UCLA researchers have developed a "compact and cost-effective" rapid diagnostic test designed to work with standard cellphones, R&D Magazine is reporting. As designed, the device includes a rapid-diagnostic-test-reader attachment that clips onto a cellphone. Consisting of a lens, three LED arrays and two AAA batteries, the tech is designed to read almost every type of rapid diagnostic test, according to the piece. Scientists have tested the reader both on iPhones and Android-based smartphones. Story