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.