Show simple item record

dc.contributor.authorJohnston, I. D.
dc.contributor.authorDavis, J.B.
dc.contributor.authorRichter, R.
dc.contributor.authorHerbert, G. I.
dc.contributor.authorTracey, M.C.
dc.date.accessioned2013-06-25T13:46:48Z
dc.date.available2013-06-25T13:46:48Z
dc.date.issued2004
dc.identifier.citationJohnston , I D , Davis , J B , Richter , R , Herbert , G I & Tracey , M C 2004 , ' Elastomer-glass micropump employing active throttles ' Analyst , vol. 129 , no. 9 , pp. 829-834 . https://doi.org/10.1039/b407760c
dc.identifier.issn0003-2654
dc.identifier.otherPURE: 393262
dc.identifier.otherPURE UUID: 676cb33c-24a0-40f0-a809-172f7a849fba
dc.identifier.otherWOS: 000223642000006
dc.identifier.otherScopus: 4944254342
dc.identifier.urihttp://hdl.handle.net/2299/10927
dc.description.abstractWe report a reciprocating microfluidic pump, the Micro Throttle Pump (MTP), constructed in a relatively uncomplicated manner from glass and microstructured poly(dimethylsiloxane) (PDMS). Unconventionally, the MTP employs throttling of fluid flow as distinct from fully-closing valve structures. Accordingly, this technique offers the prospect of solid-phase suspension tolerance. The reported MTP employs piezoelectrically (PZT) actuated deformation of flow constrictions (throttles) fabricated from PDMS at the two ports of a central, PZT actuated pump chamber. By appropriate time-sequencing of the individual PZTs' actuation, pumping can be induced in either direction. PDMS' elasticity further facilitates throttle operation by virtue of allowing significant PZT flexure that is substantially independent of the underlying PDMS microstructure. In contrast, in a rigid substrate such as silicon, deformation is constrained to where underlying microstructured cavities exist and this restricts design options. We describe the construction and performance of a prototype MTP capable of pumping 300 mul min(-1) or alternatively generating a back-pressure of 5.5 kPa. Preliminary modelling of MTP operation is also presented.en
dc.format.extent6
dc.language.isoeng
dc.relation.ispartofAnalyst
dc.subjectMICROFLUIDIC SYSTEMS
dc.subjectDIFFUSER MICROPUMP
dc.subjectPUMPS
dc.subjectPOLY(DIMETHYLSILOXANE)
dc.subjectDEVICES
dc.subjectVALVES
dc.subjectBLOOD
dc.subjectCELLS
dc.titleElastomer-glass micropump employing active throttlesen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionMicrofluidics and Microengineering
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Engineering and Technology
rioxxterms.versionofrecordhttps://doi.org/10.1039/b407760c
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record