3D characterization of assemblies nanoparticles is great importance to determine their structure–property connection. Such investigations become increasingly more challenging when the larger and compact. In this paper, we propose an optimized approach for electron tomography minimize artifacts related beam broadening in high angle annular dark-field scanning transmission microscopy mode. These ...

Using host–guest chemistries in a biphasic system, novel supramolecular nanoparticle surfactant (s-NPS) with redox-responsiveness is presented to structure liquids. The situ assembly/jamming and disassembly/unjamming of s-NPSs at the oil–water interface are reversibly controlled by switchable redox process, imparting nanoscale redox-responsiveness, affecting assemblies on all length scales. “Sm...

Self-assembly of gold nanorods (NRs) with aspect ratio of ∼4.6 (12 nm in diameter and 50-60 nm in length) has been studied using transmission electron microscopy (TEM). Under appropriate conditions such as nanoparticle concentration, solvent evaporation, narrow size distribution, ionic strength, and surfactant concentration of the parent solution, gold nanorods assemble into one-, two-, and thr...

A novel synthetic route to polymer-coated ferromagnetic colloids of metallic cobalt has been developed. Well-defined end-functional polystyrenes were synthesized using controlled radical polymerization and used as surfactants in the thermolysis of dicobaltoctacarbonyl to afford uniform ferromagnetic nanoparticles. The presence of the polymer shell enabled prolonged colloidal stability of disper...

Self-assembly in natural and synthetic molecular systems can create complex aggregates or materials whose properties functionalities rise from their internal structure arrangement. The key microscopic features that control such assemblies remain poorly understood, nevertheless. Using classical density functional theory, we demonstrate how the intrinsic length scales interplay terms of interspec...

Chemically ordered, self-assembled FePt nanoparticle arrays with high magnetic anisotropy are considered a candidate medium for data storage beyond 1 Tbit/in. We report comprehensive structural and magnetic studies on thin (3 layer) assemblies of polyethylenimine (PEI) and 4 nm Fe58Pt42 nanoparticles using X-ray diffraction, small angle neutron scattering and magnetometry. We show that prior to...