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We review recent work on the use of “smart” microgel particles as “nanoreactors” for the immobilization of metal nanoparticles as well as enzymes. A general feature of the microgel systems under consideration is their ability to react to external stimuli such as the pH or temperature of the system. Special emphasis is given to our recent research work on thermosensitive core–shell microgel particles...
We review recent work on the adsorption of proteins on two types of well-defined colloidal particles, namely on i) spherical polyelectrolytes that consist of a solid core onto which long chains of a polyelectrolyte are attached, and ii) core–shell microgels that have a shell of crosslinked poly(N-isopropylacrylamide) (pNiPAm) chains. The latter system may bear charges as well by copolymerization with...
We review the interaction of charged polymeric systems with proteins. In solutions of low ionic strength there are many examples of proteins attracted to polyelectrolytes even if both systems carry the same overall charge. This attractive interaction is widespread, having been observed for single polyelectrolyte chains as well as for polyelectrolytes grafted to surfaces (polyelectrolyte brushes) and...
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