For the first time in soft biological tissues found ferroelectricity

February 3, 2012 9:53

The scientists measured the electrical response of the inner wall of the aorta, inspecting it with an atomic force microscope type PFM (photo Jiangyu Li, UW).

The walls of arteries have quite a surprise for them electrical properties, set biologists from the U.S.. Perhaps the change of these properties can affect the interaction of the vessel walls with a number of substances, which means that in the long run serve as a basis for a new method of therapy.

Experimenters at the University of Washington found the ferroelectric effect in porcine aortic wall (the researchers believe that a similar phenomenon can be found in human tissue).

Still among ferroelectrics including only one biological material — some sea shells, learned in the past year. The rest of this effect is applied only to inanimate objects.

The authors say that the wall of the aorta in a number of experiments have shown and ferroelectric and piezoelectric properties. Perhaps they cause redistribution of charges can affect the interaction of the tissue with glucose or fats, and hence on the biological processes of atherosclerotic plaque deposits, for example.

"If we could manipulate the polarity of the arterial walls, if we switch to it in one way or another, we could, for example, a better understanding of the deposition of cholesterol," — says one of the study authors Li Jianguo (Jiangyu Li).

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