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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Мензянова Н. Г., Николаева Е. Д., Винокурова Д. В., Шабанов, Александр Васильевич, Шершнева А. М., Шишацкая, Екатерина Игоревна, Сухова К. В.
Заглавие : Влияние биоматериалов медицинского назначения на структурно-функциональные особенности моноцитов
Место публикации : Журн. СФУ. Сер. "Биология". - 2016. - Т. 9, № 1. - С. 33-42. - ISSN 1997-1389, DOI 10.17516/1997-1389-2015-9-1-33-42
Ключевые слова (''Своб.индексиров.''): biomaterials for medical uses--polyhydroxyalkanoates--monocytes--nanodiamonds--fullerenes--биоматериалы медицинского назначения--моноциты--наноалмазы--фуллерены--полигидроксиалканоаты
Аннотация: Изучены морфофункциональные особенности моноцитов в условиях кратковременного культивирования in vitro на носителях из биополимера полигидроксиалканоата (ПГА) в присутствии наноалмазов (НА) и фуллеренов (Ф). Показано, что НА и Ф в исследованных концентрациях не влияли на жизнеспособность моноцитов в кратковременной культуре. Соотношение морфологических классов моноцитов в присутствии НА и Ф существенно отличалось от контрольного варианта культивирования. Влияние НА и Ф характеризовалось дозовой зависимостью. Воздействие наночастиц на культуру моноцитов значительно изменялось при формировании белковой короны на поверхности НА и Ф, что приводило к возникновению новых количественных соотношений между морфологическими классами моноцитов в культуре in vitro. Полученные результаты позволяют рассматривать кратковременную культуру моноцитов in vitro как адекватную модельную систему для оценки влияния новых материалов на процессы дифференцировки субпопуляций моноцитов.The morphological and functional features of the monocytes in a short-term in vitro cultivation on substrates of biopolymer polyhydroxyalkanoate (PHA) in the presence of nanodiamonds (ND) and fullerene (F) were studied. It has been shown that ND and F in the studied concentrations did not affect the viability of monocytes in the short-term culture. The ratio of morphological classes in the presence of ND and F signi?cantly different from the control group of cultivation. Effects of NA and F were characterized by dose-dependent. The formation of a protein corona on the surface of NA and F led to signi?cant changes in the effects of nanoparticles and the formation of new quantitative relationships between morphological classes of monocytes in culture in vitro. The results allow to consider a short-term culture of monocytes in vitro as a model system for adequate assessment of the impact of new materials on the processes of differentiation of monocyte subpopulations.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Puzir’ A. P., Minakov A. V., Burov A. E., Zharkov S. M., Maksimov N. G., Pryazhnikov M. I.
Заглавие : The effect of silver ions electrolytically introduced into colloidal nanodiamond solution on its viscosity and thermal conductivity
Место публикации : Colloid J.: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 79, Is. 2. - P.258-263. - ISSN 1061933X (ISSN), DOI 10.1134/S1061933X17020119
Примечания : Cited References: 22
Ключевые слова (''Своб.индексиров.''): dispersions--ions--metal ions--nanodiamonds--nanoparticles--silver--viscosity--a-stable--detonation nanodiamond--diamond nano-particles--effect of silvers--silver concentration--silver ions--thermal conductivity
Аннотация: Experimental data have been presented on the influence of silver on the viscosity and thermal conductivity of a dispersion of diamond nanoparticles. A stable dispersion (5 wt %) of detonation nanodiamond particles has been used in the experiments. Silver ions have been introduced electrolytically into the dispersion of diamond nanoparticles. Silver concentration was not higher than 0.05 wt %. It has been shown that the introduction of silver ions significantly affects the thermal conductivity and viscosity of the dispersion.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ronzhin N. O., Posokhina E. D., Mikhlina E. V., Shestakov N. P., Nemtsev I. V., Bondar V. S., Ryzhkov I. I.
Заглавие : The effect of copper and iron adsorption on the catalytic performance of alumina nanofiber / nanodiamond composite in sensing applications
Место публикации : J. Phys. Chem. Solids. - 2022. - Vol. 167. - Ст.110785. - ISSN 00223697 (ISSN), DOI 10.1016/j.jpcs.2022.110785
Примечания : Cited References: 68. - This work is supported by the Russian Foundation for Basic Research, Project 18–29–19078. The authors would like to express their special thanks to Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS» for providing the equipment to ensure the accomplishment of this project
Аннотация: Phenolic compounds are common environmental pollutants, which are used in many industries and contaminate water environment due to industrial wastewater discharge. Presently, there is an increasing demand for the development and improvement of inexpensive, easy-to-use analytical tools for in-situ detection of phenolic compounds. In this work, we investigate the effect of adsorption of Cu2+ and Fe2+ ions on the catalytic activity of a composite material based on alumina nanofibers (ANF) and detonation nanodiamonds (DND) in the co-oxidation of phenols with 4-aminoantipyrine in the presence of hydrogen peroxide. We have found more than two-fold increase of the catalytic activity for ANF + DND + Cu composite, while the activity of ANF + DND + Fe composite is found to decrease by several times in comparison with the original ANF + DND material. The results of FTIR analysis indicate that the adsorption of iron ions occurs with the formation of hydroxide surface groups and hydrogen bonds, which apparently block their catalytic activity in the Fenton redox cycle. The higher catalytic performance of AND + DND composite functionalized with copper ions makes it possible to detect two times lower concentrations of analytes (phenol and 4-chlorophenol) in comparison with the original composite. It is shown that the AND + DND + Cu composite provides a linear yield of the co-oxidation reaction product in a wide range of analyte concentrations (0.25–100 μM for phenol and 0.5–25 μM for 4-chlorophenol). Model experiments demonstrate the applicability of copper-functionalized composite as a reusable sensor for the determination of phenol in aqueous samples.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Isakova V. G., Isakov V. P., Lyamkin A. I., Zharikova N. V., Yunoshev A. S., Nemtsev I. V.
Заглавие : Surface modification of detonation nanodiamonds with platinum and palladium nanoparticles
Место публикации : Int. J. Chem. - 2015. - Vol. 7, No. 1. - P.1-9. - ISSN 1916-9698, DOI 10.5539/ijc.v7n1p1
Примечания : Cited References: 38
Ключевые слова (''Своб.индексиров.''): detonation-synthesized nanodiamond supports--platinum and palladium nanoparticles--combustion--chemical modific--dnd additional purification
Аннотация: Acetylacetonates of platinum group metals (M(acac)n, acac= CH3COCHCOCH3,n - oxidation state of metal) are the most suitable precursors for use in highly effective MOCVD (metal-organic chemical vapor deposition) processes because of their thermal properties, low price of initial ligand and accessible synthesis methods. In this study we have developed a simple, scalable inexpensive, MOCVD-like approach to the deposition of Pt and Pd nanoparticle dispersions on powder detonation nanodiamonds (DND) using combustion in air of powder mixtures of DND with Pt and Pd acetylacetonates. This one-step process requires no specialized apparatus, and is conducted at mild temperatures (180°C – 250°C). The substrate surface of DND initiates chemical thermal destruction of precursor and deposition of nanoparticle networks composed of constituent particles. DND-supported Pd and Pt nanoparticles with their loading being from 10 and 5wt. % were obtained the average of particle size 20-25 nm and 7-10nm decreases with decreasing the metal loading. For additional purification and disaggregation of the commercial detonation-synthesized nanodiamond (DNDcomm) the method of annealing of the powder mixtures DNDcomm with Na(acac) have been used. The purified diamond nanoparticulates (DND), as well as DNDcomm, Pt/DND and Pd/DND, were subjected to physicochemical characterizations, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) analysis.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Korets A., Krylov A. S., Mironov E.
Заглавие : Structural heterogeneity of diamond-containing detonation material
Место публикации : Eur. Phys. J. - Appl. Phys. - 2010. - Vol. 52, Is. 1. - P.10901-10905. - ISSN 1286-0042, DOI 10.1051/epjap/2010126
Примечания : Cited References: 17
Предметные рубрики: NANODIAMONDS
Ключевые слова (''Своб.индексиров.''): influence of density--raman and infrared spectra--structural heterogeneity--variable ratio--detonation--diamonds--diffraction--holographic interferometry--spectroscopy--x ray diffraction--synthetic diamonds
Аннотация: Diamond-containing material (DCM) synthesized by detonation was separated into fractions. Raman and infrared spectra and X-ray diffraction patterns of the individual fractions were measured. The particles of this material were characterized by the variable ratio of the diamond (sp(3)) and non-diamond components. The distribution of sp(3)-grains in the particles was of complicated character. The fine DCM particles contained an insignificant amount of diamond. The influence of density fluctuations on the DCM formation is discussed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shishatskaya E. I., Nikitovic D., Shabanov A. V., Tzanakakis G. N., Tsatsakis A. M., Menzianova N. G.
Заглавие : Short-term culture of monocytes as an in vitro evaluation system for bionanomaterials designated for medical use
Место публикации : Food Chem. Toxicol.: Elsevier, 2016. - Vol. 96. - P.302-308. - ISSN 02786915 (ISSN), DOI 10.1016/j.fct.2016.08.025
Примечания : Cited References: 46
Предметные рубрики: MAGNETIC NANOPARTICLES
CELLULAR REDUCTION
PROTEIN CORONA
CELLS
MECHANOTRANSDUCTION
NANOMATERIALS
LOCALIZATION
BIOMATERIALS
CYTOSKELETON
ACTIVATION
Ключевые слова (''Своб.индексиров.''): biocompatible biopolymers--polyhydroxyalkanoates--nanomaterials--nanodiamonds--fullerenes--bio-nanomaterials--monocytes
Аннотация: We studied the feasibility of using a short-term culture of monocytes, isolated from peripheral donor blood, to assess the biological activity of different types of bionanomaterials (BNM): biodegradable polimeric particles, fiber and film substrates of micro- and nano-dimensions, fullerenes (F) and nanodiamonds (ND), which are either currently in use and/or potentially applicable in medicine. Additionally, the effect of creating a protein corona on ND and F particles was investigated. The cellular reduction of (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) is a well-established tool for assessing the viability/metabolic activity of cells. The scanning electron microscopy assay can detect fine changes in cell morphology. In the present study BNM have been shown to affect; in a size, chemical composition and morphological characteristics-dependent manner, the ability of monocytes to reduce MTT as well as their morphology. Moreover, the specific effects of ND and F on MTT reduction and cell morphology were exhibited in a dose-dependent manner and sensitive to the formation of surface protein corona. Our results suggest that short-term culture of monocytes is a sensitive model system for assessing the biological effects of BMPs in vitro. © 2016 Elsevier Ltd
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chiganov A. S.
Заглавие : Selective inhibition of the oxidation of nanodiamonds for their cleaning
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2004. - Vol. 46, Is. 4. - P620-621. - ISSN 1063-7834, DOI 10.1134/1.1711436
Примечания : Cited References: 6
Аннотация: The effect of selective inhibition of nanodiamond oxidation upon heating of detonation carbon in air is used to extract nanodiamonds from the detonation products. The methods for cleaning nanodiamonds from nondiamond carbon modifications are described depending on the synthesis conditions. (C) 2004 MAIK "Nauka / Interperiodica".
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Mikhailenko L. P., Morozov E. V.
Заглавие : NMR Imaging application to study processes of nanodiamonds gel formation in-situ
Коллективы : Санкт-Петербургский государственный университет, "Nuclear Magnetic Resonance in Condensed Matter", International symposium and summer school (NMR in Heterogeneous Systems, meeting 9th; 2012 ; июль ; 9-13; Санкт-Петербург)
Место публикации : Int. symp. and summer school "Nuclear magnetic res. in condensed matter": Book of abstracts. - СПб.: Соло, 2012. - P.110
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bondar' V. S., Puzyr' A. P.
Заглавие : Nanodiamonds for biological investigations
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2004. - Vol. 46, Is. 4. - P716-719. - ISSN 1063-7834, DOI 10.1134/1.1711457
Примечания : Cited References: 9
Аннотация: Nanoparticles with a modified surface are prepared from nanodiamonds produced in Russia. The properties of modified nanodiamonds and their hydrosols and organosols are investigated by biophysicists with the aim of preparing nanoparticles with controlled properties for solving biological problems. (C) 2004 MAIK "Nauka / Interperiodica".
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chiganova G. A., Tyryshkina L. E., Ivanenko A. A.
Заглавие : Nanodiamonds effect on characteristics of copper galvanic coatings
Место публикации : Russ. J. Appl. Chem. - 2013. - Vol. 86, Is. 8. - P.1311-1313. - ISSN 1070-4272, DOI 10.1134/S1070427213080260
Аннотация: The introduction of nanodiamonds (Technical Specification TU 3974-001-10172699-94) into a sulfuric acid electrolyte of copper plating was shown to result in decreased porosity and the corresponding diminishing of the electric resistance of the copper coatings. © Pleiades Publishing, Ltd., 2013.
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