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It may have its roots in speculative fiction, but a small number of scientists are making real progress trying to create computing systems out of living cells.

Enter the weird domain of biological computing.

The Idea of Living Computers

Eventually, researchers envision we could see computing facilities full of "living" servers which emulate particular characteristics of how machine learning learns - and could consume significantly less of the energy of existing technologies.

Many understand the notions of hardware and software in the computers we currently use.

The rather unconventional phrase employed to characterize what scientists are developing is "wetware".

Essentially, it involves creating neurons which are developed into groups called biological structures, which then can be attached to electrical contacts - at which point the method of attempting to utilize them like mini-computers can start.

The Approach

Numerous individuals, the basic premise of biological computing is probably a bit weird.

"In science fiction, people have been living with similar notions for decades," he said.

The procedure begins with biological building blocks sourced from human skin cells, which scientists acquire from certified providers. The actual donors are unidentified.

However, unexpectedly, they have plenty of offers.

In the lab, biological researchers work with multiple tiny spherical structures.

Each little sphere is basically a small, laboratory-cultivated mini-brain, made out of living stem cells which have been developed to become collections of neurons and auxiliary cells - these represent the biological structures.

They are nowhere near the intricacy of a human brain, but they possess the similar foundations.

Research and Feedback

Following a procedure which can take multiple months, the neural clusters are ready to be attached to an electrode and then activated to answer to elementary instructions.

This establishes a way for electrical signals to be sent and received, with the outcomes documented using a conventional system connected to the arrangement.

It's a simple test: you press a key which dispatches an electric signal through the contacts, and if it works (it doesn't always) you can barely observe a brief increase of activity on a screen in answer.

Electrical stimulations are important first steps towards the team's bigger goal of triggering learning in the biocomputer's neurons so they can eventually adapt to perform tasks.

Maintaining Living Computers Functional

Sustaining an conventional system operational is uncomplicated - it only requires a electricity source - but what occurs regarding biological systems?

This represents an inquiry experts continue to investigate.

"Organoids don't have vascular systems," explained a biological computing specialist.

"The human brain has circulatory systems that permeate throughout it at various levels and deliver sustenance to keep it working well.

"We don't yet know how to develop them successfully. So this is the biggest ongoing challenge."

One thing is for sure though. When we talk about a system failing, with "wetware" that is exactly what happens.

Substantial developments has been accomplished in the past few years: its biological structures can now remain viable for up to multiple weeks.

However, researchers have observed some eerie findings related to their ultimate termination.

Periodically scientists detect a flurry of activity from the neural clusters prior to expiration – similar to the accelerated cardiac activity and brain activity which has been recorded in particular people at end-of-life.

Practical Uses

Various scientific teams are engaged in the biological computing field.

Scientists reported that it had managed to get neural components to play the early computer game Pong.

In another location, researchers are also building "mini-brains" to investigate their processing methods – but in the framework of medical advancement for neurological conditions like cognitive disorders.

The anticipation is that AI will soon be able to supercharge this type of research.

However, currently, numerous researchers consider wetware is scientifically exciting - but preliminary.

Experts explained there is minimal possibility of it substituting for the key component presently employed in processing units.

"Biological computing should complement – not replace – silicon AI, while also improving medical research and reducing animal use," she explained.

While the innovation approaches nearer to actual uses, numerous experts remain intrigued by its sci-fi origins.

"I remain a admirer of science fiction," he said.

"When you have a science fiction film, or a publication, I consistently experienced a moderate regret because my reality differed from the fictional world. Now I sense that I'm part of the story, shaping developments."