A ppb level, miniaturized fast response amperometric nitric oxide sensor for asthma diagnostics
2013 (English)In: Micro Electro Mechanical Systems (MEMS), 2013 IEEE 26th International Conference on, New York: IEEE , 2013, 1001-1004 p.Conference paper (Refereed)
This paper reports on a novel miniaturized MEMS-based amperometric nitric oxide sensor that is suitable for a point of care testing device for asthma. The novelty lies in the combination of a high surface area microporous structured electrode, nano-structured Nafion that is coated on the side walls of the micropores, and liquid electrolyte. This combination allows detection of very low concentration (parts-per-billion) gas, has a high sensitivity of 4 mu A/ppm/cm(2) and has both a response and a recovery time of 6 s. The sensor is integrated with a PCB potentiostat to form a complete measuring module. The limit of detection of this sensor was estimated to be 0.3 ppb.
Place, publisher, year, edition, pages
New York: IEEE , 2013. 1001-1004 p.
, Proceedings IEEE Micro Electro Mechanical Systems, ISSN 1084-6999
ALD, gas sensor, nitric oxide, chemical sensor
IdentifiersURN: urn:nbn:se:kth:diva-108299DOI: 10.1109/MEMSYS.2013.6474416ISI: 000320549200255ScopusID: 2-s2.0-84875463160ISBN: 978-1-4673-5654-1OAI: oai:DiVA.org:kth-108299DiVA: diva2:579858
IEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013; Taipei; Taiwan; 20 January 2013 through 24 January 2013
QC 201301042013-01-042012-12-202013-08-14Bibliographically approved