Anisotropic Self-Assembly of Organic–Inorganic Hybrid Microtoroids
Hammami, Mohamed Amen
Hedhili, Mohamed N.
Khashab, Niveen M.
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Smart Hybrid Materials (SHMs) lab
Imaging and Characterization Core Lab
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AbstractToroidal structures based on self-assembly of predesigned building blocks are well-established in the literature, but spontaneous self-organization to prepare such structures has not been reported to date. Here, organic–inorganic hybrid microtoroids synthesized by simultaneous coordination-driven assembly of amphiphilic molecules and hydrophilic polymers are reported. Mixing amphiphilic molecules with iron(III) chloride and hydrophilic polymers in water leads, within minutes, to the formation of starlike nanostructures. A spontaneous self-organization of these nanostructures is then triggered to form stable hybrid microtoroids. Interestingly, the toroids exhibit anisotropic hierarchical growth, giving rise to a layered toroidal framework. These microstructures are mechanically robust and can act as templates to host metallic nanoparticles such as gold and silver. Understanding the nature of spontaneous assembly driven by coordination multiple non-covalent interactions can help explain the well-ordered complexity of many biological organisms in addition to expanding the available tools to mimic such structures at a molecular level.
CitationAl-Rehili S, Fhayli K, Hammami MA, Moosa B, Patil S, et al. (2016) Anisotropic Self-Assembly of Organic–Inorganic Hybrid Microtoroids. Journal of the American Chemical Society. Available: http://dx.doi.org/10.1021/jacs.6b10080.
SponsorsThis work was supported by King Abdullah University of Science and Technology (KAUST). We thank Dr. Dalaver Anjum and Dr. Rachid Sougrat of the KAUST Imaging and Characterization Core Lab for helpful discussions.
PublisherAmerican Chemical Society (ACS)