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Good vibrations: how sound waves could help detect prostate cancer

by Tim Gunn , Ruth Amies | Analysis

26 February 2026

1 comment 1 comment

Prostate cancer cell spheroid, SEM.
Prostate cancer cell spheroid, SEM. Izzat Suffian, David McCarthy & Khuloud T. Al-Jamal. Source: Wellcome Collection. (CC BY 4.0)

If you’ve seen much live music, you’ll know what it’s like when the bass rumbles into your ribcage. Vibrations like that are powerful. They pump hearts onto their rhythm and make vast crowds of people move as one.

That power is just as profound on the tiniest scale. We’re coursing with particles that respond to sound as surely as we do, and a team of Cancer Research UK scientists is using that fact to help pick out signs of prostate cancer.

The venue is Cardiff University, where Professor Aled Clayton, Dr Isobella Honeyborne, Xiaoyan Zhang and Dr Chris Yang have built a very specific type of sound bath. It’s not quite the type you’d find on a wellness retreat, but it could be even better for your health.

The vibe-based device sends pulses of sound through the crowds of microscopic particles in fluids like blood and urine to help extract bubbles of information called vesicles. It has the potential to turn blood and urine samples into tools for diagnosing prostate cancer more efficiently – and, crucially, to cut the number of men who need invasive surgical tests.

Building a new type of blood test for prostate cancer

Vesicles are round, fat-wrapped packages our cells use to transport important signals and substances. The ones that travel into our blood and urine come from all over the body, which makes them useful for understanding what’s going on in different organs. If someone has prostate cancer, vesicles from their prostate are likely to contain information that could help doctors diagnose and treat them.

But there’s a hitch. There are many different types of vesicles in each blood or urine sample, and their signals can be drowned out by the other particles in the mix. Clayton and his team’s device is specifically designed to tune all that other noise out.

“We’re building a machine that uses sound waves to create gentle forces inside a drop of serum sample,” explained Clayton. “These forces will move the vesicles into the centre of the liquid droplet and allow us to collect a clean and concentrated sample rich in vesicles.”

In live music terms, it’s a bit like pushing the vesicles into their own (gentle) mosh pit.

“Our prototype machine can perform this processing in salty-water specimens very quickly, within 30 to 40 seconds,” Clayton said. “We’re now refining it so that it can achieve this effect with complicated real samples like blood serum, which are full of vesicles and other particles.”

Improving how we use prostate biopsies

This is still early-stage research – you won’t be able to stream it or get the vinyl anytime soon. And it’s not a solo act, either; it’s designed to help doctors make the best use of our other instruments.

The most important of those is the prostate biopsy, a surgical procedure that involves taking a sample of cells directly from someone’s prostate.

Prostate biopsies are essential for confirming that someone has prostate cancer and deciding on a treatment. But the surgery they require is invasive and can be uncomfortable, and it comes with a small risk of infection.

Many people who go through these potentially difficult procedures will find out they don’t have cancer. Others will be diagnosed with slow-growing types of cancer that will never cause them problems.

Clayton hopes his team’s sound wave device (as part of a test called a liquid biopsy) will help show who does and doesn’t need a prostate biopsy, so they aren’t offered to as many people who don’t have prostate cancer, or who have cancers that won’t cause them any harm.

“We need better diagnostic testing for prostate cancer, and the analysis of vesicles in blood or urine holds a lot of potential,” said Clayton. “They carry a host of molecules that have come from the cancer cells, and our machine can help us analyse them rapidly.

“The rich information provided could be used together with other measurements such as the PSA test, MRI scans and measures of urinary symptoms to help doctors make more informed decisions about who truly needs a biopsy.”

Liquid biopsies and the PSA test

The blood test doctors currently use to check for signs of prostate cancer (the PSA test) looks for elevated levels of prostate specific antigen (PSA). Although it’s unique to the prostate, PSA is produced by prostate cancer cells and healthy prostate cells, so levels can rise for multiple different reasons apart from cancer, including older age.

By contrast, a liquid biopsy test that extracts information about prostate cells from vesicles could identify genetic changes that are unique to prostate cancer.

Changing how prostate cancer is diagnosed

The way the NHS looks for prostate cancer is already changing. 

In November 2025, the UK National Screening Committee (UK NSC) published a draft recommendation for a targeted prostate cancer screening programme. If it’s implemented according to the draft, the programme will offer a PSA test to all 45 to 61-year-old men with identified BRCA mutations every two years. The UK NSC is now running a consultation period and will deliver a final recommendation after reviewing and considering feedback on the draft.

As it stands, the draft programme would help diagnose aggressive prostate cancer earlier, when treatment is most likely to be effective, and help save lives among those at high genetic risk. But there’s much more to do. The PSA test and the other tools we have today aren’t suitable for a wider screening programme, and there’s room to improve how we diagnose prostate cancer outside screening, too.

That’s why the work that’s happening in Cardiff is so important – it has the potential to improve how we detect early prostate cancer and identify which cancers need treatment to stop them causing harm. With tools that do that, we can help make sure more men get to keep enjoying life’s good vibrations for many years to come.

Listen to our latest podcast episode on liquid biopsies

Cancer blood tests can look for much more than vesicles. In our latest episode of That Cancer Conversation, Professor Nitzan Rosenfeld, a liquid biopsy pioneer, explains how we can use tiny fragments of tumour DNA in blood samples to find, track and treat cancer earlier and more precisely than ever before.

    Comments

  • Terry Smith
    9 March 2026

    Interesting development about the ‘Liquid Biopsy’. Invasive Prostate biopsies can be painful, so I hope this new procedure bears fruit. Anything to capture the progress of this insidious killer as early as possible.Thank you.

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    Comments

  • Terry Smith
    9 March 2026

    Interesting development about the ‘Liquid Biopsy’. Invasive Prostate biopsies can be painful, so I hope this new procedure bears fruit. Anything to capture the progress of this insidious killer as early as possible.Thank you.

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Read our comment policy.