By Stephen Beech

A new wearable patch can detect early signs of the deadliest form of skin cancer .

The wireless device allows screening of patients at home so melanoma can be caught sooner - potentially reducing the risk of unnecessary biopsies, say scientists.

American researchers developed the ground-breaking, battery-free patch that could potentially save lives by making screening more accessible and less invasive.

They explained that skin cancer , especially melanoma, is one of the most dangerous forms of the disease.

Early detection is critical for successful treatment, but current methods often rely on visual inspection, which can be subjective and may miss vital early warning signs.

More advanced diagnostic tools - such as biopsies and imaging - are often only available i

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