Search by tag «Publication» 197 results

• Scientists Propose a Fully Optical Method for Near-Field Reshaping and Enhancement in Hybrid Metal-Dielectric Oligomers

  Scientists from ITMO University in collaboration with researchers from Saint Petersburg Academic University have developed a fully optical method that allows to reconfigure the properties of hybrid metal-dielectric oligomers in the near field. This offers a simpler and cheaper alternative to the existing methods of working with such structures. The use of metal-dielectric oligomers has a lot of potential for developing new data recording devices, as well as in sensor science. The research was published in Laser & Photonics Reviews.

  17.01.2019

• Head of ITMO's Femtomedicine Lab Olga Smolyanskaya on Applications of Terahertz Radiation in Medicine and Biology

  In collaboration with their Russian and international colleagues, ITMO University scientists have recently published a comprehensive overview of modern research on terahertz radiation-based diagnostic and visualisation methods. ITMO.NEWS met with one of the article’s authors, Olga Smolyanskaya, a research associate at ITMO’s Faculty of Photonics and Optical Information and head of the University's Femtomedicine Laboratory, to learn about the major emerging trends in this field.

  25.12.2018

• Chemists From ITMO University Created New Diagnostic Method for Difficult Climate Conditions

  Scientists from the SCAMT Laboratory of ITMO University developed a method to detect viral RNA without special equipment. The sensor is based on a polymerization reaction: if the sample contains traces of the target virus, then under the ultraviolet irradiation the liquid-sensor turns into a gel. The results of such an analysis can easily be detected even by people with limited vision. As the required reagents are widely available and resistant to temperature extremes, the method can be used in difficult field conditions. The results are published in RSC Advances.

  30.11.2018

• Scientists Propose Tractor Beam Concept to Capture Particles Using Light

  Physicists from ITMO University have developed a model of an optical tractor beam able to capture particles based on new artificial materials. Such a beam is capable of moving particles or cells towards the radiation source. The study showed that hyperbolic metasurfaces have great potential for experiments on the creation of the tractor beam, as well as for its practical applications. The results have been published in ACS Photonics.

  27.11.2018

• Russian Developers Created a Platform for Interactive Analysis of Metagenomic Data

  A team of developers from Skolkovo, ITMO University and MIPT presented an online service called Knomics-Biota, which allows for a comprehensive study of intestinal microbiome genetic data. Using this service, you can figure out what types of bacteria are present in hundreds of gut metagenomes, their relative proportion, and the amount of vitamins and other beneficial substances they produce. With the help of an interactive interface, you can look at the results from different perspectives, which helps to identify the relationship between microbiota and nutrition, lifestyle and health. The research was published in BioData Mining.

  26.11.2018

• Scientists Designed Nanocontainers for Bacterial Metabolism Control

  Researchers from ITMO University developed special nanocontainers that can translate the light signal into metabolic changes in bacteria. The containers consist of titanium dioxide nanoparticles coated with silver and polymers. Once the particles are heated with laser irradiation, the polymer conformation changes and the container opens, releasing the contents. Scientists tested the new system’s performance using a model enzyme, arabinose. However, it can be replaced with other active substances in order to use the containers for drug delivery. The research was published in Bioconjugate Chemistry.

  22.11.2018

• Scientists Developed New Contactless Method of Measuring Blood Flow in Hands

  A research team from ITMO University and the Almazov Center proposed a new contactless method for measuring blood flow in the upper limbs. The method is based on video recording of the skin surface under green light measuring the absorption of red blood cells. This helps to see how effective the circulatory system and the blood flow regulation are. The experimental results showed that the proposed method is as accurate as the traditional one. However, it is easier in use, cheaper, and fits more patients. The research was supported by the Russian Science Foundation (grant 15-15-20012) and published in Biomedical Optics Express.

  29.10.2018

• Researchers Use Silicon Nanoparticles for Enhancing Solar Cells Efficiency

  An international research group improved perovskite solar cells efficiency by using materials with better light absorption properties. For the first time, researchers used silicon nanoparticles. Such nanoparticles can trap light of a broad range of wavelengths near the cell active layer. The particles themselves don’t absorb light and don’t interact with other elements of the battery, thus maintaining its stability. The research was published in Advanced Optical Materials.

  05.09.2018

• Scientists Create Antilaser for Bose-Einstein Condensate of Ultracold Atoms

  An international team of scientists has developed the world's first antilaser for the coherent perfect absorption of waves in a Bose-Einstein condensate of ultracold atoms. For the first time, scientists have demonstrated the fundamental possibility of this process for the waves propagating in a nonlinear medium. The obtained results can be used to manipulate superfluid flows, create atomic lasers, and also study nonlinear optical systems. The results were published in Science Advances.

  20.08.2018

• Study Reveals The Great Pyramid of Giza Can Focus Electromagnetic Energy

  An international research group applied methods of theoretical physics to study the electromagnetic response of the Great Pyramid to radio waves. Scientists found out that under resonance conditions the pyramid can concentrate electromagnetic energy both in its internal chambers and the area located under its base. The research group plans to apply these findings to design nanoparticles capable of reproducing similar effects in the optical range. Such nanoparticles may be used to develop sensors and highly efficient solar cells. The study was published in the Journal of Applied Physics.

  30.07.2018