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Kim, Taesung
Microfluidics & Nanomechatronics Lab (μFNM)
Research Interests
  • Microfluidics & Nanofluidics
  • Nanoscale Transport Phenomena
  • MEMS & BioMEMS
  • Nanofabrication & Nanomechatronics


Pneumatically controlled multi-level microchannel for separation and extraction of microparticles

DC Field Value Language Nam, Yoonkwang ko Kim, Minseok ko Kim, Taesung ko 2014-04-14T00:27:14Z - 2013-10-04 ko 2014-01 ko
dc.identifier.citation SENSORS AND ACTUATORS B-CHEMICAL, v.190, pp.86 - 92 ko
dc.identifier.issn 0925-4005 ko
dc.identifier.uri -
dc.description.abstract Most microfluidic devices are fabricated by using standard photolithography technology so that they are typically limited to a single, uniform microchannel depth. In this work, we employ a polydimethylsiloxane (PDMS) gray-scale photomask (PGSP) developed in our previous work for fabricating multi-level microchannels (MLMs) that hold a high potential for enhancing the separation performance and efficiency of microparticles. Since the PGSP provides a series of multiple, uniform and precise filter gaps in a microchannel, we describe an MLM-integrated microfluidic device that not only filters but also accumulates microparticles by size such as polystyrene beads and yeast cells. In addition, we integrate a pneumatic pressure controller that manually manipulates the filter gaps to enable sequential extraction of the separated, accumulated microparticles from the device for additional post-analysis. Since the PGSP-based soft-lithography technology provides a simple but powerful fabrication method for MLMs, we believe that both the fabrication method and the separation and extraction device can be widely used for micro total analysis systems that benefit from MLMs. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE SA ko
dc.title Pneumatically controlled multi-level microchannel for separation and extraction of microparticles ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84884536177 ko
dc.identifier.wosid 000326687700012 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 * 2015-02-28 * 2014-07-12 *
dc.identifier.doi 10.1016/j.snb.2013.08.024 ko
dc.identifier.url ko
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