INVESTIGATION OF THE STRUCTURAL FEATURES OF COLLAGEN-CONTAINING MATERIALS WITH DIFFERENT DEGREES OF MATURITY
Authors:
1.
KNITU
2.
KNITU
3.
KNITU
4.
KNITU
5.
Kazan National Research Technological University
6.
Kazan National Research Technological University
Type:
Article
Pages:
from 170
to 174
Status:
In work
Language:
Russian
Keywords:
COLLAGEN, DEGREE OF MATURITY, AVIAN DERMIS, IR SPECTROSCOPY, X-RAY STRUCTURAL ANALYSIS, ELECTRON MICROSCOPY, POROMETRY, PRIMARY, SECONDARY, TERTIARY, QUATERNARY STRUCTURE
Abstract (English):
Due to the uniqueness of its fibrous structure, collagen is able to give body tissues elasticity, strength and elasticity. As technology developed, a variety of materials based on it appeared, which were widely used in various spheres of human life. Currently, collagen-containing materials are used in an unchanged (native) and modified state. The most popular sources of collagen are animals and fish objects. In this work, the structural features of native collagen-containing materials (chicken dermis) with different degrees of maturity (40 and 540 days) were investigated. The dermis of birds is thin (300 to 600 microns), it lacks sweat and sebaceous glands, as a result of which the skin of birds is very dry, but there is a well-developed subcutaneous fatty fiber. The dermis has two layers: superficial and deep. The first layer consists of collagen fibers gathered in small bundles and contains a large number of blood vessels, the second layer consists of thick collagen bundles. The fibers in the dermis are predominantly parallel to the skin surface. A wide range of studies (IR spectroscopy, X-ray spectroscopy, X-ray analysis, porometry microscopy) made it possible to carry out a comparative assessment of the structure of materials and to establish that the study of samples of unaltered collagen-containing materials with different levels of maturity due to the lability of their structure and the presence of excess fat is significantly difficult. Nevertheless, it was found that the sample with high maturity (540 days) is characterized by more formed (compact and finely cellular) and stable structural organization relative to the sample with low maturity (40 days). Therefore, when developing the technology of dressing collagen-containing material, due to its transfer from the native state to the altered state, it is necessary to pay more attention to the removal of excessive amount of fat in the preparatory processes and to adjust the treatment modes (consumption of chemical materials, duration of exposure) depending on the degree of maturity of the dermis.
Due to the uniqueness of its fibrous structure, collagen is able to give body tissues elasticity, strength and elasticity. As technology developed, a variety of materials based on it appeared, which were widely used in various spheres of human life. Currently, collagen-containing materials are used in an unchanged (native) and modified state. The most popular sources of collagen are animals and fish objects. In this work, the structural features of native collagen-containing materials (chicken dermis) with different degrees of maturity (40 and 540 days) were investigated. The dermis of birds is thin (300 to 600 microns), it lacks sweat and sebaceous glands, as a result of which the skin of birds is very dry, but there is a well-developed subcutaneous fatty fiber. The dermis has two layers: superficial and deep. The first layer consists of collagen fibers gathered in small bundles and contains a large number of blood vessels, the second layer consists of thick collagen bundles. The fibers in the dermis are predominantly parallel to the skin surface. A wide range of studies (IR spectroscopy, X-ray spectroscopy, X-ray analysis, porometry microscopy) made it possible to carry out a comparative assessment of the structure of materials and to establish that the study of samples of unaltered collagen-containing materials with different levels of maturity due to the lability of their structure and the presence of excess fat is significantly difficult. Nevertheless, it was found that the sample with high maturity (540 days) is characterized by more formed (compact and finely cellular) and stable structural organization relative to the sample with low maturity (40 days). Therefore, when developing the technology of dressing collagen-containing material, due to its transfer from the native state to the altered state, it is necessary to pay more attention to the removal of excessive amount of fat in the preparatory processes and to adjust the treatment modes (consumption of chemical materials, duration of exposure) depending on the degree of maturity of the dermis.
Keywords:
COLLAGEN, DEGREE OF MATURITY, AVIAN DERMIS, IR SPECTROSCOPY, X-RAY STRUCTURAL ANALYSIS, ELECTRON MICROSCOPY, POROMETRY, PRIMARY, SECONDARY, TERTIARY, QUATERNARY STRUCTURE
COLLAGEN, DEGREE OF MATURITY, AVIAN DERMIS, IR SPECTROSCOPY, X-RAY STRUCTURAL ANALYSIS, ELECTRON MICROSCOPY, POROMETRY, PRIMARY, SECONDARY, TERTIARY, QUATERNARY STRUCTURE
