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Search for "surface chemistry" in Full Text gives 200 result(s) in Beilstein Journal of Nanotechnology.

Electrical contacts to individual SWCNTs: A review

  • Wei Liu,
  • Christofer Hierold and
  • Miroslav Haluska

Beilstein J. Nanotechnol. 2014, 5, 2202–2215, doi:10.3762/bjnano.5.229

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  • ion exchange surface chemistry approach. Tens of thousands of CNFETs were fabricated on the chip level with 78% yield. Chikkadi et al. [89] introduced a photolithography-based scalable fabrication process which provides a good platform for investigating the uniformity of CNFET performance on a large
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Published 21 Nov 2014

Advances in NO2 sensing with individual single-walled carbon nanotube transistors

  • Kiran Chikkadi,
  • Matthias Muoth,
  • Cosmin Roman,
  • Miroslav Haluska and
  • Christofer Hierold

Beilstein J. Nanotechnol. 2014, 5, 2179–2191, doi:10.3762/bjnano.5.227

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  • ] discuss the effect of water adsorption on substrate-bound carbon nanotube devices, lying on SiO2 substrates (Figure 5a and Figure 5b). Due to the hydrophilic surface chemistry of SiO2, a thin water layer is present close to the nanotube. These water molecules then act as charge traps that screen the gate
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Published 20 Nov 2014

Cathode lens spectromicroscopy: methodology and applications

  • T. O. Menteş,
  • G. Zamborlini,
  • A. Sala and
  • A. Locatelli

Beilstein J. Nanotechnol. 2014, 5, 1873–1886, doi:10.3762/bjnano.5.198

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  • available in most laboratories presents a limitation, as the information on surface chemistry is available in core-level electronic transitions, which are only accessible by using higher photon energies from few tens of electronvolts to above 1 keV. By providing tunable high-brightness X-ray beams
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Published 27 Oct 2014

Carbon-based smart nanomaterials in biomedicine and neuroengineering

  • Antonina M. Monaco and
  • Michele Giugliano

Beilstein J. Nanotechnol. 2014, 5, 1849–1863, doi:10.3762/bjnano.5.196

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  • include drug delivery [65][66], implants coating [67] and bioimaging [68]. Similarly to the use of CNTs, the first consideration in biological applications is the biocompatibility of NDs. Diamond, in its bulk form, is chemically inert. However, because surface chemistry is predominant at the nanoscale
  • were incubated with oxidised NDs, suggesting it was a specific consequence of the surface chemistry of NDs. Nonetheless, Xing and co-workers noted that NDs and oxidised NDs induce overall less DNA damage than that caused by MWCNTs. The investigation of the cellular uptake mechanisms of NDs is also a
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Published 23 Oct 2014

Silicon and germanium nanocrystals: properties and characterization

  • Ivana Capan,
  • Alexandra Carvalho and
  • José Coutinho

Beilstein J. Nanotechnol. 2014, 5, 1787–1794, doi:10.3762/bjnano.5.189

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  • ratio of the structures becomes large [14]. Many important questions related to impurities and surface chemistry have to be answered by using quantum-chemical models. With the development of efficient linear-scaling density functional methods along with the steady drop of CPU-time costs, we are now able
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Published 16 Oct 2014

Nanocrystalline ceria coatings on solid oxide fuel cell anodes: the role of organic surfactant pretreatments on coating microstructures and sulfur tolerance

  • Chieh-Chun Wu,
  • Ling Tang and
  • Mark R. De Guire

Beilstein J. Nanotechnol. 2014, 5, 1712–1724, doi:10.3762/bjnano.5.181

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  • sulfur tolerance to the anode. Aspects of the sulfonate treatment, particularly the oxone oxidation step, may have adversely affected the anode surface chemistry. (As explained in the Experimental section, we observed chemical damage to the cathode if the oxone solution contacted it, and subsequently
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Published 06 Oct 2014

Growth and structural discrimination of cortical neurons on randomly oriented and vertically aligned dense carbon nanotube networks

  • Christoph Nick,
  • Sandeep Yadav,
  • Ravi Joshi,
  • Christiane Thielemann and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2014, 5, 1575–1579, doi:10.3762/bjnano.5.169

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  • reported ability to tailor the hydrophilicity and hydrophobicity of such 3D aligned CNT structures over a wide range from superhydrophilic to superhydrophobic [29] the directional cell growth on such structures should be possible and would thus allow understanding these observed preferences from a surface
  • chemistry viewpoint in future work. In conclusion, pristine randomly and vertically aligned CNTs architectures were studied with respect their use as substrates for neuron cell growth. Both CNT architectures are unique hierarchical structures to direct and control neural cell growth. To the best of our
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Published 17 Sep 2014

Current state of laser synthesis of metal and alloy nanoparticles as ligand-free reference materials for nano-toxicological assays

  • Christoph Rehbock,
  • Jurij Jakobi,
  • Lisa Gamrad,
  • Selina van der Meer,
  • Daniela Tiedemann,
  • Ulrike Taylor,
  • Wilfried Kues,
  • Detlef Rath and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2014, 5, 1523–1541, doi:10.3762/bjnano.5.165

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  • addition to ion release, the surface chemistry of the nanoparticle itself may also be directly associated with nanotoxicological effects, e.g., the formation of reactive oxygen species [33]. Here, surface atoms may trigger chemical reactions with biomolecules which are possibly harmful to the organism
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Published 12 Sep 2014

Hydrophobic interaction governs unspecific adhesion of staphylococci: a single cell force spectroscopy study

  • Nicolas Thewes,
  • Peter Loskill,
  • Philipp Jung,
  • Henrik Peisker,
  • Markus Bischoff,
  • Mathias Herrmann and
  • Karin Jacobs

Beilstein J. Nanotechnol. 2014, 5, 1501–1512, doi:10.3762/bjnano.5.163

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  • bacterium, the surrounding medium, the surface chemistry, and the material composition reflecting the influence of the main interacting forces [12][13]: van der Waals forces, hydrophobic interaction and electrostatic forces. In addition, specific interactions amplify bacterial adhesion whenever
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Published 10 Sep 2014

In vitro interaction of colloidal nanoparticles with mammalian cells: What have we learned thus far?

  • Moritz Nazarenus,
  • Qian Zhang,
  • Mahmoud G. Soliman,
  • Pablo del Pino,
  • Beatriz Pelaz,
  • Susana Carregal-Romero,
  • Joanna Rejman,
  • Barbara Rothen-Rutishauser,
  • Martin J. D. Clift,
  • Reinhard Zellner,
  • G. Ulrich Nienhaus,
  • James B. Delehanty,
  • Igor L. Medintz and
  • Wolfgang J. Parak

Beilstein J. Nanotechnol. 2014, 5, 1477–1490, doi:10.3762/bjnano.5.161

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  • original properties of the underlying NPs determine interactions with the cells [97]. In general, adsorbed proteins "smear out" differences in the surface chemistry between different NPs. Thus, typically two different types of NPs show more pronounced differences in their interaction with cells in case
  • . Scheme depicting the different mechanisms of cellular endocytosis. Reproduced with permission from [41]. Copyright (2011) Elsevier. Fluorescence microscopy image showing the granular structure of internalized NPs inside A549 lung cancer cells (two types of iron oxide NPs with different surface chemistry
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Published 09 Sep 2014

The protein corona protects against size- and dose-dependent toxicity of amorphous silica nanoparticles

  • Dominic Docter,
  • Christoph Bantz,
  • Dana Westmeier,
  • Hajo J. Galla,
  • Qiangbin Wang,
  • James C. Kirkpatrick,
  • Peter Nielsen,
  • Michael Maskos and
  • Roland H. Stauber

Beilstein J. Nanotechnol. 2014, 5, 1380–1392, doi:10.3762/bjnano.5.151

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  • unique properties such as the variety of surface modifications and their convenient synthesis [9][10][15]. Though, the biological influence of such type of NP and its correlation with the physico-chemical properties of the nanomaterial, such as size, density, and surface chemistry are still not
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Published 27 Aug 2014

Mimicking exposures to acute and lifetime concentrations of inhaled silver nanoparticles by two different in vitro approaches

  • Fabian Herzog,
  • Kateryna Loza,
  • Sandor Balog,
  • Martin J. D. Clift,
  • Matthias Epple,
  • Peter Gehr,
  • Alke Petri-Fink and
  • Barbara Rothen-Rutishauser

Beilstein J. Nanotechnol. 2014, 5, 1357–1370, doi:10.3762/bjnano.5.149

Graphical Abstract
  • transport, fate and possible toxicity of Ag [28]. Recent studies highlight the contradicting elements that may contribute to the biological impact of Ag NPs such as shape and size [29][30], surface chemistry [31][32] or a combined mechanism of particle and ions [33]. As the literature is contradicting and
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Published 26 Aug 2014

Surface topography and contact mechanics of dry and wet human skin

  • Alexander E. Kovalev,
  • Kirstin Dening,
  • Bo N. J. Persson and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2014, 5, 1341–1348, doi:10.3762/bjnano.5.147

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  • skin and (121.4 ± 1.6)° (n = 9) on wet skin. The larger contact angle on wet skin could reflect either a change in the skin surface chemistry, or more likely may be due to the increase in the surface roughness of wet skin. The receding contact angle was not measured but it would be smaller than the
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Published 22 Aug 2014

Organic and inorganic–organic thin film structures by molecular layer deposition: A review

  • Pia Sundberg and
  • Maarit Karppinen

Beilstein J. Nanotechnol. 2014, 5, 1104–1136, doi:10.3762/bjnano.5.123

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  • featuring purely organic thin films is still quite limited. Nevertheless some reviews concerning MLD-based thin films have been published in the past: George et al. [24] discuss the surface chemistry of MLD grown materials, addressing the problems which arise when using organic precursors in the growth
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Published 22 Jul 2014

Nanodiamond-DGEA peptide conjugates for enhanced delivery of doxorubicin to prostate cancer

  • Amanee D Salaam,
  • Patrick Hwang,
  • Roberus McIntosh,
  • Hadiyah N Green,
  • Ho-Wook Jun and
  • Derrick Dean

Beilstein J. Nanotechnol. 2014, 5, 937–945, doi:10.3762/bjnano.5.107

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  • , delivery due to size, and bioavailability. In contrast to the aforementioned nanoparticle systems, nanodiamond particles (ND) possess advantageous properties such as rich surface chemistry for conjugating targeting molecules, high surface area for loading drugs, and the ability to act as transmembrane
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Published 01 Jul 2014

Classical molecular dynamics investigations of biphenyl-based carbon nanomembranes

  • Andreas Mrugalla and
  • Jürgen Schnack

Beilstein J. Nanotechnol. 2014, 5, 865–871, doi:10.3762/bjnano.5.98

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  • ]. The product is a membrane, whose thickness, homogeneity and surface chemistry are related to the molecular precursor. So far several classes of precursors have been exploited [3]. One of the major unsolved questions is the internal structure of these membranes, since the structure cannot be determined
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Published 17 Jun 2014

Measuring air layer volumes retained by submerged floating-ferns Salvinia and biomimetic superhydrophobic surfaces

  • Matthias J. Mayser,
  • Holger F. Bohn,
  • Meike Reker and
  • Wilhelm Barthlott

Beilstein J. Nanotechnol. 2014, 5, 812–821, doi:10.3762/bjnano.5.93

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  • superhydrophobicity can only be achieved by a combination of a hydrophobic surface chemistry and surface structures on the micro and nano scale [11]. On these structured surfaces superhydrophobicity can occur either in the fully wetted state as described by Wenzel [12] or in the form of water sitting only on the tips
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Published 10 Jun 2014

Adsorption and oxidation of formaldehyde on a polycrystalline Pt film electrode: An in situ IR spectroscopy search for adsorbed reaction intermediates

  • Zenonas Jusys and
  • R. Jürgen Behm

Beilstein J. Nanotechnol. 2014, 5, 747–759, doi:10.3762/bjnano.5.87

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  • Zenonas Jusys R. Jurgen Behm Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany 10.3762/bjnano.5.87 Abstract As part of a mechanistic study of the electrooxidation of C1 molecules we have systematically investigated the dissociative
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Published 30 May 2014

Atomic layer deposition, a unique method for the preparation of energy conversion devices

  • Julien Bachmann

Beilstein J. Nanotechnol. 2014, 5, 245–248, doi:10.3762/bjnano.5.26

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  • achieves a thin film growth by using well-defined surface chemistry. Two (or more) complementary, quantitative surface reactions performed subsequently and repeated in an alternating manner result in the deposition of a solid in a layer-by-layer fashion [8][9][10]. The surface chemistry is ‘self-limiting
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Published 05 Mar 2014

3D-nanoarchitectured Pd/Ni catalysts prepared by atomic layer deposition for the electrooxidation of formic acid

  • Loïc Assaud,
  • Evans Monyoncho,
  • Kristina Pitzschel,
  • Anis Allagui,
  • Matthieu Petit,
  • Margrit Hanbücken,
  • Elena A. Baranova and
  • Lionel Santinacci

Beilstein J. Nanotechnol. 2014, 5, 162–172, doi:10.3762/bjnano.5.16

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  • ). The surface chemistry of the sample after the reductive annealing of the Ni deposit has been analyzed by XPS. As expected, the spectrum shown in Figure 6 exhibits peaks corresponding to Ni, C and Si but also to O. Although the Ni 2p, Ni 3p and Auger peaks indicate the presence of metallic Ni, the O 1s
  • angle of 120°. The measurements were obtained in reflection mode with an incident angle of 10° and Cu Kα1 (1.54056 Å) radiation. X-ray photoelectron spectroscopy by using a Mg electrode Kα (1253.6 eV) source (HA150 from VSW) was used for surface chemistry composition analysis. The Electrooxidation of
  • shows a homogeneous deposition of granularly structured Pd onto the Ni substrate. X-ray diffraction analysis performed on Ni and NiO substrates revealed an amorphous structure, while the Pd coating crystallized into a fcc lattice with a preferential orientation along the [220]-direction. Surface
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Published 12 Feb 2014

Exploring the retention properties of CaF2 nanoparticles as possible additives for dental care application with tapping-mode atomic force microscope in liquid

  • Matthias Wasem,
  • Joachim Köser,
  • Sylvia Hess,
  • Enrico Gnecco and
  • Ernst Meyer

Beilstein J. Nanotechnol. 2014, 5, 36–43, doi:10.3762/bjnano.5.4

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  • higher chemical affinity of the calcium fluoride nanoparticles to the tooth enamel substrate. Earlier studies that examined the enamel surface chemistry at certain pH values that were varied between 2 and 10, have shown that the enamel surface is covered with distinct ionic species depending on the pH
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Published 13 Jan 2014

Adsorption of the ionic liquid [BMP][TFSA] on Au(111) and Ag(111): substrate effects on the structure formation investigated by STM

  • Benedikt Uhl,
  • Florian Buchner,
  • Dorothea Alwast,
  • Nadja Wagner and
  • R. Jürgen Behm

Beilstein J. Nanotechnol. 2013, 4, 903–918, doi:10.3762/bjnano.4.102

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  • Benedikt Uhl Florian Buchner Dorothea Alwast Nadja Wagner R. Jurgen Behm Institute of Surface Chemistry and Catalysis, University Ulm, Albert-Einstein-Allee 47, D-89081 Ulm, Germany Helmholtz Institute Ulm Electrochemical Energy Storage (HIU), Albert-Einstein-Allee 11, D-89081 Ulm, Germany
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Published 16 Dec 2013

Synthesis of indium oxi-sulfide films by atomic layer deposition: The essential role of plasma enhancement

  • Cathy Bugot,
  • Nathanaëlle Schneider,
  • Daniel Lincot and
  • Frédérique Donsanti

Beilstein J. Nanotechnol. 2013, 4, 750–757, doi:10.3762/bjnano.4.85

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  • substrates in 2013. The best efficiencies were obtained by using cadmium sulfide (CdS) as buffer layer in solar cells with a glass/Mo/CIGS/CdS/i-ZnO/ZnO:Al stack. The buffer layer is an n-type semiconductor that forms the p–n junction with the p-type CIGS absorber, and also modifies the CIGS surface
  • chemistry, which is usually too sensitive for a direct deposition of the window layers. However, because of the toxicity of cadmium and the low optical band gap of CdS (2.4 eV [3]) that limits the light conversion of CIGS in the UV range of the solar spectrum, alternative materials have been developed. Most
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Published 13 Nov 2013

Nanoscopic surfactant behavior of the porin MspA in aqueous media

  • Ayomi S. Perera,
  • Hongwang Wang,
  • Tej B. Shrestha,
  • Deryl L. Troyer and
  • Stefan H. Bossmann

Beilstein J. Nanotechnol. 2013, 4, 278–284, doi:10.3762/bjnano.4.30

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  • underlying thermodynamic factors are discussed here. The results obtained provide crucial evidence in support of the hypothesis that, during vesicle formation, nanoscopic surfactant molecules, such as MspA, deviate from the principles underlined in classical surface chemistry. Keywords: charge-interaction
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Published 25 Apr 2013

Catalytic activity of nanostructured Au: Scale effects versus bimetallic/bifunctional effects in low-temperature CO oxidation on nanoporous Au

  • Lu-Cun Wang,
  • Yi Zhong,
  • Haijun Jin,
  • Daniel Widmann,
  • Jörg Weissmüller and
  • R. Jürgen Behm

Beilstein J. Nanotechnol. 2013, 4, 111–128, doi:10.3762/bjnano.4.13

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  • Lu-Cun Wang Yi Zhong Haijun Jin Daniel Widmann Jorg Weissmuller R. Jurgen Behm Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany Institut für Werkstoffforschung, Helmholtz-Zentrum Geesthacht, D-21502 Geesthacht, Germany Institute of Metal Research, Chinese Academy
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Published 19 Feb 2013
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