Y. Chan, MD, whose entry was the rHEALTH technology which used lasers and nanostrips to perform vast multiplexing on samples. In this competition, prize purses totaling $2.25 million were awarded. 2013–2015 The Wendy Schmidt Ocean Health XPRIZE The Wendy Schmidt Ocean Health XPRIZE is a $2 million competition to improve our understanding of ocean acidification. On July 20, 2015, the winners of the challenge were announced. 2011–2017 Qualcomm Tricorder XPRIZE The Qualcomm Tricorder XPRIZE was announced on May 10, 2011, and is sponsored by Qualcomm Foundation. It was officially launched on January 10, 2012. The $10 million prize is awarded for creating a mobile device that can "diagnose patients better than or equal to a panel of board certified physicians". The name is taken from the tricorder device in Star Trek which can be used to instantly diagnose ailments. No team met all the requirements needed to win the full prize purse. Reduced prizes were made to the strongest performers (US$2.6 million for Final Frontier Medical Devices, US$1 million for Dynamical Biomarkers, and $100,000 for Cloud DX, named "Bold Epic Innovator"). For the first time at any XPRIZE, the leftover funds from the main prize purse were diverted for consumer testing for commercialization ($3.8 million) and for adapting tricorders for use in hospitals in developing countries ($1.6 million). 2007–2018 Google Lunar XPRIZE The Google Lunar XPRIZE was introduced on September 13, 2007. The goal of the prize was similar to that of the Ansari XPRIZE, to inspire a new generation of private investment in space exploration and technology. The challenge called for teams to compete in successfully launching, landing, and operating a rover on the lunar surface. The prize was going to award $20 million to the first team to land a rover on the moon that successfully roved more than 500 meters and transmitted back high definition images and video. There was a $5 million second prize, as well as $5 million in potential bonus prizes for extra features such as roving long distances (greater than 5,000 meters) capturing images of man-made objects on the moon, or surviving a lunar night. On January 23, 2018, the prize ended when no team was able to schedule, confirm and pay for a launch attempt. The XPRIZE Foundation announced that "no team would be able to make a launch attempt to reach the Moon by the March 31, 2018 deadline... and the