| | 1. | Wet-chemical catalyst deposition for scalable synthesis of vertical aligned carbon nanotubes on metal substrates Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 16 June 2011
S. Dörfler, A. Meier, S. Thieme, P. Németh, H. Althues, S. Kaskel
Graphical abstract
Highlights► Wet-chemical deposition of metal catalyst alloys for CNT growth was developed. ► Homogeneous vertical aligned CNT films of 170 μm height were achieved. ► The catalyst composition influences both growth rate and structure of VA-CNT films. ► Alloying of Co in Fe catalysts leads to increased growth rates. ► Small doping of Mo to the Fe catalyst leads to increased density of the CNT films.
| | | | 3. | Local thermal effect at luminescent spot on upconversion luminescence in Y2O3:Er3+,Yb3+ nanoparticles Original Research Article
Materials Science and Engineering: B, In Press, Uncorrected Proof, Available online 16 June 2011
Qiang Lü, YingJun Wu, AiHua Li, Yang Wang, Yang Gao, HongYan Peng
Highlights► The authors investigate the effect of local temperature at luminescent spot on upconversion luminescence from Y2O3:Er3+,Yb3+ nanoparticles using theoretical analysis and experimental measurements. A competition between local temperature and laser power density decides the changing trend of upconversion luminescence. This enables the achievement of the most intensive upconversion luminescence in Y2O3:Er3+,Yb3+ nanoparticles at a threshold of power density.
| | | | 4. | Band gap of carbon nanotubes under combined uniaxial-torsional strain Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 16 June 2011
Yong Zhang, Mei Han
Highlights► The changes in band gaps of CNTs depend strongly on the strain type. ► There is cooperative effect between uniaxial and torsional strains on band gap of armchair CNTs. ► There is no cooperative effect between uniaxial and torsional strains on band gap of zigzag CNTs.
| | | | 5. | Nanostructured hard coatings deposited by cathodic arc deposition: From concepts to applications Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 16 June 2011
F. Sanchette, C. Ducros, T. Schmitt, P. Steyer, A. Billard
Highlights► This paper recalls principles and characteristics of Cathodic Arc Deposition ► Two examples are done: nanocomposite and nanolayered hard coatings ► Elaboration and characterization of nanocomposite and nanolayered films are discussed ► Oxydation behaviours and hardness are the investigated parameters ► This short review recalls that CAD remains a powerful and industrial technology
| | | | 6. | Quality improvement of single-walled carbon nanotubes by doping B in Fe/MgO catalyst Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 15 June 2011
Yunfang Liu, Yan Pan, Weidong Chi, Zengmin Shen
Highlights► The quality of single-walled carbon nanotubes can be effectively improved by doping appropriate amount of B in the Fe/MgO catalyst. ► The research results shed light on the importance of radical species on the formation of carbon nanotube. ► This method contributes to the understanding of nanotube growth mechanism.
| | | | 7. | Vermiculite decorated with copper nanoparticles: novel antibacterial hybrid material Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 15 June 2011
Jaroslaw Drelich, Bowen Li, Patrick Bowen, Jiann-Yang Hwang, Owen Mills, Daniel Hoffman
Highlights► ► We embedded vermiculite with nanoparticles of elemental copper. ► Copper nanoparticles reside on surfaces of vermiculite platelets with strong adhesion. ► The hybrid material has strong antibacterial activity against Staphylococcus aureus.
| | | | 9. | Nanoscale structure and intercrystalline interactions in fat crystal networks☆ Review Article
Current Opinion in Colloid & Interface Science, In Press, Accepted Manuscript, Available online 15 June 2011
Nuria, Acevedo | Fernanda, Peyronel | Alejandro G., Marangoni
Graphical abstract
Highlights► Discovery and characterization of the nanoscale of fat crystal networks ► Proof that the engineering of this length scale is possible using external fields ► Complete description of structural hierarchy present in fat crystal networks provided ► Discussion of the nature and determination of van der Waals' forces between fat crystals ► Review of current theories, macroscopic and microscopic on van der Waals' forces ► Relationship between nanoscale structure, strength of intercrystalline interactions and rheological material properties in fats
| | | | 11. | Stability analysis of electrostatic nanotweezers Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 15 June 2011
Asghar Ramezani
Graphical AbstractThe pull-in instability of electrostatic nanotweezers considering the dispersion forces is studied analytically and numerically using distributed and lumped parameter models and the results are compared. Highlights► The pull-in instability of electrostatically actuated nanotweezers considering the dispersion forces is studied using distributed and lumped parameter models. ► Closed-form solutions are obtained for electrostatic nanotweezers. ► Numerical simulations of electrostatic microtweezers, freestanding nanotweezers, and electrostatic nanotweezers are performed.► Analytical and numerical solutions are compared with those of the corresponding switch. In addition, the results of the distributed and lumped parameter models are compared.► The detachment length and minimum initial gap of nanotweezers are determined.
| | | | 12. | Observation of nanoscale hot-spot generation on a 2, 4, 6-trinitrophenol (TNP) single crystal Original Research Article
Surface Science, In Press, Accepted Manuscript, Available online 15 June 2011
Alexander Kovalev, Heinz Sturm
Research highlights► The hotspot generation on a surface of TNP crystal has been directly initiated by means of an AFM tip. ► The generation of hotspot after the initiation by mechanical stimulus is accompanied by producing agglomerated spherical-like nanoparticles due to a low-temperature decomposition of TNP molecules. The agglomerated particles are produced outside of the stimulated region. ► The observed decomposition process at the nanoscale doesn't lead to a self-sustaining shock as detonation or explosion of TNP crystal.
| | | | 14. | Synthesis and characterization of Fe3O4@C@Ag nanocomposites and their antibacterial performance Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Haiqing Xia, Bin Cui, Junhong Zhou, Lulu Zhang, Ji Zhang, Xiaohui Guo, Huilin Guo
Highlights► To enhance the efficiency of antibacterial of Ag nanoparticles and recycle the residual Ag nanoparticles in the system, we synthesized Fe3O4@C@Ag and Fe3O4@Ag nanocomposites. ► For the role of intermediate carbon layer, antibacterial properties of Fe3O4@C@Ag is better than Fe3O4@Ag. ► The Fe3O4@C@Ag nanocomposites will have potential uses in many fields as catalysts, absorbents, and bifunctional magnetic–optical materials.
| | | | 15. | Effect of structure on the photocatalytic activity of Pt-doped TiO2 nanotubes Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Yaling Su, Yirong Deng
Highlights► TiO2 nanotubes anodized in 1/12 M C2H2O4•2H2O containing 0.5 wt.% NH4F (electrolyte A) displayed an obvious tubular structure with the average length of 700 nm ► TiO2 nanotubes anodized in anhydrous dimethyl sulfoxide containing 1% HF (electrolyte B) showed the inhomogeneous cracked surface with the average length of 3 μm. ► Pt-doped TiO2 anodized in electrolyte B (400 °C) showed the highest photocatalytic activity.
| | | | 16. | Synthesis of CdS nanocrystals by a microwave activated method and investigation of the photoluminescence and electroluminescence properties Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 14 June 2011
M. Molaei, E. Saievar Iranizad, M. Marandi, N. Taghavinia, R. Amrollahi
Highlights► The method is microwave activated method.● The method results in luminescent CdS NCs with sizes around 3 nm and surface trap state white luminescence. ► The method is very fast and synthesis process is done less than 5 min. ► PL QY of NCs is 10%. This amount is near to the obtained amount for chemically synthesized NCs. ► Synthesized NCs were used as emissive layer in a light emitting device with ITO/PEDOT-PSS/PVK/CdS/AL structure ► Fabricated device showed a white emission with (0.34,0.43) CIE coordinates.
| | | | 18. | Conducting polymer film - based immunosensors using carbon nanotube/antibodies doped polypyrrole Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Phuong Dinh Tam, Nguyen Van Hieu
Highlights► ► >Goat-IgGs immobilized on sensor surface using electrochemical techniques.> the effect parameters of electropolymerization process on immunosensor response are also studied .> It found that the immunosensor well active in 1.5 mg ml−1 CNT concentration, 2.5 mM pyrrole, 10 μg ml−1 goat IgGs> detection limit as low as 0.05 μg/ml and a response time of 1 min ►
| | | | 19. | Bioreducible insulin-loaded nanoparticles and their interaction with model lipid membranes Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Rickard Frost, Gregory Coué, Johan F.J. Engbersen, Michael Zäch, Bengt Kasemo, Sofia Svedhem
Graphical abstractSynthesis and characterization of poly(amido amine) based polyelectrolyte complexes, proving their responsiveness towards glutathione and a decrease in pH while adsorbed to a model lipid membrane. Highlights► Novel nanodrugs based on protein-loaded polyelectrolyte complexes were produced. ► Nanodrug – model membrane interactions were studied with surface sensitive techniques. ► The nanodrugs collapsed into thin layers on top of oppositely charged lipid membranes. ► The bioreducible nanodrugs disintegrated when exposed to glutathione. ► The nanodrugs disintegrated when the ambient pH was reduced from 7.3 to 5.1.
| | | | 21. | Nanostructures and Surface Hydrophobicity of Epoxy Thermosets Containing Hepta(3,3,3-trifluropropyl) Polyhedral Oligomeric Silsesquioxane-capped Poly(hydroxyether of bisphenol A) Telechelics Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Ke Zeng, Lei Wang, Sixun Zheng
Graphical abstract
Highlights► Hepta(3,3,3-trifluoropropyl) polyhedral oligomeric silsesquioxane (POSS)-capped poly(hydroxyether of bisphenol A) telechelics was synthesized via Mannich condensation. ► The organic-inorganic amphiphile was incorporated into epoxy and the nanostructured hybrid thermosets were obtained. The formation of nanostructures in the thermosets followed the mechanism of self-assembly. ► The enrichment of the POSS portion at the surface of the nanostructured thermosets occurred and thus the surface hydrophobicity (or dewettability) of materials was significantly enhanced, which was evidenced by the measurements of surface contact angle and X-ray optoelectronic spectroscopy (XPS).
| | | | 22. | Gallium ion-assisted room temperature synthesis of small-diameter ZnO nanorods Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Seungho Cho, Semi Kim, Kun-Hong Lee
Graphical abstractWe report a method for synthesizing single crystalline small-diameter (∼9 nm) pure ZnO nanorods at room temperature (20°C) and normal atmospheric pressure (1 atm) by the addition of gallium salts to the reaction solution. Highlights► Single crystalline small-diameter ZnO nanorods were synthesized by gallium-assisted reaction. ► No gallium atoms were incorporated into the synthesized nanorods. ► Gallium ions were involved in suppressing the dissolution of ZnO. ► The UV-Vis absorption spectra of the ZnOs were blue-shifted relative to that of 230 nm diameter ZnO.
| | | | 23. | Ionic Liquid-Based Stable Nanofluids Containing Gold Nanoparticles Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Baogang Wang, Xiaobo Wang, Wenjing Lou, Jingcheng Hao
Graphical abstractProposed heat transport mechanisms for the ionic liquid-based nanofluids containing gold nanoparticles. Highlights► The stable ionic liquid-based nanofluids containing gold nanoparticles (Au NPs) were prepared. ► Brownian motion should be one key effect factor in the heat transport processes of ionic liquid-based gold nanofluids. ► The results may shed lights on comprehensive understanding of heat transport mechanisms in nanofluids.
| | | | 24. | Interfacial Chemical Bonding Effect on the Photocatalytic Activity of TiO2-SiO2 Nanocoupling Systems Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 June 2011
Musashi Fujishima, Hiroaki Takatori, Hiroaki Tada
Graphical abstractThe TiO2 nanoparticles combined on the surfaces of SiO2 microspheres exhibited the enhanced UV-light photocatalytic activity due to the the lowering of the valence band edge with the interfacial Si-O-Ti bond formation. Highlights► TiO2 nanoparticles were deposited onto the surfaces of mesoporous SiO2. ► The TiO2 particles were anatase crystals firmly combined on the SiO2 surfaces. ► The bandgap of TiO2 was widened by the coupling with the SiO2. ► The coupling with the SiO2 enhanced the UV-light-activity of TiO2. ► DFT calculations suggested the lowering of the valence band edge of TiO2.
| | | | 25. | Transformation of silicon nanowires to nanocoils by annealing in reducing atmosphere Original Research Article
Journal of Crystal Growth, In Press, Accepted Manuscript, Available online 14 June 2011
Bhabani S. Swain, Sung S. Lee, Sang H. Lee, Bibhu P. Swain, Nong M. Hwang
Highlights► Transformation of silicon nanowires to silicon nanocoils. ► Migration of SiOx/Si interface by a diffusion-controlled process. ► Shape transformation caused by alternating tensile and compressive stresses in nanoscale.
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