Image: Canva
One might envision a microscopic creature with its very own built-in engine, an engine whose power is fueled by something surprisingly similar to the power of rocket fuel. Scientists have now discovered exactly that inside malaria-carrying parasites. It is a fascinating look into the ways in which these deadly creatures live. It is a discovery that explains an old biological mystery. It is a discovery that is opening doors to new ways of treating the disease. In studying the ways in which these tiny “engines” work, scientists are not only learning the secrets of malaria’s success. They are also opening the doors to new ideas for the future of medicine and even the future of nanotechnology.
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What are these “rocket engines” in malaria parasites
The parasite causing the malaria infection is named “Plasmodium falciparum,” and it contains microscopic crystals of iron. For a long time, researchers have noted that these crystals are constantly moving and that they rotate, bounce, and crash into one another. However, the reason for their movement has always been a puzzle to researchers. Recently, researchers from the University of Utah Health discovered that the crystals are moved by a reaction similar to a rocket propulsion system. This is achieved by the parasite reacting with hydrogen peroxide to form water and oxygen. This reaction is known to be responsible for the movement of these crystals. A researcher noted that “it is a reaction that has long been used in rocket propulsion. But it has not been observed in biological systems before.”
How do these microscopic engines work
Hydrogen peroxide occurs naturally inside the parasite as a result of metabolism. This chemical is naturally toxic, yet the parasite uses it for its benefit.As hydrogen peroxide decomposes, it releases energy rapidly, similar to rocket propellant. This energy then makes the iron-based crystals spin and move constantly.Scientists were able to prove this by taking the crystals outside the parasite. Even then, the spinning movement of the crystals continued when they were exposed to hydrogen peroxide.What was interesting was that when the oxygen levels were reduced so that hydrogen peroxide was not produced in large quantities, the spinning movement slowed down considerably.
Why this discovery matters for malaria’s survival
Malaria parasites always face the challenge of how they will survive inside the human body and how they will cope with toxic byproducts. Hydrogen peroxide, though helpful in providing energy, is dangerous if not properly controlled.The spinning crystals help the parasite safely cope with and neutralise the toxic chemical.In other words, the “rocket engine” system of malaria parasites might function as both a mechanism of movement and a mechanism of detoxification.This might be critical for the parasite’s survival and infecting people.In addition to this newly discovered mechanism of movement, malaria parasites use special molecular motors such as actin and myosin to move and infect host cells.This indicates that malaria parasites use more than just one mechanism of movement, and therefore, they are very adaptable and hard to stop.
Implications for future malaria treatments
Gaining a better understanding of these “tiny rocket engines” has the potential to greatly impact the way in which the disease is treated. If a scientist is able to come up with a way to interrupt this chemical reaction, it is possible that it will weaken or kill the parasite. The iron crystals that are a part of this reaction have already been targeted in some anti-malarial medications. However, now that a better understanding of their role in the body is known, it is possible to develop a more targeted and effective drug. This discovery has also caused a great deal of interest in the field of nanotechnology. If it is possible for biological systems to utilise a chemical reaction in order to create motion, it is possible for microscopic robots to be developed. These robots could be utilised in the future to administer medications within the human body.
A new chapter in understanding malaria
This is a breakthrough that demonstrates how much more is still to be learned about even diseases as well-known as malaria. What was thought to be random motion within a parasite is now seen as a highly organised and energy-dependent activity.It is also a reminder that, in nature, solutions to complex problems are often found in a way that is similar to, and in some cases more effective than, human engineering. From neutralising harmful chemicals in the body to powering motion, these tiny “rocket engines” demonstrate the complex world of life on a microscopic level.As scientists continue to learn more about this parasite, they hope that they will not only be able to help fight malaria but also develop solutions for far more complex and interesting problems. Go to Source
