Could Your Smartphone One Day Tell You You're Pregnant? (image) The Optical Society Share Print E-Mail Caption A fiber optic surface plasmon resonance (SPR)-sensor developed for smartphones is pictured. Credit Kort Bremer, Hanover Centre for Optical Technologies Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.