化学工程—无机化工] TB332[一般工业技术—材料科学与工程]
- 作者机构:[1]School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China, [2]The Academy of Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China, [3]The Campus Hospitals of Harbin Institute of Technology, Harbin, Heilongjiang 150001, China, [4]Department of Oncology, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, Heilongjiang 150040, China, [5]College of Chemistry, Jilin University, Changchun, Jilin 130023, China
- 相关基金:Project supported by the Fundamental Research Funds for the Central Universities, the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology (HIT IBRSEM. 2009. 003), the Fundamental Research Funds for the Central University (HIT ICRST, 2010012) and the Intergovernmental Cooperation Projects between China and Russian (CR 12-41).
关键词:
纳米二氧化硅, 倍半硅氧烷, 荧光强度, 可控制备, 卟啉, 二氧化硅纳米粒子, 制备方法, 调节控制, self-direct dissociation, porphyrin-bridged silsesquioxane, porphyrin-doped silica nanoparticles
中文摘要:
为可控制的荧光紧张的一个改进的班的制造的一个方法,高度敏感并且 photostable 卟啉做的硅石 nanoparticles (PDSNP ) 被表明。PDSNP 的荧光紧张能被细微地调节衔接卟啉的 silsesquioxane 的先锋的自我分裂的时间控制。卟啉很好在系统由于共有原子价附件被驱散进硅石矩阵,完全因此避免熄灭的卟啉漏和荧光完成。有一个狭窄的尺寸分布式的区域和常规球形的结构的结果的 PDSNP 能被达到。
英文摘要:
A method for the fabrication of an improved class of controllable fluorescence intensity, highly sensitive and photostable porphyrin doped silica nanoparticles (PDSNPs) was demonstrated. The fluorescence intensity of PDSNPs could be controlled by finely tuning self-dissociated time of the precursor of porphyrin-bridged silsesquioxane. Porphyrin was well dispersed into the silica matrix due to the covalent attachment in the system, thus entirely avoiding the porphyrin leakage and fluorescence quenching effects. The resultant PDSNPs with a narrow size-distributed region and a regular spherical structure can be attained.