Structural and Thermodinamic Model of Cationic Dye Adsorption on the Nanocluster Polyoxometalate Surface

This work was supported by the Russian Scientific Foundation, project № 19-73-00177

XANTHENE DYES SHELL FORMATION ONTO NANOSCALE KEPLERATE {MO132} SURFACE: NMR AND PHOTOPHYSICAL STUDIES

This work was supported by Russian Science Foundation: Project No.21-73-00311

AGGREGATION OF 1,5-DI(PYRENYL-1)PENTANE IN AQUEOUS ORGANIC MEDIA

This work was supported by Science Foundations (Grant # 21-13-00304) and Grants Council of the President of the Russian Federation (NSh-2700.2020.3

DDAO Controlled Synthesis of Organo-Modified Silica Nanoparticles with Encapsulated Fluorescent Boron Dipyrrins and Study of Their Uptake by Cancerous Cells

The design of cargo carriers with high biocompatibility, unique morphological characteristics, and capability of strong bonding of fluorescent dye is highly important for the development of a platform for smart imaging and diagnostics. In this paper, BODIPY-doped silica nanoparticles were prepared through a "one-pot" soft-template method using a sol-gel process. Several sol-gel precursors have been used in sol-gel synthesis in the presence of soft-template to obtain the silica-based materials with the most appropriate morphological features for the immobilization of BODIPY molecules. Obtained silica particles have been shown to be non-cytotoxic and can be effectively internalized into the cervical cancer cell line (HeLa). The described method of synthesis allows us to obtain silica-based carriers with an immobilized fluorescent dye that provide the possibility for real-time imaging and detection of these carriers

Physicochemical and biochemical properties of the Keplerate-type nanocluster polyoxomolybdates as promising components for biomedical use

The paper discusses the results of a research on physicochemical and biochemical properties of the Keplerate-type molybdenum-based nanocluster polyoxometalates (POMs), which show promise in the field of biomedicine as a means of targeted drug delivery, including the transport to immune privileged organs. POMs can be considered as components of releasing systems, including the long-acting ones with feedback (for controlling the drug active component release rate). POMs are promising drugs for the treatment of anemia. Also, the paper deals with the results of studies of POM effect on living systems at the molecular and cellular levels, at that of individual organs, and on the organism as a whole. The mechanism and kinetics of POM destruction and possibilities of stabilization, the oscillatory phenomena manifestation, the formation of POM conjugates with bioactive substances which can be released during the destruction of POM, with polymer components, and with indicator fluorescent dyes, as well as forecasts for further research, are considered. © 2021, ITMO University. All rights reserved.The paper was prepared in the framework of implementation of the State Assignment from the Ministry of Education and Science of the Russian Federation (Projects Nos. AAAA-A20-120061990010-7 (FEUZ-2020-0052) and AAAA-A18-118020590107-0), as well as of the Program for Increasing Competitiveness of UrFU (financially supported according to the Decree No. 211 of the Government of the Russian Federation, Contract No. 02.A03.21.0006). The research aimed at creating the long-time drug release systems with feedback was carried out within the framework of the project of the Russian Science Foundation No. 19-73-00177

Erratum to: Interaction between Dioxane and Nanocluster Polyoxomolybdates and Their Composites Containing Water-Soluble Polymers (Russian Journal of Physical Chemistry A, (2020), 94, 4, (762-771), 10.1134/S0036024420040159)

Page 766, Table 1, limiting sorption values for methanol and acetone of Mo72Fe30 should read 6 and 2, respectively: Mo72Fe30 6/–1 0.5/–0.3 2/–0.5 3.5/–4 The original article can be found online at https://doi.org/10.1134/S0036024420040159. © 2020, Pleiades Publishing, Ltd

A Top-Down Design for Easy Gram Scale Synthesis of Melem Nano Rectangular Prisms with Improved Surface Area

An unprecedented top-down design for the preparation of melem by 1 h stirring of melamine-based g-C3N4 in 80 °C concentrated sulfuric acid (95-98%) was discovered. The melem product was formed selectively as a monomer on the gram scale without the need for controlled conditions, inert atmosphere, and a special purification technique. The as-prepared air-stable melem showed a distinctive nano rectangular prism morphology that possesses a larger surface area than the melems achieved by traditional bottom-up designs making it a promising candidate for catalysis and adsorption processes. This journal is © The Royal Society of Chemistry.We appreciate the Research Council of the University of Birjand for support of this work. The equipment of the Ural Center for Shared Use "Modern nanotechnology" Ural Federal University (Reg. NO. 2968) was used with the financial support of the Ministry of Science and Higher Education of the RF (Project NO. 075-15-2021-677)

Electrotransport, sorption, and photochemical properties of nanocluster polyoxomolybdates with a toroidal structure

The electrotransport, sorption, and photochemical properties of polyoxometalate NH 4) 32[M VI 110 M V 28 O 416H 6(H 2O) 58(CH 3CO 2) 6]· xH 2O (x ~ 250) with a toroidal structure are studied. Conditions for studying these characteristics are selected on the basis of data on the stability of POM, in dependence on the concentration and acidity of the medium and the processes of thermal decomposition. A set of independent physical and chemical methods of analysis is used. The possibility of the complexation of toroidal POM with polymer molecules is established. The photostabilizing effect of this POM on polymer molecules is revealed. © Pleiades Publishing, Ltd., 2012