Tuesday July 23, 2019

Russian Chemists Develop Unique Nano-grenades To Fight Diseases

To create the nanoparticles, the team experimented with photosensitive nanomaterial technology and a chemical 'switch' method to create the nanoparticles

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Breast Cancer
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Russian chemists have developed a unique “transforming nanoparticle” that can help fight cancer and other diseases.

Professor Ekaterina Skorb and her team from ITMO University in St. Petersburg created hollow nanoparticles with a covering of polymer filaments and granules of titanium oxide and silver, the Sputnik reported on Friday.

When illuminated with an infrared laser, the structure of the nanoparticle collapses from heat and oxygen, which releases the particle’s contents.

In the study, published in the journal Bioconjugate Chemistry, the team tested out their nanoparticles on bacteria whose DNA was modified to glow when molecules came into contact with artificial sugars which were injected into the nanoparticles.

After illuminating these ‘nano-grenades’ with an infrared laser, the sugars escaped the nanoparticles’ membranes, lighting up the bacteria and proving the method’s effectiveness.

The tab was detailed in the journal Nano Energy. Wikimedia Commons
When illuminated with an infrared laser, the structure of the nanoparticle collapses from heat and oxygen, which releases the particle’s contents. Wikimedia Commons

Importantly, neither the nanoparticles nor their structural collapse affected the viability of the bacteria’s cells.

According to Skorb, the ease with which infrared radiation passes through the human body means that the use of such nanoparticles to fight cancerous tumors or various infections will be possible in virtually any part of the body.

“This area of research is interesting not only from the perspective of the localised delivery of medicines, but also for the creation of a computer in which biological molecules can be used instead of silicon chips. This will pave the way for high-precision control of chemical processes, ‘smart’ medicines and the ability to control molecular machines,” Skorb said in a statement from Russian Science Foundation, Sputnik reported.

Also Read- NASA is Concerned Over The Strains of Toilet Microbes on ISS

To create the nanoparticles, the team experimented with photosensitive nanomaterial technology and a chemical ‘switch’ method to create the nanoparticles.

It consists of titanium dioxide nanoparticles which can split water into hydrogen and oxygen atoms when exposed to light. When placed in a solution of organic compounds, the oxygen produced begins to interact with molecules, changing the acid-base balance.  (IANS)

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Beware! If You Work In Shifts, You Are At A Greater Risk Of Heart Diseases

Companies could also consider providing health check-ups to detect early signs of heart problems, Weihong said.

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The study was not designed to prove the cause and effect, but the data showed shift workers were 13 per cent more likely to develop coronary heart disease than daytime workers. Pixabay

People who work in shifts are at heightened danger of heart disease and the risk increases with years they work in shifts, finds a Chinese study of more than 300,000 people.

Shift work “can earn more profit, but it can also cause harm to the health of employees. Thus, employers should reduce shift work as much as possible,” lead author Weihong Chen, a researcher in occupational and environmental health at Huazhong University of Science and Technology in Wuhan, was quoted as saying to the Health Day.

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For every year spent working in shifts, there was a nearly one per cent increase in the risk of coronary heart disease, the report said. Pixabay

While the reason is unknown, disruption in the normal sleep-wake cycle could increase stress. In the study, published in the journal Occupational Medicine, the team analysed data from 21 earlier studies involving over 320,000 people and nearly 20,000 cases of coronary heart disease.

The study was not designed to prove the cause and effect, but the data showed shift workers were 13 per cent more likely to develop coronary heart disease than daytime workers.

heart
Companies could also consider providing health check-ups to detect early signs of heart problems, Weihong said. Pixabay

For every year spent working in shifts, there was a nearly one per cent increase in the risk of coronary heart disease, the report said.

Also Read: Interesting Study! Something That Reminds Us Of Coffee Can Alert Our Minds
According to Weihong, employers should pay attention to staff members who are experiencing symptoms of heart problems as well as those with a family history of heart disease. Employers could provide health promotion, such as information on how to prevent and deal with ischemic heart disease, she said.

Companies could also consider providing health check-ups to detect early signs of heart problems, Weihong said. (IANS)