Morphological and chemical changes of aerosolized E. coli treated with a dielectric barrier discharge
dc.contributor | Aalto-yliopisto | fi |
dc.contributor | Aalto University | en |
dc.contributor.author | Romero-Mangado, Jaione | |
dc.contributor.author | Nordlund, Dennis | |
dc.contributor.author | Soberon, Felipe | |
dc.contributor.author | Deane, Graham | |
dc.contributor.author | Maughan, Kevin | |
dc.contributor.author | Sainio, Sami | |
dc.contributor.author | Singh, Gurusharan | |
dc.contributor.author | Daniels, Stephen | |
dc.contributor.author | Saunders, Ian T. | |
dc.contributor.author | Loftus, David | |
dc.contributor.author | Meyyappan, M. | |
dc.contributor.author | Koehne, Jessica | |
dc.contributor.author | Gandhiraman, Ram P. | |
dc.contributor.department | NASA Ames Research Center | |
dc.contributor.department | Stanford University | |
dc.contributor.department | Novaerus, Inc. | |
dc.contributor.department | Department of Electrical Engineering and Automation | |
dc.contributor.department | Dublin City University | |
dc.contributor.department | Universities Space Research Association | |
dc.date.accessioned | 2018-09-04T11:14:16Z | |
dc.date.available | 2018-09-04T11:14:16Z | |
dc.date.issued | 2016-03-01 | |
dc.description.abstract | This study presents the morphological and chemical modification of the cell structure of aerosolized Escherichia coli treated with a dielectric barrier discharge (DBD). Exposure to DBD results in severe oxidation of the bacteria, leading to the formation of hydroxyl groups and carbonyl groups and a significant reduction in amine functionalities and phosphate groups. Near edge x-ray absorption fine structure (NEXAFS) measurements confirm the presence of additional oxide bonds upon DBD treatment, suggesting oxidation of the outer layer of the cell wall. Electron microscopy images show that the bacteria undergo physical distortion to varying degrees, resulting in deformation of the bacterial structure. The electromagnetic field around the DBD coil causes severe damage to the cell structure, possibly resulting in leakage of vital cellular materials. The oxidation and chemical modification of the bacterial components are evident from the Fourier transform infrared spectroscopy and NEXAFS results. The bacterial reculture experiments confirm inactivation of airborne E. coli upon treating with DBD. | en |
dc.description.version | Peer reviewed | en |
dc.format.mimetype | application/pdf | |
dc.identifier.citation | Romero-Mangado , J , Nordlund , D , Soberon , F , Deane , G , Maughan , K , Sainio , S , Singh , G , Daniels , S , Saunders , I T , Loftus , D , Meyyappan , M , Koehne , J & Gandhiraman , R P 2016 , ' Morphological and chemical changes of aerosolized E. coli treated with a dielectric barrier discharge ' , Biointerphases , vol. 11 , no. 1 , 011009 . https://doi.org/10.1116/1.4941367 | en |
dc.identifier.doi | 10.1116/1.4941367 | |
dc.identifier.issn | 1934-8630 | |
dc.identifier.other | PURE UUID: d7faf0ec-fdb8-4750-9a52-dcc521f29a69 | |
dc.identifier.other | PURE ITEMURL: https://research.aalto.fi/en/publications/d7faf0ec-fdb8-4750-9a52-dcc521f29a69 | |
dc.identifier.other | PURE LINK: http://www.scopus.com/inward/record.url?scp=84958534696&partnerID=8YFLogxK | |
dc.identifier.other | PURE FILEURL: https://research.aalto.fi/files/27537623/1.4941367.pdf | |
dc.identifier.uri | https://aaltodoc.aalto.fi/handle/123456789/33824 | |
dc.identifier.urn | URN:NBN:fi:aalto-201809044944 | |
dc.language.iso | en | en |
dc.relation.ispartofseries | BIOINTERPHASES | en |
dc.relation.ispartofseries | Volume 11, issue 1 | en |
dc.rights | openAccess | en |
dc.subject.keyword | bacteria | |
dc.subject.keyword | x-ray absorption | |
dc.subject.keyword | fourier transforms | |
dc.title | Morphological and chemical changes of aerosolized E. coli treated with a dielectric barrier discharge | en |
dc.type | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä | fi |
dc.type.version | publishedVersion |