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Search for "surface properties" in Full Text gives 192 result(s) in Beilstein Journal of Nanotechnology.

Periodic structures on liquid-phase smectic A, nematic and isotropic free surfaces

  • Anna N. Bagdinova,
  • Evgeny I. Demikhov,
  • Nataliya G. Borisenko,
  • Sergei M. Tolokonnikov,
  • Gennadii V. Mishakov and
  • Andrei V. Sharkov

Beilstein J. Nanotechnol. 2018, 9, 342–352, doi:10.3762/bjnano.9.34

Graphical Abstract
  • ; liquid crystals; microscopy; smectic A phase; Introduction The considerable interest in studies of liquid crystalline free boundaries that has recently arisen is due to their intrinsic free surface properties which are not influenced by the substrate anchoring [1][2]. This is very important for many
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Published 30 Jan 2018

Wafer-scale bioactive substrate patterning by chemical lift-off lithography

  • Chong-You Chen,
  • Chang-Ming Wang,
  • Hsiang-Hua Li,
  • Hong-Hseng Chan and
  • Wei-Ssu Liao

Beilstein J. Nanotechnol. 2018, 9, 311–320, doi:10.3762/bjnano.9.31

Graphical Abstract
  • create distinct regions carrying dissimilar surface properties for a variety of applications [21]. With conformal contact-induced reactions, the top layer Au–Au bond breakage on an alkanethiol SAM covered Au substrate leads to the exposure of fresh Au toward the exterior environment. These vacancies can
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Published 26 Jan 2018

Anchoring of a dye precursor on NiO(001) studied by non-contact atomic force microscopy

  • Sara Freund,
  • Antoine Hinaut,
  • Nathalie Marinakis,
  • Edwin C. Constable,
  • Ernst Meyer,
  • Catherine E. Housecroft and
  • Thilo Glatzel

Beilstein J. Nanotechnol. 2018, 9, 242–249, doi:10.3762/bjnano.9.26

Graphical Abstract
  • CPD is increased above the islands compared to the bare NiO surface. In areas with a lower molecule density, e.g., at step edges and certain areas on the terraces, the CPD contrast is much weaker implying a direct influence of the self-assembly on the electrical surface properties. In summary
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Published 23 Jan 2018

Nanoprofilometry study of focal conic domain structures in a liquid crystalline free surface

  • Anna N. Bagdinova,
  • Evgeny I. Demikhov,
  • Nataliya G. Borisenko and
  • Sergei M. Tolokonnikov

Beilstein J. Nanotechnol. 2017, 8, 2544–2551, doi:10.3762/bjnano.8.254

Graphical Abstract
  • ; nanoprofilometer; smectic-A phase; Introduction The free surface of liquid crystals has been a subject of great interest since the beginning of liquid crystal science. Liquid crystalline free boundary research is very important because it shows that the intrinsic free surface properties are not influenced by the
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Published 29 Nov 2017

Interface conditions of roughness-induced superoleophilic and superoleophobic surfaces immersed in hexadecane and ethylene glycol

  • Yifan Li,
  • Yunlu Pan and
  • Xuezeng Zhao

Beilstein J. Nanotechnol. 2017, 8, 2504–2514, doi:10.3762/bjnano.8.250

Graphical Abstract
  • studies that need to be addressed. Firstly, fabricating surfaces with controlled roughness parameters, omniphobicity and interface properties is difficult. Roughness parameters, wettability and some other surface properties have individual effects on the boundary slip and need to be separated. Secondly
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Published 27 Nov 2017

High-stress study of bioinspired multifunctional PEDOT:PSS/nanoclay nanocomposites using AFM, SEM and numerical simulation

  • Alfredo J. Diaz,
  • Hanaul Noh,
  • Tobias Meier and
  • Santiago D. Solares

Beilstein J. Nanotechnol. 2017, 8, 2069–2082, doi:10.3762/bjnano.8.207

Graphical Abstract
  • -resonance frequency and quality factor are often referred to as mechanical parameters. Although, there are methods to approximately calibrate for the Young’s modulus, they require a standard reference sample with similar properties to the unknown sample, and this includes the surface properties [51
  • properties of typical cantilevers (traditional testing of polymeric or biological materials is performed at a frequency range several orders of magnitude lower [53]). For these reasons, CRFM typically only provides mapping of the relative surface properties, although with high spatial resolution. Given the
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Published 04 Oct 2017

Imidazolium-based ionic liquids used as additives in the nanolubrication of silicon surfaces

  • Patrícia M. Amorim,
  • Ana M. Ferraria,
  • Rogério Colaço,
  • Luís C. Branco and
  • Benilde Saramago

Beilstein J. Nanotechnol. 2017, 8, 1961–1971, doi:10.3762/bjnano.8.197

Graphical Abstract
  • topography and chemical composition of the substrates surfaces were determined with atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS), respectively. Correlations between the obtained friction coefficients and the surface properties as well as the lubricants viscosity were attempted in
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Published 20 Sep 2017

Fluorination of vertically aligned carbon nanotubes: from CF4 plasma chemistry to surface functionalization

  • Claudia Struzzi,
  • Mattia Scardamaglia,
  • Jean-François Colomer,
  • Alberto Verdini,
  • Luca Floreano,
  • Rony Snyders and
  • Carla Bittencourt

Beilstein J. Nanotechnol. 2017, 8, 1723–1733, doi:10.3762/bjnano.8.173

Graphical Abstract
  • , the emerging demand in functionalizing the surface of carbon-based materials has led to the use of various atoms for the tuning of the surface properties [12][13][14][15][16] and fluorine-based gas precursors have also been employed, including CF4 [17], with special attention to their effect on carbon
  • ][24]. In single- and multiwalled nanotubes the tuning of surface properties via fluorine-based plasma has been investigated highlighting the modification of morphology, chemical composition and electronic properties, as well as focusing on the field emission performances and the thermal stability [25
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Published 21 Aug 2017

Surface functionalization of 3D-printed plastics via initiated chemical vapor deposition

  • Christine Cheng and
  • Malancha Gupta

Beilstein J. Nanotechnol. 2017, 8, 1629–1636, doi:10.3762/bjnano.8.162

Graphical Abstract
  • flexibility and rapid prototyping. The ability to functionalize the surfaces of 3D-printed objects allows the bulk properties, such as material strength or printability, to be chosen separately from surface properties, which is critical to expanding the breadth of 3D printing applications. In this work, we
  • . This limitation presents a problem for application-driven print objects, because consideration of material printability must supersede other functionalities, such as biocompatibility or responsiveness to stimuli. Thus, controlling post-printing surface properties is critical to expanding the breadth of
  • hydrophobic surface properties and do not promote cellular differentiation [3][18]. Surface modification of printed scaffolds can allow for the tuning of surface functionalization to promote vascularization and tissue regeneration while maintaining control over the mechanical robustness of the bulk structure
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Published 08 Aug 2017

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

  • Suneel Kumar,
  • Ashish Kumar,
  • Ashish Bahuguna,
  • Vipul Sharma and
  • Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

Graphical Abstract
  • morphology of catalytic material. Therefore the fabrication of g-C3N4 with different microstructures is expected to show different surface properties and ability to enhance the photocatalytic performance. As per one of the reports by Zhu et al., g-C3N4 synthesized by using melamine, thiourea, or urea as
  • reactions but mainly hydrogen evolution reactions [67]. The lattice structure of g-C3N4 is composed of C–N with short interlayer distances and amino functional groups with larger periodic vacancies [67]. In addition to this, g-C3N4 possesses excellent chemical and thermal stability, unique surface
  • properties with unsaturated N-atoms for anchoring active sites [69]. Furthermore, the stacked 2D layered structure of g-C3N4 consists of single-layer nitrogen heteroatom-substituted graphite nanosheets, formed through sp2 hybridization of C and N atoms, and various layers are bound together by van der Waals
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Published 03 Aug 2017

Cationic PEGylated polycaprolactone nanoparticles carrying post-operation docetaxel for glioma treatment

  • Cem Varan and
  • Erem Bilensoy

Beilstein J. Nanotechnol. 2017, 8, 1446–1456, doi:10.3762/bjnano.8.144

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  • . Nanoparticle-based drug delivery systems can be prepared with synthetic and natural polymers. As an advantage, their surface properties can be modified to increase cellular penetration and prolonged drug release. Additionally, suitable nanoparticle-based drug delivery systems can bypass biological barriers or
  • distribution and surface properties. According to the results in Table 2, the addition of surfactant did not reduce the particle size; on the contrary, the mean particle size significantly increased proportional to the concentration of PF68 for both polymer PCL and mePEG-PCL (p < 0.05). Although it has been
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Published 12 Jul 2017

Micro- and nano-surface structures based on vapor-deposited polymers

  • Hsien-Yeh Chen

Beilstein J. Nanotechnol. 2017, 8, 1366–1374, doi:10.3762/bjnano.8.138

Graphical Abstract
  • Hsien-Yeh Chen Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan 10.3762/bjnano.8.138 Abstract Vapor-deposition processes and the resulting thin polymer films provide consistent coatings that decouple the underlying substrate surface properties and can be
  • words, effective selectivity for the deposition of nonfunctional poly(p-xylylene) has been achieved, and the family of functionalized poly(p-xylylene) is now manageable [82]. Conclusion As more stringent specifications are required for designing the surface properties of prospective materials, and in
  • addition, the development of new devices is pursued with complicated geometries and minimized sizes, the surface properties of such materials/devices now also require a more defined and flexible presentation of the chemical functionalities (e.g., multifunctional or gradient distribution) and the precise
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Published 04 Jul 2017

Nanotopographical control of surfaces using chemical vapor deposition processes

  • Meike Koenig and
  • Joerg Lahann

Beilstein J. Nanotechnol. 2017, 8, 1250–1256, doi:10.3762/bjnano.8.126

Graphical Abstract
  • achieved via various vapor deposition strategies, for instance, using masks, exploiting surface properties that lead to spatially selective deposition, via the use of additional porogens or by employing oblique angle polymerization deposition. Here, we provide a concise review of these studies. Keywords
  • : polymer coatings; polymer structures; structured coatings; vapor deposition polymerization; Review Introduction Polymer coatings have wide-spread applications, from electronics [1], to sensor systems [2] to biotechnology [3]. The ability to spatially control the surface properties in order to further
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Published 12 Jun 2017

Vapor-phase-synthesized fluoroacrylate polymer thin films: thermal stability and structural properties

  • Paul Christian and
  • Anna Maria Coclite

Beilstein J. Nanotechnol. 2017, 8, 933–942, doi:10.3762/bjnano.8.95

Graphical Abstract
  • deposition techniques (e.g., plasma-enhanced CVD). Therefore, depending on the application and on the desired polymer properties, one can choose to work in conditions that drive crystallinity and hydrophobicity or thermally stable surface properties instead. Molecular structure of the monomers PFDA and EGDMA
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Published 26 Apr 2017

Vapor deposition routes to conformal polymer thin films

  • Priya Moni,
  • Ahmed Al-Obeidi and
  • Karen K. Gleason

Beilstein J. Nanotechnol. 2017, 8, 723–735, doi:10.3762/bjnano.8.76

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  • films; vapor deposition; Review Introduction Conformal coverage is achieved when a film of uniform thickness precisely follows the geometry of the underlying substrate. Conformal coatings allow for surface properties to be optimized independently from the choice of the bulk material and shape of the
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Published 28 Mar 2017

Diffusion and surface alloying of gradient nanostructured metals

  • Zhenbo Wang and
  • Ke Lu

Beilstein J. Nanotechnol. 2017, 8, 547–560, doi:10.3762/bjnano.8.59

Graphical Abstract
  • works have been carried out on advancing surface alloying techniques of metals with a preformed nanostructured surface layer. The advantages are distinct, for example, improving surface properties such as wear and corrosion resistance with higher energy/time efficiency, reducing work-piece distortion
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Published 03 Mar 2017

Study of the surface properties of ZnO nanocolumns used for thin-film solar cells

  • Neda Neykova,
  • Jiri Stuchlik,
  • Karel Hruska,
  • Ales Poruba,
  • Zdenek Remes and
  • Ognen Pop-Georgievski

Beilstein J. Nanotechnol. 2017, 8, 446–451, doi:10.3762/bjnano.8.48

Graphical Abstract
  • surface properties of ZnO NCs and the binding state of present elements were investigated before and after different plasma treatments, typically used in plasma-enhanced CVD solar cell deposition processes, by X-ray photoelectron spectroscopy (XPS). Photothermal deflection spectroscopy (PDS) was used to
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Published 16 Feb 2017

Biological and biomimetic materials and surfaces

  • Stanislav Gorb and
  • Thomas Speck

Beilstein J. Nanotechnol. 2017, 8, 403–407, doi:10.3762/bjnano.8.42

Graphical Abstract
  • %) environmental humidity leads to a decrease of attachment forces generated by beetles [18]. The paper by England et al. systematically investigated beetle attachment ability on eight different surfaces having different structural and physico-chemical properties. The results show that chemical surface properties
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Editorial
Published 08 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

Graphical Abstract
  • route was demonstrated, and by selecting the type of silane coupling agent the surface properties of the TiO2 nanoparticles could be tailored. This synthesis route has been further developed into a two-step synthesis to TiO2–SiO2 core–shell nanoparticles. Combustion of the silane coupling agents up to
  • , surface coverage, and hydrophobicity. Tuning the surface properties of the nanoparticles for different applications by selecting the silane coupling agent is discussed. We further report the effect of heat treatment of the nanoparticles for the formation of core–shell TiO2–SiO2 nanoparticles. Experimental
  • offer versatility for tuning the surface properties of the TiO2 nanoparticles that are required for selected applications. Further modifications of the synthesis route are also possible for tuning the properties towards various types of applications. For example, applying the nanoparticles as filler in
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Published 31 Jan 2017

Colorimetric gas detection by the varying thickness of a thin film of ultrasmall PTSA-coated TiO2 nanoparticles on a Si substrate

  • Urmas Joost,
  • Andris Šutka,
  • Meeri Visnapuu,
  • Aile Tamm,
  • Meeri Lembinen,
  • Mikk Antsov,
  • Kathriin Utt,
  • Krisjanis Smits,
  • Ergo Nõmmiste and
  • Vambola Kisand

Beilstein J. Nanotechnol. 2017, 8, 229–236, doi:10.3762/bjnano.8.25

Graphical Abstract
  • 2p photoemission line in the overview spectrum (168.2 eV, Figure 3c) is consistent with the sulfonic acid group [30]. This demonstrates that the nanoparticles are covered with PTSA molecules, yielding specific surface properties such as polarity and affinity towards the specific compounds. The vapor
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Published 24 Jan 2017

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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  • in which the structural stability of the protein, the ionic strength, the pH value as well as the surface properties can influence the affinity of the biomolecule toward the inorganic interface. In addition to the particular characteristics of each protein, the structural size and proportion of
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Published 18 Nov 2016

Fingerprints of a size-dependent crossover in the dimensionality of electronic conduction in Au-seeded Ge nanowires

  • Maria Koleśnik-Gray,
  • Gillian Collins,
  • Justin D. Holmes and
  • Vojislav Krstić

Beilstein J. Nanotechnol. 2016, 7, 1574–1578, doi:10.3762/bjnano.7.151

Graphical Abstract
  • components for high-performance applications [1][2][3]. Besides representing prospective field-effect devices [4][5], they have attracted interest as building blocks for nanoscaled electrooptical components [6] and, due to their specific surface properties [4] can be envisaged as high-potential chemical and
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Published 02 Nov 2016

Surface roughness rather than surface chemistry essentially affects insect adhesion

  • Matt W. England,
  • Tomoya Sato,
  • Makoto Yagihashi,
  • Atsushi Hozumi,
  • Stanislav N. Gorb and
  • Elena V. Gorb

Beilstein J. Nanotechnol. 2016, 7, 1471–1479, doi:10.3762/bjnano.7.139

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  • of surface, each with different chemical and topographical properties. The results of traction force tests clearly demonstrated that chemical surface properties, such as static/dynamic de-wettability of water and oil caused by specific chemical compositions, had no significant effect on the
  • surfaces. Surface properties of the samples. Sample surface compositions as estimated by XPS. Acknowledgements The authors thank Charlotte Bellmann and Ingo Grawe (both Kiel University) for their assistance with the force measurements and Emre Kizilkan (Kiel University) for the introduction into the
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Published 18 Oct 2016

Three-gradient regular solution model for simple liquids wetting complex surface topologies

  • Sabine Akerboom,
  • Marleen Kamperman and
  • Frans A. M. Leermakers

Beilstein J. Nanotechnol. 2016, 7, 1377–1396, doi:10.3762/bjnano.7.129

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Published 04 Oct 2016

Gold nanoparticles covalently assembled onto vesicle structures as possible biosensing platform

  • M. Fátima Barroso,
  • M. Alejandra Luna,
  • Juan S. Flores Tabares,
  • Cristina Delerue-Matos,
  • N. Mariano Correa,
  • Fernando Moyano and
  • Patricia G. Molina

Beilstein J. Nanotechnol. 2016, 7, 655–663, doi:10.3762/bjnano.7.58

Graphical Abstract
  • electrode (AuE). For that, a simple and well-defined redox system was used consisting of K4[Fe(CN)6] [26], which first was employed to characterize the surface properties of the AuE modified with the SH–DOPC LUVs without AuNPs. To perform this electrochemical characterization, firstly a clean AuE surface
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Published 02 May 2016
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