Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Hu, Xinghao | - |
dc.contributor.author | Goudu, Sandhya Rani | - |
dc.contributor.author | Torati, Sri Ramulu | - |
dc.contributor.author | Lim, Byeonghwa | - |
dc.contributor.author | Kim, Kunwoo | - |
dc.contributor.author | Kim, CheolGi | - |
dc.date.accessioned | 2018-01-25T01:09:23Z | - |
dc.date.available | 2018-01-25T01:09:23Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 1473-0197 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/5148 | - |
dc.description.abstract | A novel method based on remotely controlled magnetic forces of bio-functionalized superparamagnetic colloids using micromagnet arrays was devised to measure frictional force at the sub-picoNewton (pN) scale for bio-nano-/micro-electromechanical system (bio-NEMS/MEMS) interfaces in liquid. The circumferential motion of the colloids with phase-locked angles around the periphery of the micromagnets under an in-plane rotating magnetic field was governed by a balance between tangential magnetic force and drag force, which consists of viscous and frictional forces. A model correlating the phase-locked angles of the steady colloid rotation was formulated and validated by measuring the angles under controlled magnetic forces. Hence, the frictional forces on the streptavidin/Teflon interface between the colloids and the micromagnet arrays were obtained using the magnetic forces at the phase-locked angles. The friction coefficient for the streptavidin/Teflon interface was estimated to be approximately 0.036 regardless of both vertical force in the range of a few hundred pN and velocity in the range of a few tenths of μm s-1. © The Royal Society of Chemistry 2016. | - |
dc.language | English | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | An on-chip micromagnet frictionometer based on magnetically driven colloids for nano-bio interfaces | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/c6lc00666c | - |
dc.identifier.scopusid | 2-s2.0-84984783325 | - |
dc.identifier.bibliographicCitation | Lab on a Chip, v.16, no.18, pp.3485 - 3492 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | Adhesion | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | CELLS | - |
dc.subject.keywordPlus | FORCE MICROSCOPY | - |
dc.subject.keywordPlus | MAGNETOPHORESIS | - |
dc.subject.keywordPlus | MANIPULATION | - |
dc.subject.keywordPlus | NANOSCALE FRICTION | - |
dc.subject.keywordPlus | RESOLUTION | - |
dc.subject.keywordPlus | TWEEZERS | - |
dc.subject.keywordPlus | WEAR | - |
dc.citation.endPage | 3492 | - |
dc.citation.number | 18 | - |
dc.citation.startPage | 3485 | - |
dc.citation.title | Lab on a Chip | - |
dc.citation.volume | 16 | - |
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