Born in Nigeria, Raised in Canada: The 17-Year-Old Inventor Using Magnetic Liquid to Fight Plastic Pollution

What if a strange black liquid could help clean plastic from the world's rivers, lakes and oceans?

For 17-year-old Moroti Adegboyega, that question became more than a science experiment. It became the foundation for an invention that has now earned him one of the world's most prestigious international awards for young water innovators.

Adegboyega was born in Nigeria and moved to Canada when he was six. Growing up in St. John's, Newfoundland and Labrador, he developed a fascination with science that eventually led him into chemistry, robotics, artificial intelligence and environmental engineering. In August 2026, his work earned him the Stockholm Junior Water Prize after he represented Canada at the international competition.

His invention is called Ecoferroquatics, an autonomous aquatic system designed to identify and selectively remove plastic pollution from water.

At the centre of it is something that looks almost like science fiction: ferrofluid.

Ferrofluid is a liquid containing extremely small magnetic particles. When exposed to a magnetic field, the liquid responds to the magnet, producing the strange, flowing behaviour that has made it famous in science demonstrations.

Adegboyega became fascinated by the material after encountering research into using ferrofluid to capture microplastics.

But rather than simply reproduce an existing experiment, he asked a bigger question: could the concept be turned into an autonomous machine that could actually move through water, find plastic and remove it?

That question eventually became Ecoferroquatics.

The project combines several technologies that normally belong to very different areas of engineering.

A camera provides the system with visual information. Artificial intelligence and computer vision help identify plastic. Robotics allows the machine to navigate through the water, while a specially developed magnetic liquid and magnets form the basis of the collection mechanism.

The idea is relatively simple to describe, even though making it work is anything but simple.

The robot searches for plastic in the water. Once its vision system identifies a target, it moves towards it. The magnetic liquid is then used to interact with the plastic, allowing magnets to collect it.

In other words, Adegboyega is exploring a way to make plastic easier for a machine to find and remove.

And that distinction is important.

Cleaning polluted water isn't simply a matter of collecting as much material as possible.

A net dragged through a river or ocean doesn't necessarily know the difference between plastic waste and an aquatic organism. Conventional filters can struggle with very small particles and require maintenance. Cleanup systems can also rely heavily on human labour.

Ecoferroquatics is designed around a different philosophy: selectivity.

The machine is intended to identify the pollution rather than indiscriminately collect everything around it.

That could be particularly valuable when dealing with microplastics, tiny fragments that can be difficult to capture with conventional methods.

In controlled testing, Ecoferroquatics outperformed a basic sieve when collecting particles at microplastic scale, according to Xylem, the founding partner of the Stockholm Junior Water Prize.

That does not mean the machine is ready to clean entire oceans.

It isn't.

Ecoferroquatics remains a research prototype, and Adegboyega himself has acknowledged that significant work remains around scalability, environmental safety, field testing and real-world deployment.

But that is precisely what makes the story interesting.

The invention isn't remarkable because a teenager has somehow solved plastic pollution.

It is remarkable because a teenager has taken an unusual scientific idea and attempted to turn it into a working autonomous system.

And he did so by learning along the way.

Adegboyega has described computer science and coding as his strongest areas. Chemistry, materials science and robotics were not all subjects he already mastered.

He had to teach himself.

That meant experimenting, failing, redesigning and trying again.

One of his challenges was getting the robot to remain afloat. After repeated calculations and trial and error, he eventually achieved consistent flotation on his sixth attempt.

His experience reflects a lesson that is easy to overlook when looking at polished technological breakthroughs.

The final prototype is usually the visible part of innovation.

The failures that came before it are often invisible.

Adegboyega's own philosophy is straightforward: build first, learn what you need and keep improving.

That mindset helped take Ecoferroquatics from an idea inspired by magnetic liquid to an international award-winning project.

In August, the journey reached Stockholm.

Adegboyega was selected from national winners representing more than 40 countries and ultimately won the 2026 Stockholm Junior Water Prize. Sweden's Crown Princess Victoria presented the award during a ceremony at Stockholm City Hall as part of World Water Week.

The competition has been running since 1997 and brings young researchers together to develop solutions to some of the world's most pressing water challenges.

For Adegboyega, however, the significance of the moment goes beyond the trophy.

It represents a journey that began thousands of kilometres away.

He was born in Nigeria.

At six years old, he moved to Canada.

Newfoundland and Labrador became the environment in which his curiosity developed, his teachers encouraged his experiments and his interest in science grew into increasingly ambitious projects.

That makes his story particularly meaningful for Nigerians watching from home.

It is a reminder that innovation can emerge from people with roots in one country and opportunities in another.

Adegboyega did not have to grow up in Silicon Valley or inside a famous research institution to begin building advanced technology.

He started as a student.

He entered science fairs.

He became curious about an unusual material.

Then he taught himself the skills necessary to turn that curiosity into something physical.

His school also played an important role.

Teachers helped him develop his scientific work and presentation skills, while access to a 3D printer helped him manufacture components for his prototype.

The project eventually became much more than a school assignment.

It became an example of what happens when computer science, artificial intelligence, robotics and environmental science collide.

And that combination may be even more important in the future.

Some of humanity's biggest problems will not be solved by one discipline working alone.

Plastic pollution is a chemistry problem, an engineering problem, an environmental problem and increasingly a data and automation problem.

If machines can learn to distinguish waste from living organisms, navigate polluted environments and target specific contaminants, environmental cleanup could eventually become far more precise.

That is the larger possibility behind Ecoferroquatics.

The robot itself may change considerably before it ever reaches real-world deployment.

Adegboyega has already identified weaknesses in the current design, including limitations in the camera system and questions that still need to be answered about the biological safety of his magnetic fluid. He has spoken about developing a future "Mark Two" version that could address those problems.

He has also considered whether future versions should use multiple smaller robots working together rather than one large machine, and has suggested that wetland restoration could be an environment where the technology might eventually be particularly useful.

That willingness to acknowledge what doesn't work may be one of the most important parts of his achievement.

Real innovation isn't about pretending an invention is perfect.

It is about finding out where it fails and using those failures to build the next version.

Adegboyega's story also challenges the idea that young people need to wait until they have mastered everything before attempting something ambitious.

He didn't know everything when he started.

He learned.

He experimented.

He failed.

He built again.

And eventually, a project that began with curiosity about magnetic "black goo" ended with a teenager standing on an international stage in Stockholm, representing Canada and taking home the world's leading youth water prize.

For Nigeria, there is another layer to the story.

A child born in Nigeria grew up in Canada and developed technology aimed at solving a global environmental problem.

His achievement belongs to the scientific community that supported him, the Canadian country he represented and the Nigerian roots that are part of his story.

But perhaps the most important part is what comes next.

At 17, Adegboyega is not presenting Ecoferroquatics as the final answer to plastic pollution.

He is treating it as a beginning.

And that may be the most exciting thing about it.

Because the future of innovation may not always begin inside billion-dollar laboratories.

Sometimes it begins with a teenager seeing something strange, asking a question and deciding to build.

In Adegboyega's case, that question involved magnetic liquid.

The answer may eventually help us clean our water.