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Cell Patterning on Various Substrates Using Polyelectrolyte Multilayer and Microstructure of Poly(Ethylene Glycol)  

Shim, Hyun-Woo (Department of Chemical Engineering, Chungnam National University)
Lee, Ji-Hye (Department of Chemical Engineering, Chungnam National University)
Choi, Ho-Suk (Department of Chemical Engineering, Chungnam National University)
Lee, Chang-Soo (Department of Chemical Engineering, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.46, no.6, 2008 , pp. 1100-1106 More about this Journal
Abstract
In this study, we presented rapid and simple fabrication method of functionalized surface on various substrates as a universal platform for the selective immobilization of cells. The functionalized surface was achieved by using deposition of polyelectrolyte such as poly(allyamine hydrochloride) (PAH), poly(diallyldimethyl ammonium chloride) (PDAC), poly(4-ammonium styrene sulfonic acid) (PSS), poly(acrylic acid) (PAA) and fabrication of poly(ethylene glycol) (PEG) microstructure through micro-molding in capillaries (MIMIC) technique on each glass, poly(methyl methacrylate) (PMMA), polystyrene (PS) and poly(dimethyl siloxane) (PDMS) substrate. The polyelectrolyte multilayer provides adhesion force via strong electrostatic attraction between cell and surface. On the other hand, PEG microstructures also lead to prevent non-specific binding of cells because of physical and biological barrier. The characteristic of each modified surface was examined by using static contact angle measurement. The modified surface onto several substrates provides appropriate environment for cellular adhesion, which is essential technology for cell patterning with high yield and viability in the micropatterning technology. The proposed method is reproducible, convenient and rapid. In addition, the fabrication process is environmentally friendly process due to the no use of harsh solvent. It can be applied to the fabrication of biological sensor, biomolecules patterning, microelectronics devices, screening system, and study of cell-surface interaction.
Keywords
Surface Modification; Cell Immobilization; Micro-molding In Capillaries; Polyelectrolyte Multilayer;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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