Development of a Passive Liquid Valve (PLV) Utilizing a Pressure Equilibrium Phenomenon on the Centrifugal Microfluidic Platform. - Wisam Al-Faqheri; Fatimah Ibrahim; Tzer Hwai Gilbert Thio; Norulain Bahari; Hamzah Arof; Hussin A. Rothan; Rohana Yusof; Marc Madou (Sensors, 2015)