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51
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Culbertson CT, Mickleburgh TG, Stewart-James SA, Sellens KA, Pressnall M. Micro total analysis systems: fundamental advances and biological applications. Anal Chem 2014; 86:95-118. [PMID: 24274655 PMCID: PMC3951881 DOI: 10.1021/ac403688g] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Tom G. Mickleburgh
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
| | | | - Kathleen A. Sellens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
| | - Melissa Pressnall
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
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52
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Huang YY, Hoshino K, Chen P, Wu CH, Lane N, Huebschman M, Liu H, Sokolov K, Uhr JW, Frenkel EP, Zhang X. Immunomagnetic nanoscreening of circulating tumor cells with a motion controlled microfluidic system. Biomed Microdevices 2013; 15:673-681. [PMID: 23109037 PMCID: PMC3584207 DOI: 10.1007/s10544-012-9718-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Combining the power of immunomagnetic assay and microfluidic microchip operations, we successfully detected rare CTCs from clinical blood samples. The microfluidic system is operated in a flip-flop mode, where a computer-controlled rotational holder with an array of microfluidic chips inverts the microchannels. We have demonstrated both theoretically and experimentally that the direction of red blood cell (RBC) sedimentation with regards to the magnetic force required for cell separation is important for capture efficiency, throughput, and purity. The flip-flop operation reduces the stagnation of RBCs and non-specific binding on the capture surface by alternating the direction of the magnetic field with respect to gravity. The developed immunomagnetic microchip-based screening system exhibits high capture rates (more than 90%) for SkBr3, PC3, and Colo205 cell lines in spiked screening experiments and successfully isolates CTCs from patient blood samples. The proposed motion controlled microchip-based immunomagnetic system shows great promise as a clinical tool for cancer diagnosis and prognosis.
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Affiliation(s)
- Yu-Yen Huang
- Department of Biomedical Engineering, The University of Texas at Austin, University Station, C0800, Austin, TX, 78712-0238, USA
| | - Kazunori Hoshino
- Department of Biomedical Engineering, The University of Texas at Austin, University Station, C0800, Austin, TX, 78712-0238, USA
| | - Peng Chen
- Department of Biomedical Engineering, The University of Texas at Austin, University Station, C0800, Austin, TX, 78712-0238, USA
| | - Chung-Hsien Wu
- Department of Biomedical Engineering, The University of Texas at Austin, University Station, C0800, Austin, TX, 78712-0238, USA
| | - Nancy Lane
- Harold C. Simons Comprehensive Cancer Center of the University of Texas Southwestern Medical Center, USA, 5323 Harry Hines Boulevard Dallas, TX, 7390-852, USA
| | - Michael Huebschman
- Harold C. Simons Comprehensive Cancer Center of the University of Texas Southwestern Medical Center, USA, 5323 Harry Hines Boulevard Dallas, TX, 7390-852, USA
| | - Huaying Liu
- Harold C. Simons Comprehensive Cancer Center of the University of Texas Southwestern Medical Center, USA, 5323 Harry Hines Boulevard Dallas, TX, 7390-852, USA
| | - Konstantin Sokolov
- Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Jonathan W. Uhr
- Harold C. Simons Comprehensive Cancer Center of the University of Texas Southwestern Medical Center, USA, 5323 Harry Hines Boulevard Dallas, TX, 7390-852, USA
| | - Eugene P. Frenkel
- Harold C. Simons Comprehensive Cancer Center of the University of Texas Southwestern Medical Center, USA, 5323 Harry Hines Boulevard Dallas, TX, 7390-852, USA
| | - Xiaojing Zhang
- Department of Biomedical Engineering, The University of Texas at Austin, University Station, C0800, Austin, TX, 78712-0238, USA
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53
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Tarn MD, Peyman SA, Pamme N. Simultaneous trapping of magnetic and diamagnetic particle plugs for separations and bioassays. RSC Adv 2013. [DOI: 10.1039/c3ra40237a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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54
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Liang L, Xuan X. Continuous sheath-free magnetic separation of particles in a U-shaped microchannel. BIOMICROFLUIDICS 2012; 6:44106. [PMID: 24175006 PMCID: PMC3500308 DOI: 10.1063/1.4765335] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 10/16/2012] [Indexed: 05/07/2023]
Abstract
Particle separation is important to many chemical and biomedical applications. Magnetic field-induced particle separation is simple, cheap, and free of fluid heating issues that accompany electric, acoustic, and optical methods. We develop herein a novel microfluidic approach to continuous sheath-free magnetic separation of particles. This approach exploits the negative or positive magnetophoretic deflection to focus and separate particles in the two branches of a U-shaped microchannel, respectively. It is applicable to both magnetic and diamagnetic particle separations, and is demonstrated through the sorting of 5 μm and 15 μm polystyrene particles suspended in a dilute ferrofluid.
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Affiliation(s)
- Litao Liang
- Department of Mechanical Engineering, Clemson University, Clemson, South Carolina 29634-0921, USA
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