Today, the number of diseases related to the immunity of the human body is increasing. Diagnosis of such diseases is of paramount importance in medical practice. It is possible to diagnose diseases of human immunity by analyzing human biological fluids. In this paper, we consider the method of laser correlation spectroscopy and optical microscopy for the study of the self-organized blood serum films for medical diagnostics purposes. Experimental results shown that, the addition of the toxoid in the blood serum changes the structure of the film and dynamics of agglomerating and the size of the agglomeration. Thus, in this work, we have shown that employing the methods of laser correlation spectroscopy and optical microscopy of dehydrated films of biological fluids, it is possible to analyze the state of human immunity.
Biomolecular electronic elements attract at present great attention of researchers. The search for the materials suitable for the creation of new devices and study of electrical and dielectric properties of these materials are important problem. This article presets studies of dielectric loss tangent of albumin protein water solution. Measurements of the dependence of dielectric loss tangent on frequency in the range 25–106 Hz were performed. The experimental results showed nonlinear dependences of the dielectric loss tangent on frequency.
At present, saliva and its properties are being actively studied. Human saliva is a unique biological material that has potential in clinical practice. A detailed analysis of the characteristics and properties of saliva is relevant for diagnostic purposes. In this paper, the properties and characteristics of saliva are studied using optoelectronic methods: dynamic light scattering, electrophoretic light scattering and optical microscopy. Mixed saliva from a healthy patient and patient with diabetes mellitus type 2 was used as an object of the study. The dynamics of the behavior of a healthy and patient with diabetes mellitus type 2 is visible according to the results obtained. All three methods confirm hypothesis of structural changes in mixed saliva in the disease of diabetes mellitus type 2.
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