%0 Journal Article %T State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China %A Olga Korostynska %A Khalil Arshak %A Edric Gill %A Arousian Arshak %J Sensors %D 2007 %I MDPI AG %R 10.3390/s7123027 %X This paper reviews current state-of-the-art methods of measuring pH levels that are based on polymer materials. These include polymer-coated fibre optic sensors, devices with electrodes modified with pH-sensitive polymers, fluorescent pH indicators, potentiometric pH sensors as well as sensors that use combinatory approach for ion concentration monitoring. %K conductive polymer %K pH measurement %K response mechanism %K sensor application. %U http://www.mdpi.com/1424-8220/7/12/3027