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Biomedical subjects

D Chapman

Publications and source records attributed to D Chapman.

At least 343 records · Page 19Linked to original sources
PubMed1968

Infrared spectra and the chain organization of erythrocyte membranes.

Changes in the intensity of the 720 cm(-1) band were followed in the infrared spectra of the human erythrocyte membrane and its total lipid extract, recorded at various temperatures. These changes are interpreted in terms of the configuration of the lipid hydrocarbon chains within the membrane. Effects of temperature, sonication, removal of lipids, and organic solvents on the amide I and II bands, associated with protein conformations, were also studied.

Amides↗
PubMed1968

Studies of chlorophyll-lipid-water systems.

Preliminary studies of the electronic absorption spectra of chlorophyll molecules in aqueous glycolipid and phospholipid dispersions are reported. The spectra show a shift for the red peak of chlorophyll of some 10 millimicrons to longer wavelength compared with the spectrum of chlorophyll in ether. Photochemical studies were carried out with cytochrome c incorporated into the aqueous layers separating the lipid bilayers.

Chemical Phenomena↗