Liposome formation of egg lecithin and its interaction with iodine
| Autor: | Papiya Nandy, Ira Chatterjee, Benoy B. Bhowmik |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Stereochemistry
Synthetic membrane Analytical chemistry chemistry.chemical_element Iodine Models Biological Biochemistry chemistry.chemical_compound Phosphatidylcholine Spectrophotometry medicine Animals Molecular Biology Egg lecithin medicine.diagnostic_test Organic Chemistry Cell Biology Egg Yolk Blueshift chemistry Liposomes Phosphatidylcholines Absorption (chemistry) Dispersion (chemistry) |
| Zdroj: | Chemistry and Physics of Lipids. 39:271-277 |
| ISSN: | 0009-3084 |
| Popis: | The sonicated dispersion of egg lecithin (phosphatidylcholine) in water forms 1:1 molecular complex with iodine, when its concentration is above 1.6 X 10(-5) M. The thermodynamic and spectrophotometric properties of this complex have been determined. The thermodynamic values are: K (25 degrees C) = 1.6 X 10(3) 1 X mol-1, delta G degrees = -18.4 KJ X mol-1, delta H degrees = -27.4 KJ X mol-1 and delta S degrees = -30.0 J X mol-1 X deg-1. The complex shows two absorption bands: one at 293 nm, which is the charge transfer band and the other at 370 nm, which is the blue shifted visible iodine band at 460 nm in water. |
| Databáze: | OpenAIRE |
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