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Bacteria in a zombie-killer turns silver - VIDEO PDF Print E-mail
Friday, 08 May 2015 00:00

It seems scary scenarios of films about the zombie apocalypse are confirmed in real life. But do not seek shelter in an underground bunker. While the dramatic developments are only in the world of bacteria.

Scientists from the Hebrew University of JerUSAlem (Hebrew University of JerUSAlem) found that microorganisms of the victims of poisoning with silver, the survivors begin to kill the neighbors. The work was published in Scientific Reports.

Silver is used in medicine for thoUSAnds of years, and scientists have long been aware of its antibacterial properties. The metal ions, holes in the membrane and bind to nucleic acids DNA disrupting cells. However, until now no one paid attention, that the dead microorganisms pose a mortal threat to the living counterparts.



Avnir David (David Avnir) and his colleagues treated with a solution of silver nitrate culture of Pseudomonas aeruginosa. Then, the scientists carefully cleaned from the remnants of dead cells deadly fluid and placed them next to the living sticks. And then it turned out that as a result of this neighborhood killed over 99% of live bacteria.

To understand the causes of this phenomenon, the researchers examined the affected silver bacteria under the electron microscope. It was found that the dead cells dying as sponges absorb silver nanoparticles which slowly leached out and hit new organisms.

Further experiments have shown that at low concentrations of silver solution quickly action ends, because the first batch of bacteria got into it removes from him all the silver ions. When the concentration of "zombie effect" is evident not only in the first but in the second generation of bacteria that absorb enough silver to kill micro-organisms of the third wave.

According to experts, the discovery will help make better use of antibacterial agents based on silver, which are widely used in medicine.

Today silver is used for the treatment of severe wounds and sterilization facilities. Furthermore, there are washing machines, clothes are treated with silver ions, and even antimicrobial socks with silver threads.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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