Author :
Bystrov, V. ; Bystrova, N. ; Ovtchinnikova, G. ; Pirogov, Yu. ; Dekhtyar, Yu.
Author_Institution :
Inst. of Math. Problems in Biol., Acad. of Sci., Pushchino, Russia
Abstract :
The new experimental results and theoretical approaches in the bioferroelectricity field are analyzed and discussed. The earlier predicted Ferroelectric and Liquid-Crystal-Like Ferroelectric properties of a biological membrane (V. Bystrov, Ferr.Lett., 1992, v.13(6), p.127; 1997, v.27., p.87; 2000, v.27(5-6), p.147; R.Leuchtag&v.Bystrov, Ferroelectrics, 1999, v.220(3-4), p. 157), which was studied in the ion channels, now was experimentally observed in bacteriorhodopsin containing purple membrane films (I.Ermolina et al, J.Phys.Chem., 2001, v.105 (14), p. 2673). Recently bioferroelectric properties of biological objects had developed to the biomedical applications. One of this specific features is the nonlinear response on the weak actions (irradiation, external fields, various kind of nutrition etc.) in the vicinity of the critical for human organism (bifurcation) point, characterized biological object on various levels as on molecular, cell as on the whole organism level.
Keywords :
bioelectric phenomena; biomembranes; ferroelectric thin films; ferroelectricity; proteins; bacteriorhodopsin containing purple membrane films; bifurcation; bioferroelectricity; biological membrane; biomedicine; external fields; human organism; irradiation; nonlinear response; nutrition; weak actions; Biomembranes; Cooling; Dielectrics; Ferroelectric films; Ferroelectric materials; Heating; Liquid crystals; Organisms; Proteins; Temperature dependence;