Dumbbell-like Bifunctional Au−Fe3O4 Nanoparticles

TL;DR: Synthetic protocols, structures, and physical properties of different types of magnetic–plasmonic hybrid nanoparticles are outlined and several examples of hyperthermia using magnetic and/or plAsmonic particles are described.

TL;DR: A novel method to induce site-specific deposition of plasmonic silver domain on controlled sites of seeded AgBr nanoparticles is designed and the significant role of seed size during seeded silver growth has been demonstrated.

Abstract: The design and synthesis of Janus particles has been of broad interest in recent years because of their importance for both of fundamental and applied sciences. [ 1 ] Initially, the main emphasis has been placed on controlling the surface patchiness of particles, where the anisotropy originates from asymmetrical surface functionalities. [ 2 ] More recently, multicompartmental particles have emerged that feature compositionally distinct pockets of distinct materials. [ 3 ] The multicompartmental architecture not only gives rise to defi ned surface patterns, but can result in distinct bulk compartments and therefore truly anisotropic functionalities. Although a number of methods to control surface patchiness, such as line-of-side deposition of metals, or selective surface modifi cation, are similarly applicable to organic as well as inorganic particles, very little is known about bulk-compartmentalized inorganic microand nanoparticles. [ 2b, 4 ] Preparation of purely inorganic particles with defi ned compartmentalization has been more challenging, and their preparation has been limited to toposelective surface modifi cation, [ 5 ] template-directed self-assembly, [ 6 ] controlled phase separation, [ 7 ] and controlled surface nucleation. [ 8 ] Impressive particles including dumbbell-, snowmanor acorn-like particles have been prepared based on these methods to date. Herein, we report a novel approach towards compartmentalized inorganic microparticles using EHD co-jetting with mixtures of inorganic precursors and organic polymers followed

TL;DR: In this paper, a two-stage dispersion polymerization method was used to synthesize polystyrene (PS) microspheres with hard shell and soft core, which were welded together and the submicron-sized pits were engraved on the surfaces of these particles.

TL;DR: As-synthesized iron oxide nanoparticles have a cubic spinel structure as characterized by HRTEM, SAED, and XRD and can be transformed into hydrophilic ones by adding bipolar surfactants, and aqueous nanoparticle dispersion is readily made.

TL;DR: Six dissimilar DNA targets with six Raman-labeled nanoparticle probes were distinguished, as well as two RNA targets with single nucleotide polymorphisms, and the current unoptimized detection limit of this method is 20 femtomolar.

TL;DR: In this article, a variety of gold catalysts are used to catalyze the oxidation of carbon monoxide at temperatures as low as −70 °C and are stable in a moistened gas atmosphere.

TL;DR: The synthesis of epitaxially grown, wurtzite CdSe/CdS core/shell nanocrystals is reported in this paper, where shells of up to three monolayers in thickness were grown on cores ranging in diameter from 23 to 39.