Topological characterization of plasma-etched polymer surface using discontinuous percolation transition

摘要: Abstract Roughness parameters are traditionally obtained for the surface characterization of microfluidic devices as these easily computed from height profiles. However, provide limited topological information on channel geometry needed fluid flow or retention optimization. In this study, measures Minkowski functionals and cluster analysis were evaluated if can detect percolating channels traps in plasma-etched surfaces. Unlike functionals, distinguished onset microchannel formation discontinuous percolation transition. The size irregularly shaped was order parameter ( P ). Thus, may be used a measure automatic detection evaluation cavities various applications. Besides percolation, to obtain fractal properties nano-patterns nanofluidic device design.