THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY; WAYNE STATE UNIVERSITY; HONG KONG POLYTECHNIC UNIVERSITY; CHAN, Tak-Hang; PAMU, Sreedhar; DOU, Qing Ping; CHEN, Di Patent: WO2012/171114 A1, 2012 ; Location in patent: Page/Page column 66; 67 ; WO 2012/171114 A1