https://scholars.lib.ntu.edu.tw/handle/123456789/501319
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Tai, Y.-H. | en_US |
dc.contributor.author | Lee, C.-W. | en_US |
dc.contributor.author | Chang, D.-M. | en_US |
dc.contributor.author | Lai, Y.-S. | en_US |
dc.contributor.author | DING-WEI HUANG | en_US |
dc.creator | Tai, Y.-H.;Lee, C.-W.;Chang, D.-M.;Lai, Y.-S.;Huang, D.-W.;Wei, P.-K. | - |
dc.date.accessioned | 2020-06-11T06:50:08Z | - |
dc.date.available | 2020-06-11T06:50:08Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/501319 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057401899&doi=10.1021%2facssensors.8b00258&partnerID=40&md5=6d2b70118184097ba9d979991e1dbdee | - |
dc.description.abstract | A sensitive tapered optical fiber tip combined with dielectrophoretic (DEP) trapping was used for rapid and label-free detection of bacteria in water. The angular spectrum of the optical field at the fiber tip was changed with the surrounding refractive index (RI). By measuring far-field intensity change at the defocus plane, the intensity sensitivity was up to 95 200%/RIU (RI unit), and the detection limit was 5.2 × 10-6 RIU at 0.5% intensity stability. By applying an AC voltage to a Ti/Al coated fiber tip and an indium-tin-oxide glass, the DEP force effectively trapped the Escherichia coli ( E. coli) near the fiber tip. Those bacteria can be directly measured from optical intensity change due to the increase of surrounding RI. By immobilizing the antibody on the Ti/Al fiber tip, the tests for specific K12 bacteria and nonspecific BL21 bacteria verified the specificity. The antibody-immobilized Ti/Al coated fiber tip with DEP trapping can detect bacteria at a concentration about 100 CFU/mL. | - |
dc.relation.ispartof | ACS Sensors | - |
dc.subject | defocused image; dielectrophoretic force; E. coli; fiber tip; refractive index detection | - |
dc.subject.other | aluminum; glass fiber; titanium; chemistry; electrophoresis; Escherichia coli; genetic procedures; isolation and purification; Aluminum; Biosensing Techniques; Electrophoresis; Escherichia coli; Optical Fibers; Titanium | - |
dc.title | Escherichia coli fiber sensors using concentrated dielectrophoretic force with optical defocusing method | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acssensors.8b00258 | - |
dc.identifier.scopus | 2-s2.0-85057401899 | - |
dc.relation.pages | 1196-1202 | - |
dc.relation.journalvolume | 3 | - |
dc.relation.journalissue | 6 | - |
item.fulltext | no fulltext | - |
item.grantfulltext | none | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Photonics and Optoelectronics | - |
crisitem.author.dept | Electrical Engineering | - |
crisitem.author.orcid | 0000-0001-5992-2139 | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。