25 мая 2020  |  
5:48 PM  September 9, 2019

TPU scientists develop micro vacuum cleaner concept for nanoparticles

© сайт Томского политехнического университетаTPU scientists develop micro vacuum cleaner concept for nanoparticles

TOMSK, Sep 9 – RIA Tomsk. Scientists of Tomsk Polytechnic University (TPU) developed a concept of photonic "micro vacuum cleaner" building that literally draws nanoparticles from surrounding space; effect discovered by the polytechnics can be used to clean air in "cleanrooms", as well as when setting up "lab-on-a-chip", the press service of the university reports on Monday.

According to the concept developed in TPU, "micro vacuum cleaner" is a microparticle of dielectric. The scientists have worked with particles, as an example, as an example having the shape of an equilateral cuboid. There is a recess or through hole of nano-size in this particle. When a particle comes under the influence of optical radiation, such as a laser, optical pressure occurs and the nanoparticles "get sucked" into the cuboid.

"The size of the nanoparticles varies from 1 to a maximum of 100 nanometers. Today, researchers in different countries are looking for ways to manage such small particles. However, effective and widely used systems or devices do not yet exist for such purposes. We propose a new concept for the manipulation of particles, their capture,"– the press service quotes the professor of the Division for Electronic Engineering of TPU Oleg Minin.

In practice, the concept of the polytechnics can be implemented in the work of so-called "labs-on-a-chip" used in medical and biological research. Laboratory functions in this case are placed on a chip, from a few square millimeters in size. Cleaning the chip and ambient air from foreign nanoparticles will help increase the sensitivity of the analyses, the report says.

"The study is conducted by Russian scientists in cooperation with specialists from Jilin University (China) and Ben-Gurion University (Israel). The next step in the study will be experimental confirmation of the concept," – the message says.

The results of the study of the scientists are published in the high-rating journal Scientific Reports, it is stressed in the report of the university.

About the Tomsk Polytechnic University

TPU is a leading technical university of the country. Founded in 1896 as the Tomsk Technological Institute of Emperor Nicholas II. Became the first engineering university in the Asian part of the country.

Today TPU is one of the top 10 universities in Russia and the top 400 universities in the world. TPU entered the top 10 of the university rating in June, 2019 compiled by the Russian editorial office of Forbes magazine, ranking ninth; this is the best result among non-polar universities in the country.

Currently, more than 11,000 students study in TPU. More than 3,000 of them are visitors from 44 countries, including Nigeria, Yemen, Pakistan, Algeria, Korea, Tanzania, South Africa and others.

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