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INVESTIGATION OF INFLUENCE OF MODIFICATION OF ARABINOGALACTAN MATRIX ON THE PROCESS OF FORMATION OF METALPOLYMER NANOBIOCOMPOSITES BY METHOD OF EXCLUSION CHROMATOGRAPHY

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Background. Galactose containing plant polysaccharides have wide range applications as biologically active substances. Study of formation regularity of nanoparticles in arabinogalactan solutions, possibility of regulation their size characteristics in change of synthesis conditions allow to get fundamental information about nanoparticle condition of substance. Purpose. Study of the modification of arabinogalactan matrix in the formation of metal-containing nanobiocomposites by analyzing the change in its molecular mass characteristics under the influence of noble metal nanoparticles formed in its matrix. Methodology. Exclusion liquid chromatography, transmission electron microscopy, atomic absorption spectrometry. Originality. For the first time, the use of the method of exclusion chromatography in studying the functions of the arabinogalactan matrix during the formation of metal-containing nanobiocomposites is a productive approach and makes it possible to reveal the essential regularities of the nanoscale state. Findings. With the help of transmission electron microscopy, the dimensions of metal nanoparticles and the macromolecules of arabinogalactan were established, which made it possible to classify the polysaccharide as nanoscale also. It is shown that the change in the polydispersity of arabinogalactan occurs as a result of its redox interaction with noble metal ions and the simultaneous process of alkaline destruction. Highlights: - exclusion chromatography is an express method for studying the formation of the nanoscale state of arabinogalactan with metals; - the process of stabilization of growing nanoparticles during the formation of a dispersed phase causes aggregation of macromolecules of arabinogalactan.

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# nanoparticles# нанозарралар# наночастицы# арабиногалактан# эксклюзионная жидкостная хромато# нанобиокомпозиты# полидисперсность# молекулярная масса.# эксклюзив суюқлик хроматографияс# нанобиокомпозитлар# полидисперслик# молекуляр масса.# arabinogalactan# exclusion liquid chromatography# nanobiocomposites# polydispersity# molecular mass.

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https://eroi.uz/11.0030/A0220-0041

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