Non-agglomerated silicon–organic nanoparticles and their nanocomplexes with oligonucleotides: synthesis and properties

Asya S. Levina,
Marina N. Repkova,
Nadezhda V. Shikina,
Zinfer R. Ismagilov,
Svetlana A. Yashnik,
Dmitrii V. Semenov,
Yulia I. Savinovskaya,
Natalia A. Mazurkova,
Inna A. Pyshnaya and
Valentina F. Zarytova

Full Research Paper
Published 21 Sep 2018

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1. Figure 1: (a) Evaluation of molar ratio of the amino groups in the nanoparticles to the phosphate groups, NH₂...
  
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2. Figure 2: IR (a) and UV (b) spectra of Si–NH₂.
  
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3. Figure 3: TEM images of Si–NH₂ (a) nanoparticles and Si–NH₂·ODN(1) nanocomplexes (b).
  
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4. Figure 4: (a) 3D and (b) 2D AFM images of the Si–NH₂·ODN(1) nanocomplex and (c) a suface profile along the li...
  
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5. Figure 5: Fluorescence microscopy images of A549 human lung adenocarcinoma cells after their incubation with ...
  
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6. Figure 6: Virus titer (log TCID₅₀/mL) of A/chicken/Kurgan/05/2005 virus (H5N1) in the presence of the samples...
  
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Beilstein J. Nanotechnol. 2018, 9, 2516–2525, doi:10.3762/bjnano.9.234

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Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles

Shanid Mohiyuddin,
Saba Naqvi and
Gopinath Packirisamy

Full Research Paper
Published 20 Sep 2018

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1. Figure 1: (A) Schematic representation for the preparation of CaP@5-FU NPs. (B) The UV–visible spectrum of Ca...
  
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2. Figure 2: (A) The hydrodynamic diameter and (B) zeta potential of CaP@5-FU NPs in PBS buffer. (C) The FTIR sp...
  
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3. Figure 3: The X-ray diffraction pattern of (A) CaP NPs and (B) CaP@5-FU NPs. (C) TEM and (D) FE-SEM micrograp...
  
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4. Figure 4: Analysis of cell viability by MTT assay for (A) NIH 3T3, (B) A549 and (C) HCT-15 cells upon CaP@5-F...
  
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5. Figure 5: Fluorescence microscopy images of (A) AO/EB stained A549 and HCT-15 cells after 0.5 IC₅₀ and IC₅₀ w...
  
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6. Figure 6: FE-SEM micrograph of untreated control cells A549 and HCT-15 along with CaP@5-FU treated cells at IC...
  
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7. Figure 7: Flow cytometric analysis of (A) CellRox deep red for ROS quantification and intensity of propidium ...
  
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8. Figure 8: (A) Gene expression studies of proapoptotic and antiapoptotic genes in untreated and CaP@5-FU NP-tr...
  
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Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233

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Nanocellulose: Recent advances and its prospects in environmental remediation

Katrina Pui Yee Shak,
Yean Ling Pang and
Shee Keat Mah

Review
Published 19 Sep 2018

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1. Figure 1: Size chart of nanocellulose based on material length (with microscopic images of various nanocellul...
  
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2. Figure 2: The structures of (a) cellulose nanofibers (CNFs) and (b) cellulose nanocrystals (CNCs) produced fr...
  
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3. Figure 3: Resultant chemical structures of nanocellulose prepared via (a) mechanical refining, enzymatic hydr...
  
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4. Figure 4: The morphology of MNC forward osmosis membranes with amino silane functionality as well as Pt and A...
  
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Beilstein J. Nanotechnol. 2018, 9, 2479–2498, doi:10.3762/bjnano.9.232

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Effect of electrospinning process variables on the size of polymer fibers and bead-on-string structures established with a 2³ factorial design

Paulina Korycka,
Adam Mirek,
Katarzyna Kramek-Romanowska,
Marcin Grzeczkowicz and
Dorota Lewińska

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Published 17 Sep 2018

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1. Figure 1: Scheme of the apparatus for the electrospinning process.
  
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2. Figure 2: (A) A schematic of the measuring procedure of the size of beads and the diameter of the fiber (wher...
  
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3. Figure 3: Geometric shape of the liquid meniscus at the outlet of the nozzle for 20% PVP solution with flow r...
  
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4. Figure 4: SEM micrographs of nanofibers obtained under various conditions: (1) PVP 8% (µ−, Q−, U−); (2) PVP 8...
  
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5. Figure 5: Response surface plots presenting the dependence of the diameter of the obtained bead-free fibers (D...
  
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6. Figure 6: Response surface plots presenting the dependence of the diameter of the obtained bead-free fibers (D...
  
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7. Figure 7: Response surface plots presenting the dependence of the diameter of the obtained bead-free fibers (D...
  
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8. Figure 8: Response surface plots presenting the dependence of the diameter of the obtained beaded fibers (d) ...
  
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9. Figure 9: Response surface plots presenting the dependence of the diameter of the obtained beaded fibers (d) ...
  
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10. Figure 10: Response surface plots presenting the dependence of the diameter of the obtained beaded fibers (d) ...
  
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11. Figure 11: Response surface plots presenting the dependence of the size of obtained beads (d_b) on the electric...
  
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12. Figure 12: Response surface plots presenting the dependence of the size of obtained beads (d_b) on the electric...
  
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13. Figure 13: Response surface plots presenting the dependence of the size of obtained beads (d_b) on the dynamic ...
  
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Beilstein J. Nanotechnol. 2018, 9, 2466–2478, doi:10.3762/bjnano.9.231

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High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)₁₋_x(MnSb)_x alloy

Leonid N. Oveshnikov,
Elena I. Nekhaeva,
Alexey V. Kochura,
Alexander B. Davydov,
Mikhail A. Shakhov,
Sergey F. Marenkin,
Oleg A. Novodvorskii,
Alexander P. Kuzmenko,
Alexander L. Vasiliev,
Boris A. Aronzon and
Erkki Lahderanta

Full Research Paper
Published 14 Sep 2018

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1. Figure 1: (a) Magnetization as a function of the magnetic field for sample GM3 at T = 300 K. Measurements wer...
  
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2. Figure 2: Room-temperature saturation magnetization (M_sat) as a function of the carrier concentration (N_p) (t...
  
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3. Figure 3: Magnetotransport properties of sample GM3: (a) Field dependence of the anomalous Hall component at ...
  
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4. Figure 4: TEM images of the film cross section after annealing (sample GM3): (a) bright-field image, (b) HRTE...
  
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5. Figure 5: (a,d) HRTEM images of sample areas. (b,e) Corresponding two-dimensional Fourier spectra. (c,f) Calc...
  
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6. Figure 6: AFM (a,c) and MFM (b,d) images of the same surface at 303 K (a,b) and 413 K (c,d). AFM (e) and MFM ...
  
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Beilstein J. Nanotechnol. 2018, 9, 2457–2465, doi:10.3762/bjnano.9.230

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Evidence of friction reduction in laterally graded materials

Roberto Guarino,
Gianluca Costagliola,
Federico Bosia and
Nicola Maria Pugno

Full Research Paper
Published 13 Sep 2018

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1. Figure 1: Schematic of the numerical models used in this work. Left: 2D discretization in springs and masses ...
  
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2. Figure 2: Dimensionless friction force as function of time for the non-graded material: SBM solution for dif...
  
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3. Figure 3: Examples of stepwise linearly increasing and triangular property gradients considered in this work ...
  
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4. Figure 4: Effect of a gradient in the local coefficients of friction on the global static coefficient of fric...
  
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5. Figure 5: Propagation of the detachment front at the static friction threshold (left) and immediately after (...
  
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6. Figure 6: Dimensionless friction force as function of time for two values of Δ, calculated using the SBM and ...
  
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7. Figure 7: Effect of a gradient in the local coefficients of friction on the global dynamic coefficient of fri...
  
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8. Figure 8: Effect of a gradient in the local coefficients of friction on the global static coefficient of fric...
  
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9. Figure 9: Effect of a gradient in the Young’s modulus on the global static coefficient of friction, expressed...
  
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10. Figure 10: Effect of a gradient in the Young’s modulus on the global dynamic coefficient of friction, expresse...
  
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11. Figure 11: Effect of a triangular gradient in the Young’s modulus on the global static coefficient of friction...
  
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12. Figure 12: Propagation of the detachment front at the static friction threshold (left) and immediately after (...
  
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Beilstein J. Nanotechnol. 2018, 9, 2443–2456, doi:10.3762/bjnano.9.229

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Thickness-dependent photoelectrochemical properties of a semitransparent Co₃O₄ photocathode

Malkeshkumar Patel and
Joondong Kim

Full Research Paper
Published 12 Sep 2018

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1. Figure 1: (a) Kirkendall diffusion-induced growth of porous Co₃O₄. (b) X-ray diffraction pattern of Co₃O₄ fil...
  
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2. Figure 2: (a) Optical characteristics including the transmittance and absorbance spectra of Co₃O₄ films. (b) ...
  
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3. Figure 3: Thickness-dependent linear sweep voltammetry of a Co₃O₄ working electrode under pulsed light. (a) 0...
  
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4. Figure 4: Surface morphology of the 170 nm thick Co₃O₄ film on FTO/glass showing (a) the pores with diameters...
  
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5. Figure 5: (a) Transmittance electron micrograph featuring nanocrystalline features of a Co₃O₄ electrode prepa...
  
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6. Figure 6: (a) PEC cell setup by using dual Co₃O₄ electrodes to show O₂ gas generation in OER side and H₂ gas ...
  
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7. Figure 7: PEC cell setup with dual Co₃O₄ electrodes for volumetric measurements.
  
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8. Figure 8: (a) Current density as a function of the time. The Co₃O₄ electrode was biased at 1.75 V in 1 M KOH ...
  
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Beilstein J. Nanotechnol. 2018, 9, 2432–2442, doi:10.3762/bjnano.9.228

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ZnO-nanostructure-based electrochemical sensor: Effect of nanostructure morphology on the sensing of heavy metal ions

Marina Krasovska,
Vjaceslavs Gerbreders,
Irena Mihailova,
Andrejs Ogurcovs,
Eriks Sledevskis,
Andrejs Gerbreders and
Pavels Sarajevs

Full Research Paper
Published 11 Sep 2018

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1. Figure 1: Structure diagrams of the electrical measurement cell and electrodes. Measurement cell consists of ...
  
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2. Figure 2: SEM images of as-synthesized ZnO nanostructure arrays: a) nanoneedles, b) nanorods [15], c) nanotubes [15].
  
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3. Figure 3: XRD pattern of ZnO nanorod and nanotube arrays. Inset: EDS spectrum of the as-synthesized samples.
  
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4. Figure 4: CV curves of aqueous Pb(NO₃)₂ solution on ZnO electrodes with different morphologies: (a) nanorods,...
  
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5. Figure 5: CV curves of aqueous Cd(NO₃)₂ solution on ZnO electrodes with different morphologies: (a) nanorods,...
  
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6. Figure 6: Sedimentation of (a) Pb(NO₃)₂ and (b) Cd(NO₃)₂ on the surface of ZnO nanotubes.
  
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7. Figure 7: (a) CV curve for the concentration of 1.5 mM Pb(NO₃)₂ on ZnO nanoplates (red) compared to the previ...
  
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8. Figure 8: DPV curves for different ZnO morphologies: (a) untreated Cr electrodes, (b) nanorods, (c) nanoneedl...
  
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Beilstein J. Nanotechnol. 2018, 9, 2421–2431, doi:10.3762/bjnano.9.227

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Droplet-based synthesis of homogeneous magnetic iron oxide nanoparticles

Christian D. Ahrberg,
Ji Wook Choi and
Bong Geun Chung

Full Research Paper
Published 10 Sep 2018

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1. Figure 1: Schematic of the experimental setup showing the three syringe pumps for the reagent solutions and c...
  
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2. Figure 2: Time-lapse microscopy images of droplet generation inside the Tygon tubing (A). Graph of droplet vo...
  
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3. Figure 3: TEM images of nanoparticles synthesized by conventional batch synthesis and in droplet capillary re...
  
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4. Figure 4: Histograms of magnetic nanoparticle size of particles synthesized in batch (A), and in droplets (B)...
  
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5. Figure 5: Analysis of particle sizes in droplet synthesis. Nanoparticle diameter as a function of the residen...
  
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Beilstein J. Nanotechnol. 2018, 9, 2413–2420, doi:10.3762/bjnano.9.226

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Adhesive contact of rough brushes

Qiang Li and
Valentin L. Popov

Full Research Paper
Published 07 Sep 2018

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1. Figure 1: Simulated surface of a rough brush (blue) in adhesive contact with an elastic half-space (green). A...
  
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2. Figure 2: The scheme of indenting and pull-off stages of an adhesive contact of exponentially distributed pil...
  
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3. Figure 3: An example of a pillar structure in compression and pull-off contact: (a) load–distance relation; (...
  
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4. Figure 4: (a) Relation between the compressive force and adhesive force; (b) relation for different values of ...
  
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5. Figure 5: (a) Dependence of the coefficient C on the characteristic length in region I (Figure 4); (b) the maximum va...
  
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6. Figure 6: (a) Dependence of adhesion coefficient on the normalized roughness in region I (Figure 4) for different exp...
  
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Beilstein J. Nanotechnol. 2018, 9, 2405–2412, doi:10.3762/bjnano.9.225

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SERS active Ag–SiO₂ nanoparticles obtained by laser ablation of silver in colloidal silica

Cristina Gellini,
Francesco Muniz-Miranda,
Alfonso Pedone and
Maurizio Muniz-Miranda

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Published 06 Sep 2018

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1. Figure 1: UV–visible absorption spectra of colloidal silica (A) and Ag-doped silica suspension before (B) and...
  
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2. Figure 2: TEM micrographs of silica colloidal nanoparticles after laser ablation of silver.
  
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3. Figure 3: SERS spectra of bpy in Ag-doped silica colloid by excitation with the 514 nm (B) and 1064 nm (C) la...
  
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4. Figure 4: Calculated normal modes in terms of Cartesian displacements, corresponding to the prominent bands o...
  
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Beilstein J. Nanotechnol. 2018, 9, 2396–2404, doi:10.3762/bjnano.9.224

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Hydrothermal-derived carbon as a stabilizing matrix for improved cycling performance of silicon-based anodes for lithium-ion full cells

Mirco Ruttert,
Florian Holtstiege,
Jessica Hüsker,
Markus Börner,
Martin Winter and
Tobias Placke

Full Research Paper
Published 05 Sep 2018

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1. Figure 1: SEM micrographs of the different synthesized Si/C composite materials with a carbon to silicon rati...
  
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2. Figure 2: FIB-SEM cross section of the C:Si 80:20 composite (a, b) and SEM micrographs of the pure Si-NPs (c,...
  
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3. Figure 3: TGA results (a), XRD patterns (b) and Raman spectra (c) of the Si/C composites with a carbon to sil...
  
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4. Figure 4: Constant current rate performance investigations at different charge/discharge currents (a) of the ...
  
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5. Figure 5: SEM micrographs of cycled electrodes after 13 cycles (including 3 formation cycles) of the C:Si 90:...
  
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6. Figure 6: Constant current cycling of prelithiated (a, b) and non-prelithiated (a, c) C:Si 90:10 negative ele...
  
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7. Figure 7: First cycle cell voltage (a, c) and anodic potential (b, d) profile using a full cell set-up with a...
  
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8. Figure 8: Development of the anode (negative electrode) and cathode (positive electrode) potential vs Li/Li⁺ ...
  
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Beilstein J. Nanotechnol. 2018, 9, 2381–2395, doi:10.3762/bjnano.9.223

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High-throughput micro-nanostructuring by microdroplet inkjet printing

Hendrikje R. Neumann and
Christine Selhuber-Unkel

Full Research Paper
Published 04 Sep 2018

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1. Figure 1: (A) Schematic representation of the operational principle of the Fuji Dimatix DMP-2800 printing hea...
  
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2. Figure 2: (A) Pattern of gold nanoparticles on the reference sample after spin coating of a 10 × 10 mm silico...
  
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3. Figure 3: SEM images of size and droplet shape on the five different materials (A–E) and nanodot distribution...
  
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4. Figure 4: Distribution of the droplet diameter of the micellar gold nanoparticle solution on different materi...
  
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5. Figure 5: Surface topography imaged by atomic force microscopy for: (A) poly-silicon, (B) amorphous silicon o...
  
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6. Figure 6: Boxchart of nanoparticle separation distance in the center of microcircles for each substrate mater...
  
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Beilstein J. Nanotechnol. 2018, 9, 2372–2380, doi:10.3762/bjnano.9.222

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Directional light beams by design from electrically driven elliptical slit antennas

Shuiyan Cao,
Eric Le Moal,
Quanbo Jiang,
Aurélien Drezet,
Serge Huant,
Jean-Paul Hugonin,
Gérald Dujardin and
Elizabeth Boer-Duchemin

Full Research Paper
Published 03 Sep 2018

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1. Figure 1: Schematics of the experiment. A single (a) circular or (b) elliptical slit etched in a 200 nm gold ...
  
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2. Figure 2: Working principle of an elliptical slit antenna: control of the phase. At a planar surface, the pha...
  
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3. Figure 3: Working principle of an elliptical slit antenna: shape of the emitted beams. (a) The intersection o...
  
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4. Figure 4: Control of the emission direction: effect of the eccentricity. (a–c) Transmission optical images un...
  
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5. Figure 5: Angular emission pattern: effect of the excitation site. (a) Schematic of the experiment (inset: a ...
  
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6. Figure 6: Angular spread: effect of the eccentricity. (a) Half width at half maximum (HWHM) of the angular di...
  
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7. Figure 7: Lobe shapes. (a–h) Theoretical emission patterns from the elliptical slit antennas upon excitation ...
  
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8. Figure 8: Where does the light go? Theoretical calculation of the Poynting vector: ratio of the light flux em...
  
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9. Figure 9: Theoretical E-field maps in the slit. (a–f) Spatial distribution of the square modulus of the total...
  
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10. Figure 10: Schematic of the experimental setup. An STM head is mounted on top of an inverted optical microscop...
  
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Beilstein J. Nanotechnol. 2018, 9, 2361–2371, doi:10.3762/bjnano.9.221

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Pinning of a ferroelectric Bloch wall at a paraelectric layer

Vilgelmina Stepkova and
Jiří Hlinka

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Published 31 Aug 2018

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1. Figure 1: Domain structure with -oriented 180-degree domain walls in a) pure BaTiO₃, b) BaTiO₃–SrTiO₃ superla...
  
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2. Figure 2: Schematic illustration of polarization passing across the 180-degree domain wall in pure rhombohedr...
  
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3. Figure 3: Relaxed profile of the polarization components across 180-degree ferroelectric wall in rhombohedral...
  
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4. Figure 4: Relaxed profile of the polarization components across 180-degree ferroelectric wall in rhombohedral...
  
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5. Figure 5: Relaxed profile of the polarization components across 180-degree ferroelectric walls in rhombohedra...
  
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6. Figure 6: Variation of the P_t component (a) with increasing distance between domain walls and (b) with the th...
  
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7. Figure 7: Landau part of the domain wall energy density as a function of the position of the ferroelectric do...
  
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8. Figure 8: Calculated hysteresis loop demonstrating switching of the P_t component of the Bloch wall located at...
  
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Beilstein J. Nanotechnol. 2018, 9, 2356–2360, doi:10.3762/bjnano.9.220

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Magnetism and magnetoresistance of single Ni–Cu alloy nanowires

Andreea Costas,
Camelia Florica,
Elena Matei,
Maria Eugenia Toimil-Molares,
Ionel Stavarache,
Andrei Kuncser,
Victor Kuncser and
Ionut Enculescu

Full Research Paper
Published 30 Aug 2018

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1. Figure 1: (a, c, d) SEM images (at different magnifications) of a Ni–Cu alloy nanowire grown electrochemicall...
  
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2. Figure 2: Magnetoresistance measurements obtained on the four single Ni–Cu alloy nanowires analyzed (correspo...
  
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3. Figure 3: The perpendicular magnetoresistance as a function of the induction of the magnetic field (left colu...
  
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4. Figure 4: Hysteresis loops showing the average magnetic moment of Ni atoms as a function of the applied magne...
  
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5. Figure 5: Magnetization reversal in almost perpendicular geometry at two different values of saturation magne...
  
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6. Figure 6: Magnetization reversal in almost perpendicular geometry in Ni–Cu alloy nanowires with diameters of ...
  
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7. Figure 7: Saturation field strength as a function of the spontaneous magnetization obtained by micromagnetic ...
  
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8. Figure 8: (a) Ni–Cu alloy nanowires placed on SiO2/Si substrates between the interdigitated metallic electrod...
  
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Beilstein J. Nanotechnol. 2018, 9, 2345–2355, doi:10.3762/bjnano.9.219

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Block copolymers for designing nanostructured porous coatings

Roberto Nisticò

Review
Published 29 Aug 2018

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1. Figure 1: a) Phase diagram of diblock copolymer predicted by SCMF theory. Reprinted with permission from [41], co...
  
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2. Figure 2: Schematic representation of the solvent evaporation in a thin film made by block copolymer. At the ...
  
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3. Figure 3: SEM micrographs of PS-b-PEO films after heating at 90 °C and washing with water. a) PS-b-PEO (18.5-b...
  
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4. Figure 4: a) Atomic force microscopy (AFM) images of a composite nanoporous membrane: detail of the Si micros...
  
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5. Figure 5: Schematic representation of different micellar architectures. Hydrophilic polar heads are indicated...
  
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6. Figure 6: Top-view (left) and tilted 60° (right) SEM micrographs of PS₉₆₂-b-PEO₃₄₀₉ (a, b), PS₅₆₃-b-PEO₁₆₁₄ (...
  
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7. Figure 7: Schematic cross section of a screen filter (A) and a depth filter (B). Reprinted with permission fr...
  
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Beilstein J. Nanotechnol. 2018, 9, 2332–2344, doi:10.3762/bjnano.9.218

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Nanotribology

Enrico Gnecco,
Susan Perkin,
Andrea Vanossi and
Ernst Meyer

Editorial
Published 28 Aug 2018

Beilstein J. Nanotechnol. 2018, 9, 2330–2331, doi:10.3762/bjnano.9.217

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Performance analysis of rigorous coupled-wave analysis and its integration in a coupled modeling approach for optical simulation of complete heterojunction silicon solar cells

Ziga Lokar,
Benjamin Lipovsek,
Marko Topic and
Janez Krc

Full Research Paper
Published 28 Aug 2018

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1. Figure 1: Vertical cross-section of a sliced three-layer structure with texture applied to the bottom layer (...
  
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2. Figure 2: Principle of the coupled modeling approach (CMA). RCWA is applied to the parts of the structure whe...
  
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3. Figure 3: Schematic representation of the simulated HJ Si solar cell structure including illustration of the ...
  
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4. Figure 4: The top and cross-sectional views of the simulated partial structures, applied to the front part of...
  
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5. Figure 5: Analysis of the RCWA convergence for the nanoscale textures. All graphs on the left hand side corre...
  
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6. Figure 6: Analysis of RCWA convergence for micrometer-sized textures. Left hand side graphs correspond to the...
  
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7. Figure 7: The effect of increasing the pyramid fraction (PF) in the texture in the front part of the solar ce...
  
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8. Figure 8: Simulated absorptances in the c-Si layer of the HJ Si solar cell using RCWA, RT/TMM (CROWM simulato...
  
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Beilstein J. Nanotechnol. 2018, 9, 2315–2329, doi:10.3762/bjnano.9.216

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Metal–dielectric hybrid nanoantennas for efficient frequency conversion at the anapole mode

Valerio F. Gili,
Lavinia Ghirardini,
Davide Rocco,
Giuseppe Marino,
Ivan Favero,
Iännis Roland,
Giovanni Pellegrini,
Lamberto Duò,
Marco Finazzi,
Luca Carletti,
Andrea Locatelli,
Aristide Lemaître,
Dragomir Neshev,
Costantino De Angelis,
Giuseppe Leo and
Michele Celebrano

Full Research Paper
Published 27 Aug 2018

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1. Figure 1: (a) Schematic of the investigated sample: plain AlGaAs nanopillar serving as a reference structure ...
  
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2. Figure 2: a) Electric field vector map at 1550 nm for the proposed structure. b) Electric and c) magnetic fie...
  
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3. Figure 3: a) Electric field enhancement at 1550 nm in the xy-plane for the isolated type 1 (r = 410 nm) nanoc...
  
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4. Figure 4: (a) SH nonlinear maps collected from the hybrid antennas and from the reference structures. From le...
  
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5. Figure 5: Polar plots of SHG emission from (a) the reference elements and (b) the hybrid antennas as a functi...
  
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6. Figure 6: Emission spectrum of a type-2 pillar and its relative hybrid structure. The hybrid structure featur...
  
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7. Figure 7: Sketch of the nonlinear setup employed for our measurements. The setup allows for the acquisition o...
  
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Beilstein J. Nanotechnol. 2018, 9, 2306–2314, doi:10.3762/bjnano.9.215

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Hierarchical heterostructures of Bi₂MoO₆ microflowers decorated with Ag₂CO₃ nanoparticles for efficient visible-light-driven photocatalytic removal of toxic pollutants

Shijie Li,
Wei Jiang,
Shiwei Hu,
Yu Liu,
Yanping Liu,
Kaibing Xu and
Jianshe Liu

Full Research Paper
Published 27 Aug 2018

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1. Figure 1: XRD patterns of Ag₂CO₃/Bi₂MoO₆ heterojunctions, bare Bi₂MoO₆ and Ag₂CO₃.
  
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2. Figure 2: SEM images of (a, b) bare Bi₂MoO₆ and (c, d) ACO/BMO-30.
  
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3. Figure 3: (a–c) TEM images of ACO/BMO-30; (d) EDS pattern of ACO/BMO-30.
  
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4. Figure 4: UV–vis diffuse reflection spectra of bare Bi₂MoO₆, Ag₂CO₃ and Ag₂CO₃/Bi₂MoO₆ heterostructures.
  
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5. Figure 5: PL spectra of bare Bi₂MoO₆ and ACO/BMO-30.
  
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6. Figure 6: (a) Photocatalytic degradation of RhB over different samples under visible light. (b) Rate constant...
  
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7. Figure 7: Photocatalytic degradation of (a) MO and (b) TC over different samples under visible light.
  
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8. Figure 8: (a) The cycling performance of ACO/BMO-30. (b) The XRD patterns of ACO/BMO-30 before and after five...
  
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9. Figure 9: Radical-scavenger tests over ACO/BMO-30.
  
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10. Figure 10: Proposed photocatalytic degradation mechanism of Ag₂CO₃/Bi₂MoO₆.
  
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Beilstein J. Nanotechnol. 2018, 9, 2297–2305, doi:10.3762/bjnano.9.214

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Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

Lukáš Ondič,
Marian Varga,
Ivan Pelant,
Alexander Kromka,
Karel Hruška and
Robert G. Elliman

Full Research Paper
Published 24 Aug 2018

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1. Figure 1: Samples under study. (a) Schematic cross section of the PhC sample. Red line shows the spatial dist...
  
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2. Figure 2: PL spectra of the PhC samples detected with an optical fiber in the direction normal to the sample ...
  
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3. Figure 3: Angle-resolved PL spectra of the PhCs with h_PhC2 on the SiNC-rich layer measured along the relevant...
  
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4. Figure 4: Micro-PL results for the PhCs fabricated on a SiNC-rich SiO₂ layer collected with the objective hav...
  
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5. Figure 5: (a) The peak enhancement factor defined as a ratio of the leaky mode extracted PL intensity at the ...
  
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Beilstein J. Nanotechnol. 2018, 9, 2287–2296, doi:10.3762/bjnano.9.213

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Nanoscale characterization of the temporary adhesive of the sea urchin Paracentrotus lividus

Ana S. Viana and
Romana Santos

Full Research Paper
Published 24 Aug 2018

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1. Figure 1: a) Collection of Paracentrotus lividus footprints on mica. b) Detailed view of a sea urchin tube fo...
  
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2. Figure 2: Peak force tapping AFM (PFT-AFM) image (a) and height profile (b) of Paracentrotus lividus moist fo...
  
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3. Figure 3: Peak force tapping AFM (PFT-AFM) images of moist adhesive material deposited by the tube feet of Pa...
  
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4. Figure 4: Peak force tapping AFM (PFT-AFM) 3D height images and profiles of small-sized areas of the moist ad...
  
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5. Figure 5: Peak force tapping AFM (PFT-AFM) with quantitative nanomechanical (QNM) software for analysis of he...
  
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6. Figure 6: Force–distance retracting curves of the adhesive material deposited by the tube feet of Paracentrot...
  
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7. Figure 7: a) Histological staining of the adhesive material deposited by the tube feet of Paracentrotus livid...
  
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Beilstein J. Nanotechnol. 2018, 9, 2277–2286, doi:10.3762/bjnano.9.212

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Surface energy of nanoparticles – influence of particle size and structure

Dieter Vollath,
Franz Dieter Fischer and
David Holec

Review
Published 23 Aug 2018

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1. Figure 1: Melting temperature of gold nanoparticles according to Castro et al. [11] and Cluskey et al. [13]. One real...
  
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2. Figure 2: Visualization of the setting for the estimation the number of next neighbors (coordination number) ...
  
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3. Figure 3: Relative coordination number q of an atom at the surface of a spherical particle as function of the...
  
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4. Figure 4: Graph of Equation 6. Also in this case, a lower limit for the particle diameter exists (α = β = 1).
  
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5. Figure 5: Surface energy for gold nanoparticles as function of the particle diameter according to Gang et al. ...
  
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6. Figure 6: Landau’s order parameter M for tin particles of different particle diameters as function of the rad...
  
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7. Figure 7: Difference of the surface energy between the solid and the liquid state at the melting temperature ...
  
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8. Figure 8: Radial profiles of the density for a fcc metal cluster consisting of 3302 atoms versus the particle...
  
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9. Figure 9: Thickness of the liquid and the quasi-liquid transition layer close to the surface of a 18 nm gold ...
  
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10. Figure 10: Translational order parameter for gold particles of different particle diameter as function of the ...
  
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11. Figure 11: Melting temperature of lead according to Coombes [16]. This figure shows two ranges of melting temperat...
  
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12. Figure 12: Surface energy of gold as function of the particle size according to Ali et al. [51]. The graphs show t...
  
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13. Figure 13: Results of molecular dynamic calculations of the surface energy of gold [54]. (a) All the results, wher...
  
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14. Figure 14: High-resolution electron micrograph of a zirconia, ZrO₂, and an alumina, Al₂O₃ nanoparticles. (a) A...
  
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15. Figure 15: Surface energy of the three modifications of titania at a temperature of 300 K as function of the p...
  
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16. Figure 16: Surface energy of silver particles as function of the particle diameter [49]. This graph shows the orig...
  
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17. Figure 17: Surface energy of aluminum particles as function of the particle diameter [58]. This graph shows both t...
  
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18. Figure 18: Binding energy of the atoms in the outmost layer of an Au₅₅ cluster [14]. Additionally, for each coordi...
  
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Beilstein J. Nanotechnol. 2018, 9, 2265–2276, doi:10.3762/bjnano.9.211

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Intrinsic ultrasmall nanoscale silicon turns n-/p-type with SiO₂/Si₃N₄-coating

Dirk König,
Daniel Hiller,
Noël Wilck,
Birger Berghoff,
Merlin Müller,
Sangeeta Thakur,
Giovanni Di Santo,
Luca Petaccia,
Joachim Mayer,
Sean Smith and
Joachim Knoch

Full Research Paper
Published 23 Aug 2018

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1. Figure 1: Energy offsets with SiO₂- and Si₃N₄-embedding for one Si₁₀-NC (0.8 nm size) embedded in SiO₂ and th...
  
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2. Figure 2: Evolution of energy offsets for SiO₂- and Si₃N₄-embedded Si₁₀-NCs (0.8 nm size) as a function of em...
  
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3. Figure 3: Structures of samples investigated by synchrotron UPS: (a) Si-reference, (b) 1.7 nm Si-NWell in Si₃N...
  
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4. Figure 4: Cross-section HR-TEM images of samples QW-17-N (a), QW-17-O (b) and QW-26-N (c). Semi-transparent s...
  
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5. Figure 5: Experimental evidence of HOMO ΔE by synchrotron UPS: (a) scans of NWell samples and a hydrogen-term...
  
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6. Figure 6: Electronic properties obtained by h-DFT for Si₂₃₃(NH₂)₈₇(OH)₈₁ NWire of 1.4 nm diameter and 5.2 nm ...
  
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7. Figure 7: Concept of an undoped FET consisting of a Si-NWire with drain/gate (channel)/source regions covered...
  
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8. Figure 8: NEGF simulation results of undoped Si-NWire-FET illustrated in Figure 7: (a) gate-wrap-around Si-NWire FET ...
  
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