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Study of Nanoscale Profiling Modes of GaAs Epitaxial Structures by Focused Ion Beams
Pleiades Publishing Ltd - Tập 13 - Trang 26-33 - 2018
S. A. Lisitsyn, S. V. Balakirev, V. I. Avilov, A. S. Kolomiytsev, V. S. Klimin, M. S. Solodovnik, B. G. Konoplev, O. A. Ageev
The nanoscale profiling modes of epitaxial GaAs layers are experimentally studied through focused ion beams (FIB). The regularities of the influence of ion current and single FIB exposure time on the geometric characteristics of the forming nanosized profile and the etching rate of the surface of GaAs epitaxial layers are determined. It is established that, within the range of FIB modes used, the ...... hiện toàn bộ
Impact of metallic and nonmetallic nanopowders on the combustion characteristics of energetic materials based on ammonium nitrate
Pleiades Publishing Ltd - Tập 9 - Trang 541-548 - 2014
V. N. Popok, N. V. Bychin
Results of an investigation into the impact of metallic and nonmetallic nanodispersed powders on the parameters of combustion of mixed energetic materials (EMs) based on ammonium nitrate are presented and compared with micropowders. The catalytic activity ranks of the powders are plotted showing their effect on the combustion characteristics of nitrate materials. It is shown that the high efficien...... hiện toàn bộ
Microstructure of interfaces in heterosystems
Pleiades Publishing Ltd - Tập 8 - Trang 317-327 - 2013
A. L. Vasiliev, V. V. Roddatis, M. Yu. Presnyakov, A. S. Orekhov, S. Lopatin, V. I. Bondarenko, M. V. Koval’chuk
The results of investigations into interfaces and thin films in heterostructures with the use of spherical-aberration-corrected transmission and scanning transmission electron microscopy (STEM) by applying supersensitive energy-dispersion X-ray microanalysis are presented. Using examples of heterostructures of various materials (Si/Ge, InGaAs/InAs, AlN/GaN, YBCO on various substrates and LuFe(Co)O...... hiện toàn bộ
Evaluation of the enthalpy of formation of carbon nanotubes and their phase diagram
Pleiades Publishing Ltd - Tập 10 - Trang 689-695 - 2015
S. A. Gubin, I. V. Maklashova, E. I. Zakatilova
The enthalpy of formation of single-wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs) of different geometric sizes is evaluated. The region of phase stability of carbon nanotubes (CNTs) of different geometric shapes (with various lengths, inner radii, and numbers of carbon layers) is determined based on the approximate equation of state of nanocarbon. The estimates do not cont...... hiện toàn bộ
Structure and morphology of InSb epitaxial films in the AlAs matrix
Pleiades Publishing Ltd - Tập 11 - Trang 12-19 - 2016
D. A. Kolotovkina, A. K. Gutakovskii, A. K. Bakarov
We report the results of electron microscopy study of the structural and morphological features of epitaxial films in the AlAs matrix. The epitaxial films were grown in the matrix by deposition of indium and antimony from molecular flows onto the aluminum arsenide surface and subsequent deposition of aluminum and arsenic. The objects of study were (110) cross sections and (001) planar foils. Inste...... hiện toàn bộ
The current status of carbon nanotube and nanofiber production
Pleiades Publishing Ltd - Tập 3 Số 9-10 - Trang 575-580 - 2008
Э. Г. Раков
Tổng hợp vi sóng các vật liệu nano kích thước vi lõi - vỏ dựa trên magnetit được chức năng hóa với vàng và doxorubicine Dịch bởi AI
Pleiades Publishing Ltd - Tập 12 - Trang 199-207 - 2017
D. V. Pryazhnikov, O. O. Efanova, M. S. Kiseleva, I. V. Kubrakova
Một phương pháp tổng hợp vi sóng cho các vật liệu nano từ tính đa chức năng với cấu trúc “lõi - vỏ đa lớp” được đề xuất. Các điều kiện tối ưu cho quá trình tổng hợp từng bước một vật liệu dựa trên magnetit Fe3O4 (“lõi”) được sửa đổi bằng các polyme chứa silicon (TEOS + MPTMS), các hạt nano vàng và thuốc chống ung thư doxorubicine (DOX) (“vỏ”) đã được tìm ra. Sử dụng các kỹ thuật thiết bị, thành ph...... hiện toàn bộ
#tổng hợp vi sóng #vật liệu nano #magnetit #doxorubicine #phóng thích kiểm soát #y sinh học
Synthesis of catalytic systems based on nanocomposites containing palladium and hydroxycarbonates of rare-earth elements
Pleiades Publishing Ltd - Tập 10 - Trang 576-584 - 2015
M. V. Chernysheva, T. M. Buslaeva, T. Pakkanen, V. V. Fomichev, E. V. Kopylova
The preparation, characterization, and catalytic activity of nanocomposites containing palladium nanoparticles supported on yttrium and cerium hydroxycarbonates in the Suzuki cross-coupling reaction between phenylboronic acid and iodobenzene are described. All catalytic systems were characterized by means of SEM, EDS, and their surface areas were determined with N2 physisorption. The conversion de...... hiện toàn bộ
Facile Synthesis of Ultrasmall, Highly Stable, and Biocompatible Gold Nanoparticles Stabilized with Lipoic Acid: Cytotoxicity and Structural Characterization
Pleiades Publishing Ltd - Tập 14 - Trang 607-612 - 2020
Delfino Cornejo-Monroy, Betania Sánchez-Santamaria, Erwin Adán Martínez-Gómez, Imelda Olivas-Armendáriz, Alfredo Villanueva-Montellano, José Saúl Arias-Cerón, Victor M. Castaño
Using the colloidal method, and lipoic acid as a stabilizer, ultrasmall gold nanoparticles with an average size of 2.5 nm were synthesized. They are highly stable, have COOH functional groups, at concentrations lower than 100 μg/mL are non-cytotoxic, and the synthesis route is simple and economical. UV–Vis, FT-IR, Raman, and TEM spectroscopy were used to analyze their stability, composition and mo...... hiện toàn bộ
Fluorescently labeled single-walled carbon nanotubes and their hybrids with oligonucleotides
Pleiades Publishing Ltd - - 2012
E. K. Apartsin, D. S. Novopashina, Yu. V. Nastaushev, A. G. Ven’yaminova
The approach to the preparation of fluorescein-labeled single-walled carbon nanotubes was proposed. The investigation of physico-chemical properties of obtained modified nanotubes was performed. The method of the design of non-covalent hybrids of fluorescein-labeled carbon nanotubes with nucleic acid fragments containing pyrene residues at 5′-termini was developed. This method is based on stacking...... hiện toàn bộ
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