Particle & Particle Systems Characterization
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Best of Particle - Enjoy Free Access
The Best of Particle compiles a selection of recently published interesting articles dealing with the synthesis, characterization, and application of particles in a variety of systems and devices.
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Recently Published Articles
- A General Approach to the Synthesis of M@Au/Ag (M = Au, Pd, and Pt) Nanorattles with Ultrathin Shells Less Than 2.5 nm Thick
Miaoxin Yang, Kyle D. Gilroy and Younan Xia
Version of Record online: 10 NOV 2016 | DOI: 10.1002/ppsc.201600279
M@Au/Ag (M = Au, Pd, and Pt) nanorattles with sizes as small as 15 nm have been successfully prepared by depositing an ultrathin Au shell prior to the galvanic replacement reaction to greatly enhance the mechanical strength of the nanorattles. The small Au@Au/Ag nanorattles can be made with strong absorption in the near-infrared for photothermal cancer therapy.
- Controlled Formation of Patchy Anisometric Fumed Silica Supraparticles in Droplets on Bent Superhydrophobic Surfaces
Marcel Sperling, Vivian J. Spiering, Orlin D. Velev and Michael Gradzielski
Version of Record online: 10 NOV 2016 | DOI: 10.1002/ppsc.201600176
Controlled formation of anisometric supraparticles is achieved via drying of colloidal suspension droplets on bent superhydrophobic surfaces. Being inhomogeneously accumulated at the water–air interface during an anisotropic evaporation process, the contained fumed silica promotes droplet deformation with predictable orientation. Using Fe3O4@SiO2 nanoparticles under magnetic field influence allows to position the patches precisely with respect to the principal axes of the anisometric supraparticles.
- A Comparative Study of Chemical Routes for Coating Gold Nanoparticles via Controlled RAFT Emulsion Polymerization
Sónia O. Pereira, Ana Barros-Timmons and Tito Trindade
Version of Record online: 7 NOV 2016 | DOI: 10.1002/ppsc.201600202
Colloidal core-shell Au nanoparticles protected by amphiphilic block copolymer have been investigated by applying distinct reversible addition fragmentation chain transfer emulsion polymerization routes, but only the “grafting from” strategy provides morphological well-defined hybrid nanoparticles.
- Nanodiamonds Interfere with Wnt-Regulated Cell Migration and Adipocyte Differentiation in Cells and Embryonic Development In Vivo
Hongyang Yi, Xiaojiao Li, Zhuyao Wang, Min Yin, Lihua Wang, Ali Aldalbahi, Nahed Nasser El-Sayed, Hui Wang, Nan Chen, Luonan Chen, Chunhai Fan and Haiyun Song
Version of Record online: 7 NOV 2016 | DOI: 10.1002/ppsc.201600208
Cellular uptake of nanodiamonds induces degradation of a Wnt signaling component and blocks signal transduction. This molecular crosstalk between nanodiamonds (NDs) and cellular signaling has profound effects on Wnt signaling-regulated biological processes, and provides the rationale for potential applications of NDs against cancers and other critical diseases.
- Development and Investigation of Ultrastable PbS/CdS/ZnS Quantum Dots for Near-Infrared Tumor Imaging
Fuqiang Ren, Blanca del Rosal, So Young An, Fan Yang, Elisa Carrasco, Antonio Benayas, Jung Kwon Oh, Daniel Jaque, Ángeles Juarranz de la Fuente, Fiorenzo Vetrone and Dongling Ma
Version of Record online: 2 NOV 2016 | DOI: 10.1002/ppsc.201600242
PbS/CdS/ZnS quantum dots (QDs) were extremely stable in commonly used biological buffers. Photoluminescence images taken on the 930 nm emitting PbS/CdS/ZnS core/shell/shell QDs reveals that they can still emit strongly after 30 month storage. With low QD concentration, significantly weak laser intensity, and considerably short signal integration time the QDs show high emission intensities even at injection depth of ≈2.5 mm.