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Detail Koleksi
ArtikelHydrodynamic Focusing for A Micromachined Flow Cytometer  
Oleh: Lee, Gwo-Bin ; Hung, Chen-I ; Ke, Bin-Jo ; Huang, Guan-Ruey ; Hwei, Bao-Herng ; Lai, Hui-Fang
Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 123 no. 3 (2001), halaman 672-679.
Topik: magnetohydrodynamics; hydrodynamic focusing; micromachined; flow; cytometer
Ketersediaan
  • Perpustakaan Pusat (Semanggi)
    • Nomor Panggil: JJ89.2
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
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Isi artikelThis paper describes hydrodynamic focusing inside a micromachined flow cytometer. Flow cytometry is a process whereby cells are analyzed and sorted based on hydrodynamic focusing phenomenon and specific cellular characteristics. In this study, the hydrodynamic focusing phenomenon is first modeled by employing potential flow theory. Then the flow field inside the flow cytometer is numerically simulated. The effect of the device geometry and relative sheath and sample flow rate on the focusing of the center flow is explored systematically. At last, a micromachine - based flow chamber is designed and fabricated on plastic substrates as a micro flow cytometer. Hydrodynamic focusing is verified with the use of microscopic visualization of water sheath flows and dye - containing sample flow. Experimental data indicate that the size of focused sample stream can be reduced to about 3 µm, which is applicable to cell sorting and counting.
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