?
Cytogenetic Activity of Gold Nanoparticles in Germ and Somatic Cells of 129 Mise with a Nonsense Mutation in the DNA Polymerase Iota Gene
Biology Bulletin, Russia . 2018. Vol. 45. No. 2. P. 119-125.
Makarov A. A., Zelenina I. A., Zakhidov S. T., Marshak T. L., Dement'eva O. V., Rudoy V. M., Makarova I. V., Mudzhiri N. M., Andreeva L. E.
In this study, we investigated the cytogenetic effects of single and quadruple exposureof spermatogenic cells and hepatocytesof 129 mise, which have a mutation in the gtnt that encodes DNA polymeraseiota, to ultrasmall gold nanoparticles (GNPs).The combine effects of GNPs and chemical mutagen dipin were evaluated.
Vladimirova Yu.V., Zadkov V.N., Pavlov A. A., Moscow University Physics Bulletin 2017 Vol. 72 No. 6 P. 544-549
We studied the radiation-directivity pattern and the near-field polarization of a spheroidal metallic nanoparticle located over a silicon substrate by interaction with a linearly and circularly polarized field. It is shown that the directivity pattern of the spheroidal particle near the silicon substrate becomes strongly asym- metric and forward scattering is predominant compared with the ...
Added: February 1, 2019
Efremov R., Нольде Д. Е., Волынский П. Е. et al., Scientific Reports 2019 Vol. 9 No. 413 P. 1-12
How is a water-soluble globular protein able to spontaneously cross a cellular membrane? It is commonly accepted that it undergoes significant structural rearrangements on the lipid-water interface, thus acquiring membrane binding and penetration ability. In this study molecular dynamics (MD) simulations have been used to explore large-scale conformational changes of the globular viscumin A chain ...
Added: February 6, 2019
Макаров А., Pavlyuchenkova S. M., Zakhidov S. T. et al., Biology Bulletin 2012 Vol. 39 No. 3 P. 229-236
The response of the mouse male germ cells exposed to gold nanoparticles (~2.5 nm) was studied. Our investigation demonstrates that treatment with Au nanoparticles for four days does not impair the architecture of the spermatogenic epithelium. Cytogeneticevaluation using micronucleus assay showed that gold nanoparticles can affect the chromosomes of early primary spermatocytes. ...
Added: March 19, 2013
Margarita R. Chetyrkina, Fedorov F., Nasibulin A., RCS Advances 2022 Vol. 12 No. 25 P. 16235-16256
Carbon nanotube (CNT) toxicity-related issues provoke many debates in the scientific community. The controversial and disputable data about toxicity doses, proposed hazard effects, and human health concerns significantly restrict CNT applications in biomedical studies, laboratory practices, and industry, creating a barrier for mankind in the way of understanding how exactly the material behaves in contact ...
Added: September 18, 2023
Vlasova K. Y., Vishwasrao H., Abakumov M. A. et al., Scientific Reports 2020 Vol. 10 P. 4745
Remote nano-magneto-mechanical actuation of magnetic nanoparticles (MNPs) by non-heating extremely low frequency magnetic field (ELF MF) is explored as a tool for non-invasive modification of bionanomaterials in pharmaceutical and medical applications. Here we study the effects of ELF MF (30-160 Hz, 8-120 kA/m) on the activity and release of a model enzyme, superoxide dismutase 1 (SOD1) immobilized ...
Added: May 12, 2020
Radzig M., Koksharova O., Khmel I. et al., Nanomaterials 2019 Vol. 9 No. 2 P. 217
In the present work, we provide evidence for visible light irradiation of the Au/TiO2 nanoparticles’ surface plasmon resonance band (SPR) leading to electron injection from the Au nanoparticles to the conduction band of TiO2. The Au/TiO2 SPR band is shown to greatly enhance the light absorption of TiO2 in the visible region. Evidence is presented for the light ...
Added: May 29, 2020
Gritchenko A. S., Eremchev I., Naumov A. et al., Optics and Laser Technology 2021 Vol. 143 Article 107301
Fluorescence imaging of single quantum light emitters (atoms, molecules, quantum dots, color centers in crystals)
is an inherent experimental problem of modern photonics and its numerous applications. In these measurements,
highly sensitive cameras are of the key significance. Recent progress in technologies of chargecoupling
devices (CCD) and complementary metal-oxide semiconductor (CMOS) sensors opens up possibilities
for detection of extreme ...
Added: October 16, 2021
Veselova V., Abramova A., Plyuta V. et al., Journal of Functional Biomaterials 2022 Vol. 13 No. 4 Article 233
This paper reports the results of the large-scale field testing of composite materials with antibacterial properties in a tropical climate. The composite materials, based on a cotton fabric with a coating of metal oxide nanoparticles (TiO2 and/or ZnO), were produced using high-power ultrasonic treatment. The antibacterial properties of the materials were studied in laboratory tests on ...
Added: January 26, 2023
Иванов А. Д., Minkov K. N., САМОЙЛЕНКО А. А., Оптический журнал 2017 Т. 84 № 7 С. 86-90
Предложена оригинальная методика изготовления субдлинноволнового оптического волокна для
осуществления связи с оптическими микрорезонаторами. Данная методика отличается возможностью изготовления волокна с заданными характеристиками, необходимыми для надежной связи, благодаря возможности коррекции параметров вытягивания волокна в процессе его производства с использованием
датчиков контроля натяжения и температуры нагрева. Проведены измерения основных характеристик
полученных образцов субдлинноволнового оптического волокна. ...
Added: May 25, 2018
Khabibullin V., Margarita R. Chetyrkina, Obydennyy S. et al., International Journal of Molecular Sciences 2023 Vol. 24 No. 5 Article 4480
Nanoplatforms applied for the loading of anticancer drugs is a cutting-edge approach for drug delivery to tumors and reduction of toxic effects on healthy cells. In this study, we describe the synthesis and compare the sorption properties of four types of potential doxorubicin-carriers, in which iron oxide nanoparticles (IONs) are functionalized with cationic (polyethylenimine, PEI), ...
Added: September 5, 2023
Switzerland : Springer, 2020
This book comprises high-quality, refereed research papers presented at the 2019 International Symposium on Computer Science, Digital Economy and Intelligent Systems (CSDEIS2019): The symposium, held in Moscow, Russia, on 4–6 October 2019, was organized jointly by Moscow State Technical University and the International Research Association of Modern Education and Computer Science. The book discusses the ...
Added: March 15, 2020
Boldyrev K., Романов А., Хаула Е. et al., Journal of the American Ceramic Society 2019 Vol. 102 No. 5 P. 2745-2751
Single crystal of TlCl was doped with NIR photoluminescent univalent bismuth cations by prolonged immersion in liquid bismuth metal. The ion exchange Tl+ + Bi0 ↔ Tl0 + Bi+ at the crystal surface with subsequent Bi+ migration to the bulk are expected to drive the doping process. Contrary with Bi‐doped TlCl crystals, grown by Bridgman method, the ion exchange does ...
Added: February 8, 2019
Kalmykov A., Melentiev P., Balykin V., Laser Physics Letters 2020 Vol. 17 No. 4 P. 045901
In this paper we present measurements and comparison of SPP propagation length at the practically important telecom wavelength (1560 nm) as well as in the near-infrared and visible spectral ranges. The measurements were carried out for plane SPP waves excited on Ag film surface using optical microscopy of SPP waves in the far field. We ...
Added: January 15, 2021
Knyazev E., Khristichenko A., Maltseva D. et al., Placenta 2019 Vol. 83 P. e59-e60
Objectives: The study of the transport and toxicity of xenobiotics in women is limited for ethical reasons. Ex vivo placenta models have high variability and low success rates. Animal models in vivo differ from a human in anatomy, genotype, and proteome. The placenta-on-a-chip model is a compromise. We studied the components of the FAC chemotherapy regimen for breast cancer in ...
Added: February 1, 2021
Oxford : Wiley, 2019
Added: November 1, 2019
Minin A. A., Voskova A. V., Russian Journal of Developmental Biology 2014 Vol. 45 No. 3 P. 127-133
A series of dates of unfolding of the first leaves and duration of the season of vegetation in the silver birch (Betula pendula Roth. (B. verrucosa Ehrh.)), as well as the duration of flowering of the bird cherry (Padus avium), mountain ash (Sorbus aucuparia), and smallleaved lime (Tilia cordata Mill.) for the period 1970–2010 in ...
Added: October 17, 2014
Sergeyev V., Гришуткина Д., Логистика и управление цепями поставок 2007 № 3 С. 10-28
It is shown, that recently among technologies of integration of contractors at supply chains «Vendor managed inventory» concept has been growing in popularity (VMI). Basic definitions within the framework of this concept/technology are analysed. VMI technology is viewed within the confines of development of logistics and supply chain management, and are estimated those benefits, which ...
Added: December 14, 2012
Yurova P., Караванова Ю. А., Yaroslavtsev A. B., Журнал неорганической химии 2015 Т. 60 № 11 С. 1551-1553
The properties of hybrid materials based on the MK-40 heterogeneous membrane, the MF-4SK homogeneous membrane, and zirconium oxide with a functionalized surface are studied. The ionic conductivity and diffusion parameters of these materials were studied. The presence of the asymmetry effect of diffusion permeability and mutual diffusion of HCl and NaCl solutions through the studied ...
Added: November 13, 2019
Nicol R., Chapman S., Vertes P. et al., Journal of Neurophysiology (США) 2012 Vol. 107 No. 5 P. 1421-1430
How do human brain networks react to dynamic changes in the sensory environment? We measured rapid changes in brain network organization in response to brief, discrete, salient auditory stimuli. We estimated network topology and distance parameters in the immediate central response period, <1 s following auditory presentation of standard tones interspersed with occasional deviant tones ...
Added: October 23, 2014
Kartsev A., Lega P., Orlov A. et al., Nanomaterials 2022 Vol. 12 No. 7 Article 1107
Recently, Ti-Ni based intermetallic alloys with shape memory effect (SME) have attracted much attention as promising functional materials for the development of record small nanomechanical tools, such as nanotweezers, for 3D manipulation of the real nano-objects. The problem of the fundamental restrictions on the minimal size of the nanomechanical device with SME for manipulation is ...
Added: April 29, 2022
Logvenkov S. A., Штейн А. А., Российский журнал биомеханики 2013 Т. 17 № 4 С. 47-57
The mathematical modelling is performed to study the effect of the permeability of the Casparian bands to water and solutes on the formation of the root pressure. It is shown that the pressure in the xylem vessels which stops the flow across a root cut (root pressure) decreases with increase in the permeability of the ...
Added: January 30, 2014
М. : Издательство "Перо", 2022
В сборнике представлены материалы 6-й Международной научно-практической конференции «Социально-психологическая адаптация мигрантов в современном мире», прошедшей 25-26 марта 2022 на базе Пензенского государственного университета. ...
Added: March 27, 2022
Antonov I., Molecular Biology and Evolution 2020 Vol. 37 No. 8 P. 2268-2278
Magnesium chelatase chlIDH and cobalt chelatase cobNST enzymes are required for biosynthesis of (bacterio)chlorophyll and cobalamin (vitamin B12), respectively. Each enzyme consists of large, medium, and small subunits. Structural and primary sequence similarities indicate common evolutionary origin of the corresponding subunits. It has been reported earlier that some of vitamin B12 synthesizing organisms utilized unusual ...
Added: March 12, 2021
Butovskaya M., Chemical Senses 2018 Vol. 43 No. 7 P. 503-513
A model including individual-level predictors (gender, age, material situation, education, and preferred
social distance) provided a relatively good fit to the data, but adding country-level predictors
(Human Development Index, population density, and average temperature) did not improve model
parameters. Although there were some cross-cultural differences in social odor awareness, the
main differentiating role was played by the individual differences. ...
Added: February 12, 2019