@patent { , title = {Detection of helicobacter pylori}, abstract = {A method for detecting Helicobacter pylori in a subject's gastroenteral tract involves measuring a change in resistance of an electronic or electrochemical sensor, notably a polypyrrole film, on exposure to gas from the subject's lungs and/or stomach. Depending on the magnitude of the change (if any) a positive or negative result is indicated visually by electronics means. Two sensors are used, one of which receives a sample of gas which has passed through an amonia-absorbing means to provide a corrected baseline value for the ammonia. The invention also provides apparatus suitable for carrying out the method.}, publicationstatus = {Published}, url = {https://uwe-repository.worktribe.com/output/1071650}, keyword = {Centre for Research in Biosciences, Institute of Bio-Sensing Technology, patent}, year = {2003}, author = {Ratcliffe, Norman M. and Teare, C and Dunn, Chris and Cowell, D.C. and Penault, C and Chambers, P and Black, M.M} }