| 초록 |
Surfaces containing defined chemical gradients are important for various applications, including a sample library with an extremely dense variable set and a smart platform to direct molecular transport. In this regard, robust surface materials and reliable methods to form macro- to micro- scale chemical gradients are required. Poly-hydroxyethylmethacrylate (pHEMA) thin film could be one candidate as a hydrophilic base surface for gradient formation. Its surface can be converted to less hydrophilic- or even hydrophobic-one by surface treatment processes. We present a film formation process of pHEMA thin film, by optimizing photo-curing and spin-coating conditions. Well-defined chemical gradients on the pHEMA film formed by spatial surface treatment are also demonstrated. |
