Bracelet could 'warn' of sunburn

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Scientists at Strathclyde University develop a strip which turns pink after too much exposure to ultra-violet light

Researchers in Glasgow have developed an early warning sunburn indicator.

A thin strip, filled with "intelligent ink", will turn pink after too much exposure to ultra-violet light.

Scientists at Strathclyde University said the strips, costing as little as 20p each, could be worn as a bracelet or sticky labels on clothing.

Professor Andrew Mills, who led the team, said the labels, which respond to UV light, change colour at a rate which depends on a person's skin type.

He said sun-cream could be used as normal with the strips, ensuring the sun protection factor was taken into account.

Researchers are hoping to test the prototype this summer and their experiment has already attracted interest from Canada and Australia.

Prof Mills said: "Most people do not know they are showing the signs of sunburn until 48 hours after being exposed.

"It is the UV component of sunlight, so it can be pretty deceiving.

"You can think that you are OK but after 48 hours you'll have turned red.

"A sunburnt skin is a damaged skin and it can lead to terrible consequences, the numbers in the UK are terrible."