Efficient power harvesting from the mobile phone audio jack for mHealth peripherals. - Chengyang Yao; Alexander Sun; Drew A. Hall (GHTC, 2015)

Smartphone-Based pH Sensor for Home Monitoring of Pulmonary Exacerbations in Cystic Fibrosis. - Alexander Sun; Tom Phelps; Chengyang Yao; A. G. Venkatesh; Douglas Conrad; Drew A. Hall (Sensors, 2017)