scholarly journals Evolution of Statistic Moments of 2D-Distributions of Biological Liquid Crystal Net Mueller Matrix Elements in the Process of Their Birefringent Structure Changes

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
A. G. Ushenko ◽  
I. Z. Misevich ◽  
V. Istratiy ◽  
I. Bachyns'ka ◽  
A. P. Peresunko ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Physiological State ◽  
Mueller Matrix ◽  
Matrix Elements ◽  
Structure Changes ◽  
Matrix Image ◽  
Biological Liquid ◽  
Thick Layers ◽  
Skewness And Kurtosis ◽  
Crystal Net

This research is aimed to investigate the reliability of Mueller-matrix differentiation of birefringence change of optically thick layers of biological liquid crystals at the early stages of the change in their physiological state. This is performed by measuring the set of skewness and kurtosis values of Mueller matrix image of the phase element M44 in various points of the object under investigation.

scholarly journals The Interconnection between the Coordinate Distribution of Mueller-Matrixes Images Characteristic Values of Biological Liquid Crystals Net and the Pathological Changes of Human Tissues

2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
Oleg V. Angelsky ◽  
Yuriy A. Ushenko ◽  
Alexander V. Dubolazov ◽  
Olha Yu. Telenha
Keyword(s):  
Liquid Crystals ◽  
Human Tissue ◽  
Mueller Matrix ◽  
Human Tissues ◽  
Matrix Elements ◽  
Pathological Changes ◽  
Crystal Network ◽  
Characteristic Points ◽  
Biological Liquid ◽  
Characteristic Values

We have theoretically grounded conceptions of characteristic points observed in coordinate distributions of Mueller matrix elements for a network of human tissue biological crystals. The interrelation between polarization singularities of laser images inherent to these biological crystals and characteristic values of above matrix elements is found. We have determined the criteria for statistical diagnostics of pathological changes in the birefringent structure of biological crystal network by using myometrium tissue as an example.

scholarly journals The Degree of Mutual Anisotropy of Biological Liquid Crystals Net during the Diagnostics of Human Tissues Birefringence

2010 ◽  
Vol 2010 ◽  
pp. 1-9 ◽  
Author(s):  
Oleg V. Angelsky ◽  
Yuriy A. Ushenko
Keyword(s):  
Liquid Crystals ◽  
Physiological State ◽  
Biological Tissues ◽  
Human Tissues ◽  
Protein Fibrils ◽  
Biological Liquid ◽  
Statistic Approach

To characterize the degree of consistency of parameters of the optically uniaxial birefringent liquid crystals (protein fibrils) nets of biological tissues a new parameter-complex degree of mutual anisotropy is suggested. The technique of polarization measuring the coordinate distributions of the complex degree of mutual anisotropy of biological tissues is developed. It is shown that statistic approach to the analysis of complex degree of mutual anisotropy distributions of biological tissues of various morphological and physiological states and optical thicknesses appears to be more sensitive and efficient in differentiation of physiological state in comparison with investigations of complex degree of mutual polarization of the corresponding laser images.

scholarly journals Biological liquid crystal elastomers

2002 ◽  
Vol 357 (1418) ◽  
pp. 155-163 ◽  
Author(s):  
D. P. Knight ◽  
F. Vollrath
Keyword(s):  
Liquid Crystal ◽  
The Novel ◽  
Dragline Silk ◽  
New Class ◽  
Detailed Explanation ◽  
Fibrillar Collagens ◽  
Biological Liquid ◽  
Orb Web ◽  
Liquid Crystal Elastomers ◽  
Orb Web Spiders

Liquid crystal elastomers (LCEs) have recently been described as a new class of matter. Here we review the evidence for the novel conclusion that the fibrillar collagens and the dragline silks of orb web spiders belong to this remarkable class of materials. Unlike conventional rubbers, LCEs are ordered, rather than disordered, at rest. The identification of these biopolymers as LCEs may have a predictive value. It may explain how collagens and spider dragline silks are assembled. It may provide a detailed explanation for their mechanical properties, accounting for the variation between different members of the collagen family and between the draglines in different spider species. It may provide a basis for the design of biomimetic collagen and dragline silk analogues by genetic engineering, peptide- or classical polymer synthesis. Biological LCEs may exhibit a range of exotic properties already identified in other members of this remarkable class of materials. In this paper, the possibility that other transversely banded fibrillar proteins are also LCEs is discussed.

Sign in / Sign up

Export Citation Format

Share Document