Chlorophyll-Lipid-Interactions in Monomolecular Layers
Mixed monolayers containing chlorophyll a and dim yristoyllecithin (DML) have been investigated by simultaneous thermodynamic, fluorescence and absorption spectroscopic measurements. It has been shown that the solubility limit of chlorophyll a in the fluid, as well as in the solid lipid matrix, is a...
| Published in: | Zeitschrift für Naturforschung C |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Walter de Gruyter GmbH
1983
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1515/znc-1983-11-1221 http://www.degruyter.com/view/j/znc.1983.38.issue-11-12/znc-1983-11-1221/znc-1983-11-1221.xml https://www.degruyter.com/document/doi/10.1515/znc-1983-11-1221/xml https://www.degruyter.com/document/doi/10.1515/znc-1983-11-1221/pdf |
| Summary: | Mixed monolayers containing chlorophyll a and dim yristoyllecithin (DML) have been investigated by simultaneous thermodynamic, fluorescence and absorption spectroscopic measurements. It has been shown that the solubility limit of chlorophyll a in the fluid, as well as in the solid lipid matrix, is above 20 mol%. This contrasts to previous findings for pheophytin a containing monolayers and indicates the existance of an interaction between the phospholipid head group and the central Mg atom. A fluorescence decrease on solidifying the monolayer was observed and it is suggested that it is due to an enhanced self quenching as a consequence of the reorientation of the porphyrin rings, accompanying the phase transition |
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