Pregnancy tests could soon be taken by Women using smartphones

Tech genius are trying to create an app for smartphones which women can use to take pregnancy test and also to monitor diabetes. And all the credits goes to a sensor that can measure bodily fluids such as blood, saliva, urine, sweat or breathe.

This sensor makes use of an optical phenomenon known as surface plasmon resonance (SPR), which happens when light causes electrons on the surface of a thin film to jostle. This then detects the composition of fluid or the presence of particular biomolecules or trace gases.

The process (Surface plasmon resonance) takes place when a static beam of light strikes a metallic film. Large band of the light is reflected, but a little band is absorbed by the film’s surface electrons, causing them to resonate.

A Doctor at the University of Hanover in Germany, Dr Kort Bremer stated that: ''They have the potential to develop small and robust lab-on-a-chip devices for smartphones. So, surface plasmon resonance sensors could become feasible and available now.”

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