Iron-containing nanocomposites based on humic substances and their biological activity
Keywords:
biological activity, nanocomposites, goethite, humic substance, iron oxide, humic acids, structure, phaseAbstract
Research relevance: biological activity is one of the most important properties of nanocomposites. Nanocomposites based on hectorite and humic substances are iron-containing nanocomposites combined with organic macromolecules, exhibiting numerous properties and high structural complexity, which can be applied in biomedicine as diagnostic and therapeutic tools. Therefore, studying the bioactivity of nanocomposites based on hectorite and humic substances is a relevant research direction. Objectives of the study based on the study of biological activity of nanocomposites based on hectorite and humic substances. Mechanisms of formation of hectorite nanocomposites with organic substances were determined. Research results: interactions between water-soluble humic acids (HA) and Fe(oxy)hydroxides (α-FeOOH, α-Fe₂O₃, polymerized amorphous iron phases) were studied. The mechanisms of formation of hectorite nanocomposites with organic substances were identified. Iron oxides strongly interact with the negative surface charge of humic acids. Nanohybrid composites of hectorite (α-FeOOH) with carbon-containing organic substances (activated carbon, humic acids) have been obtained. The toxicity of these synthesized iron-containing preparations was determined, and their biological activity was investigated.
References
Жаркынбаева, Р.А. Железосодержащие нанокомпозиты на основе гуминовых веществ [Текст] / Р.А. Жаркынбаева, А.С. Маметова, Х.И. Гаффорова, Ж.Д. Абдуллаева - Бюллетень науки и практики, Нижневартовск. 2021;10(7):25-30.
Cheng, W. Effects of organic matter-goethite interactions on reactive transport of nalidixic acid: Column study and modeling [Текст] / W. Cheng, L. Zhou, R. Marsac, J.F. Boily, K. Hanna. - Environ. Res. 2020;191:110187.
Gilbert, F. Synthesis of goethite from Fe(OH)2 precipitates: Influence of Fe(II) concentration and stirring speed [Текст] / F. Gilbert, P. Refait, F. Lévêque, C. Remazeilles, E. Conforto. - J. Phys. Chem. Solids. - 2008;69:2124-2130.
Jaiswal, A. Synthesis, characterization and application of goethite mineral as an adsorbent [Текст] / A. Jaiswal, S. Banerjee, R. Mani, M.C. Chattopadhyaya. - J. Environ. Chem. Eng. - 2013;1:281-289.
Cornell, R.M. The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses modeling [Текст] / R.M. Cornell. - John Wiley & Sons; Weinheim, Germany. - 2013.
Сивакова, Л.Г. Биологическая активность гуминовых веществ [Текст] / Л.Г. Сивакова. – Сборник материалов II Всероссийская конференция «Химия и химическая технология: достижения и перспективы» 20–21 ноября. – 2014; Кемерово [Текст] / Л.Г. Сивакова. - ФГБОУ ВПО «Кузбас. гос. техн. ун-т им. Т.Ф. Горбачева».
Жоробекова, Ш.Ж. Методы анализа гуминовых веществ [Текст] / Ш.Ж. Жоробекова, Р.П. Королева. - Бишкек: Илим. - 2011. 165 с. ГОСТ 4453–74 «Уголь активный осветляющий древесный порошкообразный. Технические условия».
Mohammed, I. Acid–base properties of humic acid from soils amended with different organic amendments over 17 years in a long-term soil experiment [Текст] / Mohammed, I., Kodaolu, B., Audette, Y., Smith, D.S.,Longstaffe, J.-Soil Science Society of America Journal. – 2025;89: e70074.
Орехов, Д.И. Флуоресцентный анализ как инструмент оценки физиологического состояния деревьев в различных условиях загрязнения в г. Москве [Текст] / Д.И. Орехов, Г.А. Калабин. - Вестник РУДН Серия экология и безопасность жиизнедеятельности. - 2013. - №5. - С.1-15.
Moura, O.V.T., Humic foliar application as sustainable technology for improving the growth, yield, and abiotic stress protection of agricultural crops, A review. [Текст] / [O.V.T. Moura, R.L.L. Berbara, D.F.O. Torchia, et al.]. - J Saudi Soc Agric Sci. – 2023;22(8):493-513.
