Most of us never see them, but many of the world’s tiniest creatures have incredible means of survival. It can eat and use it as fuel when other food is scarce.
It is precisely this microbiological trick that set researchers at Monash University in Australia on the long road to localizing and isolating the enzyme. Mycobacterium smegmatis It processes the consumed hydrogen and outputs it as electricity. There is now the potential to leverage this to power small devices, implants, and more.
“It has long been known that bacteria can use trace hydrogen in the air as an energy source to grow and survive in Antarctic soils, volcanic craters and deep oceans,” said a microbiology professor. says Chris Greening. “But I didn’t know how they did this until now.”
Hydrogen makes up only 0.00005% of the atmosphere, but this lone hydrogen-catalyzing enzyme, which the team called Huc, can easily consume it.and bacteria remove 70 million tons [77 million tons] Huc’s molecular structure breaks down hydrogen molecules to form electron transport chains, essentially creating an electrical circuit within the cell.
“Huc is very efficient,” said Rhys Grinter, lead author of the university’s Biomedical Discovery Laboratory. “Unlike all other known enzymes and chemical catalysts, it also consumes hydrogen below atmospheric levels, which is only 0.00005% of the air we breathe.”
It took the team five years to separate the Huc, and there were some dead ends, but once they did, they were blown away by the many facets of this tiny powerhouse. Not only does it not react to oxygen (which poisons many hydrogen catalysts), but it’s also extremely versatile and capable of long-term storage, a battery that never runs out of juice as long as there’s even a small amount of hydrogen bouncing around in the air. It’s like .
“It’s remarkably stable,” said Ashleigh Kropp, a doctoral candidate and co-author of the study. “It is possible to freeze the enzyme or heat it to 80°C. [176 °F], holds the force that generates the energy. This reflects that this enzyme helps bacteria survive in the harshest environments. ”
However, it’s a little premature to celebrate Huc’s impending commercial success. Scientists have so far generated only a small amount of charge from a similarly small supply of enzyme.
But for a team aiming to better understand how bacteria work in their environment, this is an incredible discovery. , suggests that it aims to serve as a battery cell for small devices such as simple computers, but Grinter believes that time, money, and significant increases in enzyme density will power enzymes. thinking about. Cars are a possibility of the future.
“Once you generate enough Huc, the sky literally becomes the limit for using it to generate clean energy,” he added.
A study was published in a journal Nature.
Source: Monash University
