Microfluidic devices for μ -TAS applications fabricated by polymer hot embossing

The effects of polymer melt rheology on the replication of surface microstructures in isothermal moulding

“…The method used has mainly been injection moulding [1,2] but hot embossing has also been used [3]. These studies are experimental (i.e.…”

Modelling of the filling of micro-cavities of finite geometry by amorphous polymers using hot-embossing

“…In contrast to other more conventional forming processes (extrusion, injection moulding), the hot-embossing process (Becker et al 1998;Heydermann et al 2001;Sahli et al 2005) may be performed at temperatures slightly higher than the glass transition temperature of the polymer (T g + 30°C) (Moynihan et al 2007).…”

Direct micrometer patterning and functionalization of polymer blend surfaces by using hot embossing

“…As alternatives, techniques grouped under the name of ''soft lithography'' have been proposed for the development of nano-and micro-structured organic and inorganic matter [6][7][8][9]. In recent years, many polymer-based microfabrication techniques [10] via microinjection molding [11,12], casting [4,13], and micro-hot embossing [14,15] have been developed. Among these approaches, micro-hot embossing consists on stamping a pattern into a polymer softened by raising the temperature of the polymer just above the glass transition temperature [10].…”