ISSN:
0392-6737
Schlagwort(e):
Biooptics (effects of microwaves
;
light
;
laser radiation and other nonionizing electromagnetic waves
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Summary In order to clarify the effect of 13 GHz microwave irradiation upon model membranes, vibrational Raman spectroscopy was performed for multilamellar dispersions of dipalmitoylphosphatidylcholine, before and after irradiation. Raman spectra of the phospholipid dispersions were recorded for the C−H ((2800⊢3100)cm−1) and the C−C ((1050⊢1150)cm−1) stretching modes, above the transition temperatureT m of the phospholipid, before and after microwave irradiation. An intensity comparison between the irradiated and nonirradiated sample revealed an increase in the intensity ratioI 2930/I 2880 and a small perturbation in the C−C stretching region, induced by microwaves. It seems reasonable to assume that microwave irradiation brings about a change in lateral chain-chain interactions, which is possibly due to induced changes at bilayer curvature.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02456760
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