Some teens have created a condom that glows if it detects an STI

The condoms change colour when they detect a sexually transmitted infection
The condoms change colour when they detect a sexually transmitted infection

Several young teens have created a condom which glows in the dark if it detects a sexually transmitted infection.

The three students, who are pupils at  Isaac Newton Academy in London, invented the contraceptive which glows when it detects the presence of certain sexually transmitted infections.

Enterprising teens Daanyaal Ali, 14, Muaz Nawaz, 13 and Chirag Shah, 14, debuted their creation - named the S.T Eye - at the TeenTech Awards in London this week. 

The condom contains a layer of molecules that attach to bacterial indicators of common sexually transmitted infections like chlamydia, syphilis, or common HPV, the boys said. 

This causes the molecules of the latex to change color depending on the infection it detects.

For instance, if your partner has chlamydia, the condom will turn green, while syphilis will make the condom turn blue, yellow for herpes, purple for human papillomavirus (HPV) which causes genital warts

Speaking to the Daily Mail, the boys said: "We wanted to create something that makes detecting harmful STIs safer than ever before, so that people can take immediate action in the privacy of their own homes without the invasive procedures at the doctors.

"We've made sure we're able to give peace of mind to users and make sure people can be even more responsible than ever before."

The idea, which is not yet a finalised product, was enough to win the boys the Health Category of the TeenTech awards this year.