Responsive Polymerschichten. Schaltbare Oberfläche

Abstract

Responsive PolymerschichtenVASILIKIHier ist v 0 das ausgeschlossene Volumen für den Fall, dass zwischen den Kettensegmenten nur abstoßende Wechselwirkungen bestehen. Normalerweise nimmt die Qualität eines Lösemittels mit steigender Temperatur zu und mit sinkender Temperatur ab. Bei tiefen Temperaturen gibt es häu-

UV cross-linked smart microgel membranes as free-standing diffusion barriers and nanoparticle bearing catalytic films

“…Modern developments in membrane technology are aiming at fabrication of interactive membranes with tailored functionality, 1 superior mechanical properties, 2 controlled pore size, 3 switching capability, 4 and ability to respond to environmental stimuli. [5][6][7] Especially responsive nano-membranes are promising materials for nanotechnology, 8 because they can be used for a variety of applications like the separation of gases, 9,10 as carriers for catalysts, 11 for chromatography 12,13 or in cell culture applications for vertebrate cells. 14 Many of these responsive membranes are fabricated with stimuli-responsive polymers which are used to make macroscopic hydrogel sheets 7 or to functionalize other non-responsive membranes.…”

Reactive Surface Coatings Based on Polysilsesquioxanes: Universal Method toward Light-Responsive Surfaces

“…Hence, the wettability can be fine-tuned by defined adjustment of molecules on top of a surface, for example by means of self-assembled monolayers. − However, the resulting surfaces are static and can usually not be altered once they have been formed. To prepare adaptable surfaces, different approaches have been presented to realize a switchable wettability by immobilizing various stimuli-responsive moieties onto surfaces. − A switchable surface wettability was successfully demonstrated taking advantage of stimuli like pH, electrical potentials, , temperature, , or light. − …”

Poly-acrylic Acid Brushes and Adsorbed Proteins

“…Therefore, the understanding, stimulation and control of protein adsorption is of broad academic and applied interest. Manipulation of adsorption might start by functionalizing surfaces and interfaces by grafting polymers to the underlying substrates thereby changing surface chemistry and topography [2]. In particular, solvent-swollen polymer brushes can provide a soft micro-environment for adsorbed proteins that prevents conformational and structural changes, thus maintaining protein function, or even enhances the activity of the immobilized species [1,[3][4][5][6][7][8].…”