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D Bourgoin

Publications and source records attributed to D Bourgoin.

8 recordsLinked to original sources
PubMed1983

Contribution of intercellular links to ultrasonic absorption of liver tissue.

The method discussed aims to characterize the ultrasonic absorption of liver tissues between 3 and 8.75 MHz by the slope of its linear variation with frequency. A transmission measuring device has been used and a data processing system has directly calculated this slope, which is reduced when the strength of intercellular links are lessened by mild treatment with trypsin, although the cells are left intact. This was performed on three batches of Wistar rats and the effect is explained mainly by reduction of the amplitude of relaxation processes dissipating energy in the cells.

Animals↗
PubMed1976

[Large scale molecular organization in particles of DNA-poly-L-histidine association].

The aggregation state of desoxyrinonucleic acid (DNA)-poly-L-histidin (PLH) association depends on both salt concentration and polymerisation degree of the polypeptide. The circular dichroism of DNA associated to PLH is very different from C.D. of DNA alone, and depends on the way in which the mixing has been done. These important modifications of the spectrum have been attributed to a large scale variable organization in the particles of the aggregate.

Animals↗