Multi-responsive fluorescent polymer microparticles in response to temperature, electricity and hydrogen oxide

Multi-responsive fluorescent materials have attracted much attention in recent years, but the synthesis routes were always complicated. In this work, a simple method was proposed to fabricate multiple responsive fluorescent microparticles, which could respond to tree types of external stimuli, including temperature, electric potential and H 2 O 2 to change particle size and morphology. These microparticles were easily fabricated from radical polymerization of vinylidene ferrocene and N-isopropylacrylamide. Interestingly, when fluorescein (FITC) was encapsulated in the polymeric microparticles, fluorescence intensity of the obtained assemblies could change significantly with the three stimuli mentioned above. This work may provide a new path for the simple synthesis and construction of multi-responsive fluorescent microparticles.