"Spicy world of NanoScience"
Researchers at the University of Orenburg have tested the effect of various carbon nanoparticles on bacteria. It was discovered that the bacteria-growth-inhibiting properties of nanotubes declined as the quality of purification lowered; the bacteria were neutral towards fullerenes unless the latter were modified by amine groups.…Continue
Experiments on rats carried out by Russian researchers have demonstrated that silica nanoparticles can be used to deliver drugs to the heart in case of myocardial ischemia.
One of the most promising directions in…Continue
Added by Natalia Nanorf.ru on March 4, 2011 at 6:49am — No Comments
Russian researchers have suggested a new method to form crystalline nanostructure of the Fe-Cu-Nb-Si-B alloys. The nanostructures obtained under the action of gas discharge optical radiation possess better magnetic and mechanical characteristics as compared to their analogues produced via temperature methods.…Continue
Added by Natalia Nanorf.ru on March 3, 2011 at 5:53am — No Comments
Russian researchers have developed a method for assessing biological accumulation of nanoparticles in planktonic organisms, and have demonstrated that algae and seed shrimps intensively accumulate titanium dioxide particles.…Continue
Added by Natalia Nanorf.ru on March 2, 2011 at 6:43am — No Comments
In the course of plasma magnetic traps’ operation, erosion their walls’ occurs, and nano-dimensional films and dust particles are formed. Researchers at the Russian Scientific Center “Kurchatov Institute” assert: the dust can favorably influence the reactor’s operation.
A tokamak (a toroidal chamber with magnetic coils) is a closed magnetic trap intended for high-temperature plasma creation and confinement. Controlled…Continue
Added by Natalia Nanorf.ru on March 1, 2011 at 5:40am — No Comments
Researchers at the Kazan State Technical University named after A.N. Tupolev have developed mathematical models that describe structure of various nanotube types. They allow to adjust existing theoretical ideas and design methods for various nanotube characteristics. As model application experience is accumulated, these models can help to forecast nanotube properties as well as to develop their automatic sorting methods. The work was…Continue
Added by Natalia Nanorf.ru on February 28, 2011 at 7:06am — No Comments
Researchers at the Institute of Electrophysics, Ural Branch, Russian Academy of Sciences in Yekaterinburg have suggested that the industrial ytterbium fiber laser should be used to get functional nanopowers. The work published in the Journal of Applied Physics compared productivity and power inputs when getting nanopowders via fiber and carbon dioxide…Continue
Added by Natalia Nanorf.ru on February 25, 2011 at 6:55am — No Comments
Laser waves focused on the tumor area can damage cancer cells and blood vessels feeding them. The process becomes more efficient if nanoparticles are preliminary introduced into the tumor. At the conference “Nanotechnologies in Oncology in 2010”, Russian oncologists explained how laser irradiation is absorbed by nanoparticles, what particular nanoparticles should be used and…Continue
Added by Natalia Nanorf.ru on February 24, 2011 at 6:47am — No Comments
The majority of drugs do not penetrate from blood into the brain because of the hematoencephalic barrier existing between them. This creates a lot of difficulties for brain tumor treatment. Russian researchers have developed a system for drug delivery into the brain with the help of nanoparticles and demonstrated its efficiency on laboratory animals.…Continue
Researchers at the Ioffe Technical Physical Institutehave developed a new method of synthesising composite materials from synthetic opal and vanadium oxides. Such materials have unusual optical properties. Previously, they were generated by depositing vanadium oxides (V2O5 and VO2) from a solution, but in their latest work the researchers demonstrated the greater effectiveness of…Continue
Added by Natalia Nanorf.ru on February 21, 2011 at 5:58am — No Comments
Specialists at the A.F. Ioffe Institute of Applied-Physics (Russian Academy of Sciences) have developed a new methodology for nano-dimensional heterostructure composition analysis. Along with the composition, the depth of layer occurrence is also identified. Experimental check of the methodology has proved that the data obtained through it on semiconductor structure constitution well agrees with measurement results achieved by other method, the data having low…Continue
Added by Natalia Nanorf.ru on February 18, 2011 at 9:57am — No Comments
Physicists from Yekaterinburg have generated yttrium-aluminum-garnet nanopowder using the laser-induced evaporation method. The powder with particles sized about 10 nanometers was used to create optic ceramics with a high infrared light transmission factor.
The laser-induced evaporation method also known as laser ablation or laser spark is based on removing a substance from the…Continue
Added by Natalia Nanorf.ru on February 17, 2011 at 12:57pm — No Comments
Andrey Oksogoev at the Institute of High Technologies (Ulan-Ude) has carried out an experiment that proves assumptions made earlier. Research of S.P. Kurdumov’s school dealt with energy division into thermal and nonthermal components upon changes in the environment structure. This possibility is the most important objective for establishing self-organizing nanotechnologies.…Continue
Added by Natalia Nanorf.ru on February 17, 2011 at 12:30pm — No Comments