Never miss a story

Get subscribed to our newsletter


×
A regular silver coating tested for comparison had only a slight anti-microbial effect, reducing the number of bacteria by 30 per cent against steel. VOA

Researchers have developed an anti-microbial coating that reduced the growth of bacteria on contamination-prone surfaces at the ISS, and could help protect astronauts beyond the Moon and Mars from the antibiotic-resistant superbugs.

Microgravity, cosmic radiation, psychological stress and unearthly conditions at the International Space Station (ISS) lead to weakened immune system and strengthening of bacteria that can put the crew at risk.


In the study, published in Frontiers in Microbiology journal, the team tested a new anti-microbial coating named AGXX, made of precious metals, on the toilet door. It proved to be highly effective.


To make matters worse, the genes responsible for these new traits can be readily shared among different species of bacteria. Pixabay

After six months, no bacteria were recovered from AGXX-coated surfaces.

Even at 12-19 months, just 12 bacteria were recovered — a reduction of 80 per cent compared with bare steel. A regular silver coating tested for comparison had only a slight anti-microbial effect, reducing the number of bacteria by 30 per cent against steel.

“AGXX contains silver and ruthenium, conditioned by a vitamin derivative, and it kills all kinds of bacteria as well as certain fungi, yeasts and viruses,” said Professor Elisabeth Grohmann from the Beuth University of Applied Sciences in Berlin, Germany.


Thus, the bacteria they carry become harder — developing thick protective coatings and resistance to antibiotics — more vigorous, multiplying and metabolising faster.Pixabay

“The effects are similar to bleach, except the coating is self-regenerating and never gets used up,” Grohmann said.

Grohmann noted that spaceflight can turn harmless bacteria into potential pathogens as the stress hormones leave astronauts vulnerable to infection.

Also Read:South Korea Installs Laser Beams at Road to Warn ‘Smartphone Zombies’ of Traffic

Thus, the bacteria they carry become harder — developing thick protective coatings and resistance to antibiotics — more vigorous, multiplying and metabolising faster.

To make matters worse, the genes responsible for these new traits can be readily shared among different species of bacteria.

“Immuno-suppression, bacterial virulence and infection risk increase with duration of spaceflight. We must continue to develop new approaches to combat bacterial infections if we are to attempt longer missions to Mars and beyond,” Grohmann noted. (IANS)


Popular

IANS

Fashion's biggest extravaganza, The Met Gala 2021, made a comeback with a vengeance after a skip in 2020 due to the pandemic.

Fashion's biggest extravaganza, The Met Gala 2021, made a comeback with a vengeance after a skip in 2020 due to the pandemic. The theme for this year's gala was 'In America: A Lexicon of Fashion', and as usual in attendance were a long list of celebrities including actors, musicians and sportpersons. Many fashion houses and celebrities chose to dazzle with the dark side of fashion as capes, leather, face masks and all kinds of drama unfolded at the event, as black ruling the red carpet with its darker vibe.

Met Gala regulars like Jennifer Lopez, Rihanna, Sharon Stone, Emily Blunt, Irina Shayk, Gigi Hadid and the Kardashian-Jenner siblings were spotted alongside debutantes like 18-year-old British tennis star Emma Raducanu who recently won the US Open, Rose Leslie from 'The Game of Thrones', gymnast Nia Dennis and Justin and Hailey Beiber who walked the Me carpet together for the first time.

The event is hosted by Vogue's Dame Anna Wintour and is held annually at The Metropolitan Museum of Modern Art in New York City. Here's a look at some of the stars who chose to walk on the darker side:

Keep Reading Show less
Pixabay

Are we just focused on post-heart attack action? Or should we be focused more on prevention?

Many young and middle-aged people today are dying of sudden heart attacks. Studies show that cardiovascular diseases (CVD) strike Indians a decade earlier compared to their Western counterparts. Why is this happening? How can we prevent it? Are we just focused on post-heart attack action? Or should we be focused more on prevention?

Luke Coutinho, Holistic Lifestyle Coach -- Integrative and Lifestyle Medicine shares an input that could prevent heart attacks at a young age:

Cholesterol is not the culprit, inflammation is: Many people believe that high levels of cholesterol and triglycerides are the sole culprits behind their heart attacks. The main reasons behind most heart attacks are inflammation and oxidative damage in the heart, blood vessels, endothelial lining, arteries, and more. While maintaining healthy cholesterol levels is important, we cannot blame heart attacks on cholesterol levels alone. What then can you do to keep inflammation in check and your heart strong? Adopt simple lifestyle changes.

cholestrol-control-tips Many people believe that high levels of cholesterol and triglycerides are the sole culprits behind their heart attacks. | Flickr

Keep Reading Show less
Max Pixel

When it comes to burgers, its not just the patty that makes it all worthwhile... one can't forget the cheese or the crunchy lettuce either.

When it comes to burgers, its not just the patty that makes it all worthwhile... one can't forget the cheese or the crunchy lettuce either. In India, McDonald's ensures their burgers use the freshest produce, which means that don't use any ordinary lettuce. The iceberg variety was first introduced in India by McDonald's, as early as the 90s, at a time when not many people were familiar with lettuce and used cabbage instead. Lettuce is a key ingredient known for its crunch, its odourless and is ideal for salads, sandwiches and burgers.

The fast food giant collaborated with local Indian suppliers and pioneered the local production of iceberg lettuce in the country. Their lettuce undergoes 30 quality and food safety checks. After harvesting, the lettuce is pre-cooled to a temperate of below 40C at the farm gate to maintain its freshness. It is then transported in refrigerated vehicles to the world-class processing plant where it is shredded to a measured length and width and then washed and cleaned thoroughly before being vacuum-packed.

burger with lettuce and tomatoes The fast food giant collaborated with local Indian suppliers and pioneered the local production of iceberg lettuce in the country | Photo by amirali mirhashemian on Unsplash

Keep reading... Show less