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Search for "diamond" in Full Text gives 232 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Spin-chemistry concepts for spintronics scientists

  • Konstantin L. Ivanov,
  • Alexander Wagenpfahl,
  • Carsten Deibel and
  • Jörg Matysik

Beilstein J. Nanotechnol. 2017, 8, 1427–1445, doi:10.3762/bjnano.8.143

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Published 11 Jul 2017

Low uptake of silica nanoparticles in Caco-2 intestinal epithelial barriers

  • Dong Ye,
  • Mattia Bramini,
  • Delyan R. Hristov,
  • Sha Wan,
  • Anna Salvati,
  • Christoffer Åberg and
  • Kenneth A. Dawson

Beilstein J. Nanotechnol. 2017, 8, 1396–1406, doi:10.3762/bjnano.8.141

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  • for 1 h before being transferred to pure Epon and embedded at 37 °C for 2 h. The final polymerization was carried out at 65 °C for 24 h. With a reported approach [16], ultrathin sections of 80 nm, obtained with a diamond knife using an ultramicrotome Leica U6, were mounted on copper grids, and stained
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Published 07 Jul 2017

Comprehensive Raman study of epitaxial silicene-related phases on Ag(111)

  • Dmytro Solonenko,
  • Ovidiu D. Gordan,
  • Guy Le Lay,
  • Dietrich R. T. Zahn and
  • Patrick Vogt

Beilstein J. Nanotechnol. 2017, 8, 1357–1365, doi:10.3762/bjnano.8.137

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  • disordered [16]. If the growth temperature further increases above 300 °C, the related Raman spectra become dominated by an intense mode at 520 cm−1 and a broad band at 900 cm−1, showing a strong similarity to bulk diamond-like silicon. The low-intensity Raman bands below the band at 520 cm−1 will be
  • band at 520 cm−1 with a FWHM of 8 cm−1. This mode is similar to the L(T)O phonon mode of diamond-like silicon, clearly indicating the formation of Si crystallites. Additionally, the second-order TO phonon mode around 900 cm−1 (Figure 2, top spectrum) supports the bulk-like nature of the structures
  • visualized in AFM at higher deposition temperature (300 °C). This indicates that the formation of diamond-type Si starts to take place below 300 °C. It is noteworthy that the shoulder at the lower-energy side of the L(T)O mode is assigned to the crystallites and not to amorphous Si because of its consistency
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Published 03 Jul 2017

Bio-inspired micro-to-nanoporous polymers with tunable stiffness

  • Julia Syurik,
  • Ruth Schwaiger,
  • Prerna Sudera,
  • Stephan Weyand,
  • Siegbert Johnsen,
  • Gabriele Wiegand and
  • Hendrik Hölscher

Beilstein J. Nanotechnol. 2017, 8, 906–914, doi:10.3762/bjnano.8.92

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  • . [26]. Briefly, a flat diamond punch of 20 μm diameter was brought into contact with the material and loaded to reach a penetration depth of 3 μm. After a stabilisation period, the punch then oscillated at different frequencies between 1 and 45 Hz while maintaining the depth of 3 μm. The frequency
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Published 21 Apr 2017

Investigation of growth dynamics of carbon nanotubes

  • Marianna V. Kharlamova

Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85

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  • the growth of nanotubes. The formation of nanotubes on nonmetallic catalysts has peculiarities as compared to the growth on metals [46][47][48][49]. Catalytic nanoparticles of diamond [47], zirconia [48] and silica [46][49] have negligibly small bulk solubility of carbon, and it is therefore unlikely
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Published 11 Apr 2017

Measuring adhesion on rough surfaces using atomic force microscopy with a liquid probe

  • Juan V. Escobar,
  • Cristina Garza and
  • Rolando Castillo

Beilstein J. Nanotechnol. 2017, 8, 813–825, doi:10.3762/bjnano.8.84

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  • nanometer-sized peaks commonly used for the determination of AFM tip sharpness and a multi-scaled rough diamond surface containing sub-micrometer protrusions. Measurements are carried out in a nitrogen atmosphere to avoid water capillary interactions. We obtain information about the average force of
  • . Also, the drop does not break during a pull-off process, and its solvophobic behavior with specific surfaces is known [26]. As rough surfaces, we use a patterned surface composed of a regular array of sharp (nanometer-sized) silicon peaks, and a Hg-phobic multi-scaled diamond surface with heterogeneous
  • hollow silica sphere of similar dimensions as the mercury drop. As a final pair, we measure the interaction between c) a mercury drop and a Hg-phobic multi-scaled rough diamond surface. Finally, in the last section we present the conclusions. Experimental The measuring principle we use is similar to that
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Published 10 Apr 2017

3D Nanoprinting via laser-assisted electron beam induced deposition: growth kinetics, enhanced purity, and electrical resistivity

  • Brett B. Lewis,
  • Robert Winkler,
  • Xiahan Sang,
  • Pushpa R. Pudasaini,
  • Michael G. Stanford,
  • Harald Plank,
  • Raymond R. Unocic,
  • Jason D. Fowlkes and
  • Philip D. Rack

Beilstein J. Nanotechnol. 2017, 8, 801–812, doi:10.3762/bjnano.8.83

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  • the deposited pillar. The carbon K-edge provides information on the electronic structure of carbon and analysis of characteristic features contained within the energy loss near edge structure (ELNES) indicates whether carbon is amorphous, graphitic or diamond. Figure 3e shows the corresponding
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Published 07 Apr 2017

Surface improvement of organic photoresists using a near-field-dependent etching method

  • Felix J. Brandenburg,
  • Tomohiro Okamoto,
  • Hiroshi Saito,
  • Benjamin Leuschel,
  • Olivier Soppera and
  • Takashi Yatsui

Beilstein J. Nanotechnol. 2017, 8, 784–788, doi:10.3762/bjnano.8.81

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  • effective in producing atomically flat surfaces in various materials, including GaN [9], glass [10] and even diamond [11] and has shown to be effective on both flat and patterned surfaces. According to theory, the etching effect originates from radical gas-phase components. More precisely, ambient O2
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Published 05 Apr 2017

Recombinant DNA technology and click chemistry: a powerful combination for generating a hybrid elastin-like-statherin hydrogel to control calcium phosphate mineralization

  • Mohamed Hamed Misbah,
  • Mercedes Santos,
  • Luis Quintanilla,
  • Christina Günter,
  • Matilde Alonso,
  • Andreas Taubert and
  • José Carlos Rodríguez-Cabello

Beilstein J. Nanotechnol. 2017, 8, 772–783, doi:10.3762/bjnano.8.80

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  • directly on the ATR crystal for measurement. IR spectra were recorded using a Bruker Tensor 27 USA spectrophotometer with a diamond crystal. For each spectrum, a 128-scan spectrum was collected from 4000 to 500 cm−1 with a 2 cm−1 resolution. Spectral analysis was performed using OPUS v4.2 (Mattson
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Published 04 Apr 2017

α-((4-Cyanobenzoyl)oxy)-ω-methyl poly(ethylene glycol): a new stabilizer for silver nanoparticles

  • Jana Lutze,
  • Miguel A. Bañares,
  • Marcos Pita,
  • Andrea Haase,
  • Andreas Luch and
  • Andreas Taubert

Beilstein J. Nanotechnol. 2017, 8, 627–635, doi:10.3762/bjnano.8.67

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  • Oxford Instruments EDX analyzer was used for the analysis. IR spectroscopy. IR spectra were measured with a Thermo Nicolet Nexus FTIR spectrometer with a Thermo Scientific Smart Orbit (Diamond). ATR correction was done with Omnic 8.1.11 from Thermo Nicolet Fischer Scientific. For IR spectroscopy, a few
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Published 15 Mar 2017

Anodization-based process for the fabrication of all niobium nitride Josephson junction structures

  • Massimiliano Lucci,
  • Ivano Ottaviani,
  • Matteo Cirillo,
  • Fabio De Matteis,
  • Roberto Francini,
  • Vittorio Merlo and
  • Ivan Davoli

Beilstein J. Nanotechnol. 2017, 8, 539–546, doi:10.3762/bjnano.8.58

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  • range of 300–1000 nm, connected to the vacuum chamber by means of an optical fibre pointing directly into the plasma. The measurements of hardness, reduced modulus and surface roughness have been performed by Nano Test Micro Materials Ltd., using a diamond Berkovich tip. Results and Discussion NbN films
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Published 02 Mar 2017

Methods for preparing polymer-decorated single exchange-biased magnetic nanoparticles for application in flexible polymer-based films

  • Laurence Ourry,
  • Delphine Toulemon,
  • Souad Ammar and
  • Fayna Mammeri

Beilstein J. Nanotechnol. 2017, 8, 408–417, doi:10.3762/bjnano.8.43

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  • . Toluene was then removed and the functionalized ENPs were recovered after several washings with THF. Hybrid characterization The different reaction steps were monitored by ATR-FTIR on a Thermo Nicolet 8700 spectrometer equipped with a diamond crystal (50 scans, 4 cm−1 resolution). Thermogravimetric
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Published 09 Feb 2017

Functionalized TiO2 nanoparticles by single-step hydrothermal synthesis: the role of the silane coupling agents

  • Antoine R. M. Dalod,
  • Lars Henriksen,
  • Tor Grande and
  • Mari-Ann Einarsrud

Beilstein J. Nanotechnol. 2017, 8, 304–312, doi:10.3762/bjnano.8.33

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  • prior to analysis. Particle sizes were estimated from the surface area assuming non-porous and spherical particles. Fourier-transform infrared (FTIR) spectra were acquired on a Bruker Vertex 80v FTIR equipped with Bruker Platinum ATR diamond system from 400 to 4000 cm−1, under medium vacuum (280 Pa). A
  • background was collected under medium vacuum, without sample. Between each analysis, the ATR diamond was cleaned with isopropanol, for which vacuum provides fast evaporation and no specific adsorption bands of isopropanol were observed. A total of 128 scans were acquired for each sample at a resolution of 1
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Published 31 Jan 2017

Grazing-incidence optical magnetic recording with super-resolution

  • Gunther Scheunert,
  • Sidney. R. Cohen,
  • René Kullock,
  • Ryan McCarron,
  • Katya Rechev,
  • Ifat Kaplan-Ashiri,
  • Ora Bitton,
  • Paul Dawson,
  • Bert Hecht and
  • Dan Oron

Beilstein J. Nanotechnol. 2017, 8, 28–37, doi:10.3762/bjnano.8.4

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  • as depicted in Figure 2a. It is important to notice the low roughness of the diamond-like carbon (DLC) surface, which is an important prerequisite for high-resolution MFM plane scans. For the electric field and thermal modelling the layer structure was simplified in a sensible manner as indicated in
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Published 04 Jan 2017

Annealing-induced recovery of indents in thin Au(Fe) bilayer films

  • Anna Kosinova,
  • Ruth Schwaiger,
  • Leonid Klinger and
  • Eugen Rabkin

Beilstein J. Nanotechnol. 2016, 7, 2088–2099, doi:10.3762/bjnano.7.199

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  • microscope. For load-controlled nanoindentation tests, a three-sided diamond pyramidal Berkovich tip of approximately 20 nm radius of curvature at the apex was used. The arrays of nanoimprints (array size 100 × 100 µm) were produced on the film surface at applied loads of 0.1 and 0.2 mN, and contained 100
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Published 28 Dec 2016

Fundamental properties of high-quality carbon nanofoam: from low to high density

  • Natalie Frese,
  • Shelby Taylor Mitchell,
  • Christof Neumann,
  • Amanda Bowers,
  • Armin Gölzhäuser and
  • Klaus Sattler

Beilstein J. Nanotechnol. 2016, 7, 2065–2073, doi:10.3762/bjnano.7.197

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  • . A large variety of carbon materials have been investigated by XPS. In particular, XPS reveals important bonding information about carbons with nanoscale units such as carbon nanotubes [31], diamond-like carbon films [32], nanostructured carbon films [33], tetrahedral amorphous carbon films [34
  • carbon (1.8–2.1 g·cm−3), carbon nanotubes (1.6 g cm−3) or diamond (3.515 g·cm−3) [40]. Various types of low-weight carbons have been reported in the literature, with densities typically between 100 and 300 mg·cm−3. Among these are carbon aerogels [41][42][43], amorphous carbon nanoparticles [44][45
  • be due to unidentified vibrations of various types of nanocarbons and possibly of hydrocarbons adsorbed in the foams. We note that at 1180 cm−1, a peak was determined for nanocrystalline diamond films [53]. Also, two Raman features at 1180 and 1490 cm−1 in addition to the G and D peaks were observed
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Published 27 Dec 2016

A new approach to grain boundary engineering for nanocrystalline materials

  • Shigeaki Kobayashi,
  • Sadahiro Tsurekawa and
  • Tadao Watanabe

Beilstein J. Nanotechnol. 2016, 7, 1829–1849, doi:10.3762/bjnano.7.176

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  • that grain boundaries are migrated and aligned at about 45° against the stress axis. This results in the evolution of a “diamond-shaped” grain structure, which was observed in conventional polycrystalline materials during cyclic deformation at high temperatures [114][115][116][117]. The grain growth by
  • fatigue. The cyclic stress-induced grain growth, accompanying the transformation of low-angle boundaries into the boundaries with higher misorientation angle, is associated with the evolution of a “diamond-shaped” grain structure along initially formed shear bands. This resulted in intergranular fatigue
  • stress-induced grain growth and the grain boundary configuration forming the “diamond-shaped” grain structure. The details of the proposed mechanism of grain growth-assisted fatigue intergranular fracture can be obtained from the original article [113]. The formation of a large width of striations and
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Published 25 Nov 2016

Effective intercalation of zein into Na-montmorillonite: role of the protein components and use of the developed biointerfaces

  • Ana C. S. Alcântara,
  • Margarita Darder,
  • Pilar Aranda and
  • Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2016, 7, 1772–1782, doi:10.3762/bjnano.7.170

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  • 200 kV), the biohybrids were previously embedded in epoxy resin and then cut in very thin sections using an ultramicrotome (LEICA EM UC6) equipped with a diamond blade. SDS-PAGE SDS-PAGE was performed according to Cabra and co-workers [29], where aliquots of 7.5 µL containing approximately 30 µg of
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Published 18 Nov 2016

Active and fast charge-state switching of single NV centres in diamond by in-plane Al-Schottky junctions

  • Christoph Schreyvogel,
  • Vladimir Polyakov,
  • Sina Burk,
  • Helmut Fedder,
  • Andrej Denisenko,
  • Felipe Fávaro de Oliveira,
  • Ralf Wunderlich,
  • Jan Meijer,
  • Verena Zuerbig,
  • Jörg Wrachtrup and
  • Christoph E. Nebel

Beilstein J. Nanotechnol. 2016, 7, 1727–1735, doi:10.3762/bjnano.7.165

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  • state and hence of the optical and electronic properties of single and near-surface nitrogen-vacancy centres (NV centres) in diamond. This active manipulation is achieved by using a two-dimensional Schottky-diode structure from diamond, i.e., by using aluminium as Schottky contact on a hydrogen
  • terminated diamond surface. By changing the applied potential on the Schottky contact, we are able to actively switch single NV centres between all three charge states NV+, NV0 and NV− on a timescale of 10 to 100 ns, corresponding to a switching frequency of 10–100 MHz. This switching frequency is much
  • for quantum communication and cryptography. Keywords: active charge state control; diamond; fast charge state switching; NV centre; two-dimensional Schottky diode; Introduction The nitrogen-vacancy centre (NV centre) in diamond is known to exist in at least three different charge states (NV−, NV0
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Published 16 Nov 2016

On the pathway of cellular uptake: new insight into the interaction between the cell membrane and very small nanoparticles

  • Claudia Messerschmidt,
  • Daniel Hofmann,
  • Anja Kroeger,
  • Katharina Landfester,
  • Volker Mailänder and
  • Ingo Lieberwirth

Beilstein J. Nanotechnol. 2016, 7, 1296–1311, doi:10.3762/bjnano.7.121

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  • % osmium tetroxide, 0.1% uranylacetate and 5% water) was pre-cooled to −90 °C before samples were added. Finally, the samples were embedded in EPON 812 and sectioned at room temperature using a diamond knife. For elemental analysis, some of these specimens were additionally coated with a thin carbon layer
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Published 16 Sep 2016

The self-similarity theory of high pressure torsion

  • Yan Beygelzimer,
  • Roman Kulagin,
  • Laszlo S. Toth and
  • Yulia Ivanisenko

Beilstein J. Nanotechnol. 2016, 7, 1267–1277, doi:10.3762/bjnano.7.117

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  • numerical simulations show that the true plastic flow during HPT can differ significantly from the theoretical predictions given by the simple scheme above. In particular, in [4][5] a problem of coupled phase transformations and plastic flows under torsion at high pressure in a rotational diamond anvil cell
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Published 07 Sep 2016

Tunable longitudinal modes in extended silver nanoparticle assemblies

  • Serene S. Bayram,
  • Klas Lindfors and
  • Amy Szuchmacher Blum

Beilstein J. Nanotechnol. 2016, 7, 1219–1228, doi:10.3762/bjnano.7.113

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  • ), (95%, Aldrich), DL-dithiothreitol (Biotechnology grade, Fischer), cysteamine (95%, Aldrich), L-cysteine (97%, Aldrich), and D2O (98%, Aldrich). Deionized water (ρ >18 MΩ·cm) was used and obtained using a Barnstead Diamond TII (Thermo Fisher) purification system and the pH value was adjusted using 100
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Published 26 Aug 2016

Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers

  • Rasheed Atif and
  • Fawad Inam

Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109

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  • polymer matrix composites (PMC) and has shown to yield significant improvements in different (mechanical, thermal, and electrical) properties of the produced nanocomposites [6][7][8][9]. Graphene exhibits a honeycomb lattice, the sp2 bonding of which is much stronger than the sp3-bonding found in diamond
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Published 12 Aug 2016

The hydraulic mechanism in the hind wing veins of Cybister japonicus Sharp (order: Coleoptera)

  • Jiyu Sun,
  • Wei Wu,
  • Mingze Ling,
  • Bharat Bhushan and
  • Jin Tong

Beilstein J. Nanotechnol. 2016, 7, 904–913, doi:10.3762/bjnano.7.82

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  • basic mechanisms produces the various folding patterns [11]. Moreover, the hind wing diamond area type can play a central role as a spring [11][13]. The ribs are arranged in a certain way. Another possibility is that the folding and unfolding actions are controlled by two different mechanisms [14
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Published 23 Jun 2016

Direct formation of gold nanorods on surfaces using polymer-immobilised gold seeds

  • Majid K. Abyaneh,
  • Pietro Parisse and
  • Loredana Casalis

Beilstein J. Nanotechnol. 2016, 7, 809–816, doi:10.3762/bjnano.7.72

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  • Majid K. Abyaneh Pietro Parisse Loredana Casalis Diamond Light Source Ltd., Harwell Science and Innovation Campus, OX11 0DE Didcot, Oxfordshire, UK Elettra – Sincrotrone Trieste S.C.p.A., s.s. 14 km 163.5 in Area Science Park, Basovizza, 34149, Trieste, Italy 10.3762/bjnano.7.72 Abstract Herein
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Published 06 Jun 2016
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