id:"swepub:oai:DiVA.org:uu-171734"
Search: id:"swepub:oai:DiVA.org:uu-171734" > Acoustically enrich...
- 1 of 1
- Previous record
- Next record
- To hitlist
Acoustically enriching, large-depth aquatic sampler
-
- Jonsson, Jonas (author)
- Uppsala universitet,Mikrosystemteknik,ÅSTC
-
- Ogden, Sam (author)
- Uppsala universitet,Mikrosystemteknik
-
- Johansson, Linda (author)
- Uppsala universitet,Mikrosystemteknik
- show more...
- show less...
- (creator_code:org_t)
- 2012
- 2012
- English.
- In: Lab on a Chip. - 1473-0197 .- 1473-0189. ; 12:9, s. 1619-1628
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- In marine biology, it is useful to collect water samples when exploring the distribution and diversity of microbial communities in underwater environments. In order to provide, e.g., a miniaturized submersible explorer with the capability of collecting microorganisms, a compact sample enrichment system has been developed. The sampler is 30 mm long, 15 mm wide, and just a few millimetres thick. Integrated in a multilayer steel, polyimide and glass construction is a microfluidic channel with piezoelectric transducers, where microorganism and particle samples are collected and enriched, using acoustic radiation forces for gentle and labelless trapping. High-pressure, latchable valves, using paraffin as the actuation material, at each end of the microfluidic channel keep the collected sample pristine. A funnel structure raised above the surface of the device directs water into the microfluidic channel as the vehicle propels itself or when there is a flow across its hull. The valves proved leak proof to a pressure of 2.1 MPa for 19 hours and momentary pressures of 12.5 MPa, corresponding to an ocean depth of more than 1200 metres. By reactivating the latching mechanism, small leakages through the valves could be remedied, which could thus increase the leak-less operational time. Fluorescent particles, 1.9 µm in diameter, were successfully trapped in the microfluidic channel at flow rates up to 15 ml min-1, corresponding to an 18.5 cm s-1 external flow rate of the sampler. In addition, liquid-suspended GFP-marked yeast cells were successfully trapped.
Keyword
- Acoustic
- microorganism
- enriching
- trap
- valve
- paraffin
- sampler
- marine
- actuator
- TECHNOLOGY
- TEKNIKVETENSKAP
- Teknisk fysik med inriktning mot mikrosystemteknik
- Engineering Science with specialization in Microsystems Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Lab on a Chip (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Jonsson, Jonas
- Ogden, Sam
- Johansson, Linda
- Hjort, Klas
- Thornell, Greger
- Articles in the publication
- Lab on a Chip
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
