| Yazarlar |
Katrin Veldboer
|
Yunus KARATAŞ
Türkiye |
|
Torsten Vielhaber
|
|
Uwe Karst
|
|
Hans-Dieter Wiemhöfer
|
| Özet |
| Cyclic phosphazenes with positively charged substituents were investigated as surface modifiers for lanthanide phosphate nanoparticles. Cyclotriphosphazenes bearing aromatic (1, 2) and aliphatic (3-6) substituents with terminal tertiary amino functions have been synthesized and subsequently quaternized by treatment with methyl iodide. In subsequent tests, their influence as surface modifiers for the lanthanide phosphate-based nanoparticles was analysed with respect to the resulting particle solubility and the degree of surface interaction. While an interaction of the completely quaternized cyclic phosphazenes 2 and 4 with the nanoparticles leads to an agglomeration, stable nanocrystal-linker complexes in methanol could be formed with the compounds 5 and 6. Aromatic functions were not suitable due to interference with the UV absorbance of the nanocrystals, while aliphatic side chains allowed a good fluorescence detection of the nanocrystals with UV excitation without any loss of intensity as compared to the untreated particles. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA. |
| Anahtar Kelimeler |
| Nanoparticles | Phosphazenes (cyclic) | Surface modification |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Zeitschrift für anorganische und allgemeine Chemie |
| Dergi ISSN | 0044-2313 |
| Dergi Tarandığı Indeksler | SSCI |
| Makale Dili | İngilizce |
| Basım Tarihi | 10-2008 |
| Cilt No | 634 |
| Sayı | 12 |
| Sayfalar | 2175 / 2180 |
| Doi Numarası | 10.1002/zaac.200800297 |
| Makale Linki | http://doi.wiley.com/10.1002/zaac.200800297 |
| Atıf Sayıları | |
| SCOPUS | 6 |
| Google Scholar | 10 |
