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Hollow microgels

Hollow microgels
We investigate hollow shell-shell nanogels with two polymer shells that have different volume phase transition temperatures. By means of small angle neutron scattering (SANS) and employing contrast variation, we show that hollow shell-shell nanocontainers are ideal systems for controlled drug delivery. The temperature-responsive swelling of the inner shell controls the uptake and release, while the thermoresponsive swelling of the outer shell controls the size of the void and the colloidal stability.

Physical Chemistry of Complex Fluids:
Walter Richtering

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