Publications de Ana Maria Popa

Dynamic Perspective on the Function of Thermoresponsive Nanopores from in Situ AFM and ATIZ-IR Investigations

Jeffrey Alan Hubbell, Harry Heinzelmann, Ana Maria Popa

This article describes the morphological and chemical characterization of stimuli-responsive functionalized silicon surfaces provided in parallel by atomic force spectroscopy (A FM) and Fourier transform infrared spectroscopy (FT-IR) enhanced by the single ...

2010

Stimuli-responsive nanostructured surfaces

Ana Maria Popa

The coupling of stimuli-responsive macromolecules to nanostructured surfaces opens the perspective for the fabrication and integration of "smart" micro- and nano-electro-mechanical systems (MEMS&NEMS) in which the smallest motile unit is the polymeric chai ...

EPFL2009

Fabrication of nanopore arrays and ultrathin silicon nitride membranes by block-copolymer-assisted lithography

Jeffrey Alan Hubbell, Harry Heinzelmann, Raphaël Pugin, Ana Maria Popa

Here we show a method for patterning a thin metal film using self-assembled block-copolymer micelles monolayers as a template. The obtained metallic mask is transferred by reactive ion etching in silicon oxide, silicon and silicon nitride substrates, thus ...

2009

Surface Nanopatterning by Polymer Self-Assembly: from Applied Research to Industrial Applications

Jeffrey Alan Hubbell, Nicolas Blondiaux, Raphaël Pugin, Martha Liley, Ana Maria Popa

Complementary methods have been developed for surface nanostructuring using molecular self-assembly, reactive ion etching and replication techniques. First, controlled surface nanostructures with tunable lateral dimensions from tens of nanometer to tens of ...

2009