The paper describes briefly biography and well-known achievements of academician Yuriy Tretyakov, the founder and dean of Materials Science Department, head of inorganic chemistry division of Chemistry Department of Moscow State University, leader of synergy laboratory of General and Inorganic Chemistry Institute of Russian Academy of Sciences.

In the paper, a bibliometric analysis of publications of Yu.D.Tretyakov in different areas is performed.

The present article is devoted to the β → α phase transformation of Са3(РО4). This phase transformation is low-rate, first-order reconstructive transition, so α−Ca3(PO4)2 can be obtained in the course of low-rate cooling (ca. 5˚С/min). Transformation α → α’ is a high-rate, first-order deformation phase transition; such a fact indicates that α’−Ca3(PO4)2 cannot be obtained even by quenching.

In this work, a preparation procedure of reactionary bonded material formed from Ca₃(PO₄)₂ and water under different conditions is discussed with respect to its microstructure and mechanical properties.

The paper analyses the effect of silver nanoparticles on structural integrity of erythrocytes in hemolysis depending on nanoparticle size and morphology. It is shown than smaller nanoparticles might cause erythrocyte destruction while chloride ions seem to slow down such a process.

The studies concerning photocatalytic properties of nanocrystalline ceria and ceria-based materials appear to be controversial. Moreover, photocatalytic properties of nanocrystalline ceria-based solid solutions still remain unstudied. In this paper, we have performed synthesis and detailed study of nanocrystalline Ce _1−x Gd_xO_2−z(x = 0,1; 0,15; 0,2) samples in a model reaction of crystal violet dye photodecomposition.

Cerium dioxide is a unique material which is promising for biomedical applications. The vast majority of currently existing methods of synthesis results in CeO ₂ formation in the form of nanopowders. However such powders are useless as biomedical preparations because their exact dosage is nearly impossible. In this paper, we have offered a facile method of ceria stable sols synthesis and investigated the effect of varying concentrations and molar ratio of initial reagents on the CeO ₂ particle size. The toxicity of ceria sols has been analyzed using Vibrio fischeri and Escheriсhia Coli bioluminescent microorganisms. Comparative studies of photocatalytic activity of ceria sols has been also performed

In present paper zinc oxide nanostructure synthesis and modification for bioanalytical applications are described. Properties of modified zinc oxide array have been studied, and original scheme for conductometric immunosensor has been proposed.

A new approach for synthesis of Cu _1−x Ni _x GeO ₃ (x = 0÷0, 15) in form of nanorods is developed. Analysis of the lattice evolution with Cu(II) percentage showed a change of the cell parameters that corresponds to the theoretical simulation completely. Doping with nickel leads to a rise of dopant concentration in the solid solution.

For the first time, ultradispersed cathode materials LiNi _0.4 Mn _0.4 Co _0.2 O ₂ were obtained from freeze dried precursors with different anionic composition. The thermal decomposition of freeze drying precursors was carried out at 800–950 ◦C. By using XRD and SEM techniques, it was shown that particle size, crystallinity and cation ordering of Ni ²⁺ and Li ⁺ ions enhance with increasing thermal treatment temperature up to 900 ◦C. It was established that LiNi _0.4 Mn _0.4 Co _0.2 O ₂ powders obtained from nitrate precursor at 900 ◦C possess the highest degree of crystallinity and cation ordering