PH-responsive superstructures prepared via the assembly of Fe₃O₄ amphipathic Janus nanoparticles.

ABSTRACT: The strategy of using Fe₃O₄ amphiphilic Janus nanoparticles (Fe₃O₄@AJNPs) bearing β-cyclodextrin (β-CD) and aminopyridine (APD) functionalized polymethyl methacrylate (PGMA) to construct pH-stimuli responsive co-assemblies through host-guest interactions between β-CD and APD was proposed. The spherical co-assemblies with an average diameter about 210 nm were excellent magnetic responsive and quite stable even up to 2 months in deionized water. The pH-liable capability of these co-assemblies was revealed by disassembly of the formed superstructures with destruction of the built inclusion complexes. The disassembly process was monitored by SEM, TEM, DLS and fluorescent molecules probe. After disassembly of the co-assemblies caused by protonation of

SUBMITTER: Cai S 

PROVIDER: S-EPMC6184715 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature