Gradient micropattern immobilization of heparin and its interaction with cells
Gradient micropattern immobilization of heparin and its interaction with cells
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DOI：
10.1163/156856201750195270
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发表时间：
2001-01-01
影响因子：
3.6
通讯作者：
Imanishi, Y
中科院分区：
文献类型：
--
作者：
Ito, Y;Hayashi, M;Imanishi, Y
Heparin was immobilized on a polystyrene plate in a graded micropattern by photolithography. The micropattern was confirmed by staining with brilliant green. Tn the presence of basic fibroblast growth factor (bFGF), the growth of NIH3T3 cells was enhanced only in the heparin-immobilized regions. This result indicated that gradient-micropattern-immobilized heparin activated bFGF fur cell growth. In addition, the growth of cells was found to be affected by the surface density of immobilized heparin. The surface density was regulated by a gap length of 2 mum-width stripes immobilized with heparin. Although a high density (a region having short gap length) of immobilized heparin suppressed the cell growth in the absence of bFGF, it enhanced cell growth in the presence of bFGF The dependence of cell function on the density of immobilized heparin was visualized by gradient-micropattern-immobilization.
