Core-shell hybrid nanostructures have received an increased interest because of their many current and potential applications. Such nanostructures show combined properties of the core and shell which neither component can display alone. An increase in sensitivity of fluorescent chemo- and biodetection devices can be achieved as a response to external stimuli such as magnetic field. In this work, shells of fluorescent conjugated polymers and block copolymers (e.g. polythiophenes, poly-p-phenylenes) were prepared on magnetic (superparamagnetic) nanoparticles consisting of a magnetite core coated with a layer of silica by using surface-initiated living polymerization.  The goal of this research was to investigate the change in fluorescent properties as a function of silica shell thickness, order of sublayers in the conjugated block copolymer shell, as well the effect of applied magnetic field, both in thin-film powder and in colloidal solution.

Fluorescent multiresponsive nanostructures consisting of magnetite core and conjugated block copolymers

247th National Meeting (2014)

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