Self-assembly of meso-tetrakis(4-N-ethylpyridiniurmyl) porphyrin and tetracarboxyl-phenyl calix[4]arene
| Autor: | Chuan Dong, Yingli Wei, Xiliang Guo, Shaomin Shuang, Xiao‐Hua Sun, Man Shing Wong |
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| Rok vydání: | 2005 |
| Předmět: |
Porphyrins
Radiation Dose-Response Relationship Drug Molecular Structure Radiological and Ultrasound Technology Chemistry Biophysics Fluorescent spectra Hydrogen-Ion Concentration Photochemistry Fluorescence Porphyrin chemistry.chemical_compound Spectrometry Fluorescence Polymer chemistry Spectrophotometry Ultraviolet Radiology Nuclear Medicine and imaging Self-assembly Calixarenes Absorption (chemistry) Electrostatic interaction |
| Zdroj: | Journal of Photochemistry and Photobiology B: Biology. 81:190-194 |
| ISSN: | 1011-1344 |
| DOI: | 10.1016/j.jphotobiol.2005.08.001 |
| Popis: | Novel dimeric capsules are generated from the noncovalent assembly of 5, 10, 15, 20-tetrakis(4-N-ethylpyridiniurmyl)prophyrin (TEPyP) and tetracarboxyl-phenyl calix[4]arene. The self-assembly system was investigated based on UV–Vis absorption and fluorescent spectra. The factors affecting the interaction process including pH and concentration were examined in detail. The association constants between TEPyP and calix[4]arene were determined by the nonlinear least squares fit. The results showed that the basic medium is favourable to the interaction and electrostatic interaction was determinate in the processes of self-assembly process. The related mechanism was discussed. |
| Databáze: | OpenAIRE |
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