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Search for "surface interactions" in Full Text gives 57 result(s) in Beilstein Journal of Nanotechnology.

Friction force microscopy of tribochemistry and interfacial ageing for the SiOx/Si/Au system

  • Christiane Petzold,
  • Marcus Koch and
  • Roland Bennewitz

Beilstein J. Nanotechnol. 2018, 9, 1647–1658, doi:10.3762/bjnano.9.157

Graphical Abstract
  • of kinetic friction we removed the protective oxide layer from either the tip or the surface and created a tribochemical system of Au, Si, and SiOx (Table 1). Different aspects of tip–surface interactions are illustrated by the average friction forces (Figure 3), single lateral force traces from the
  • ). Results for the tip–surface interactions of the different tips and surfaces are presented in this section. Friction of a Au/Si tip sliding on oxidized Si(100) is illustrated by the black squares in Figure 3. Initially (section 1 in Figure 3) a low friction force of about 0.02 nN was measured for the
  • intact tip sliding against the intact oxide surface. Friction decreased slightly with scanning time until stabilizing after about 10 scans (Figure 4a). We attribute this decrease to structural changes at the sliding interface caused by tip–surface interactions, as scanning the same area ten times left an
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Published 05 Jun 2018

Electron interaction with copper(II) carboxylate compounds

  • Michal Lacko,
  • Peter Papp,
  • Iwona B. Szymańska,
  • Edward Szłyk and
  • Štefan Matejčík

Beilstein J. Nanotechnol. 2018, 9, 384–398, doi:10.3762/bjnano.9.38

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  • with some commonly used FEBID precursors [22] and have shown that in some cases a single ligand loss dominates the initial fragmentation following electron induced ionization or attachment. This may then induce other surface interactions. They also conclude that dissociation through neutral
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Published 01 Feb 2018

The nanofluidic confinement apparatus: studying confinement-dependent nanoparticle behavior and diffusion

  • Stefan Fringes,
  • Felix Holzner and
  • Armin W. Knoll

Beilstein J. Nanotechnol. 2018, 9, 301–310, doi:10.3762/bjnano.9.30

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  • 100 nm. This distance range interferes with several natural length scales of particle–surface interactions [8], such as the electrostatic interactions. The electrostatic interactions between charged objects and surfaces in a nanofluidic system decay approximately exponentially with separation and a
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Published 26 Jan 2018

Refractive index sensing and surface-enhanced Raman spectroscopy using silver–gold layered bimetallic plasmonic crystals

  • Somi Kang,
  • Sean E. Lehman,
  • Matthew V. Schulmerich,
  • An-Phong Le,
  • Tae-woo Lee,
  • Stephen K. Gray,
  • Rohit Bhargava and
  • Ralph G. Nuzzo

Beilstein J. Nanotechnol. 2017, 8, 2492–2503, doi:10.3762/bjnano.8.249

Graphical Abstract
  • promising as an analytical technique for real-time, fully label-free detection of molecules, both quantitatively and qualitatively, as well as for monitoring surface interactions [5][10][11]. Surface-enhanced Raman spectroscopy, better known as SERS, is another important analytical application that utilizes
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Published 24 Nov 2017

Adsorption of iron tetraphenylporphyrin on (111) surfaces of coinage metals: a density functional theory study

  • Hao Tang,
  • Nathalie Tarrat,
  • Véronique Langlais and
  • Yongfeng Wang

Beilstein J. Nanotechnol. 2017, 8, 2484–2491, doi:10.3762/bjnano.8.248

Graphical Abstract
  • gradient approximation [33][34] were employed. The van der Waals dispersive interaction correction according to Grimme's DFT-D2 method [35] was considered for inter- and intra-molecular interactions as well as molecule–surface interactions. The C6 parameter was optimized in a model system on Au(111) in
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Published 23 Nov 2017

Modeling adsorption of brominated, chlorinated and mixed bromo/chloro-dibenzo-p-dioxins on C60 fullerene using Nano-QSPR

  • Piotr Urbaszek,
  • Agnieszka Gajewicz,
  • Celina Sikorska,
  • Maciej Haranczyk and
  • Tomasz Puzyn

Beilstein J. Nanotechnol. 2017, 8, 752–761, doi:10.3762/bjnano.8.78

Graphical Abstract
  • – opportunities and risks of possible surface interactions Fullerene C60 [12][13][14], discovered in 1985, has a soccer ball-like structure [15] with a chemical structure representative of carbon nanostructures. Its unique properties and shape make C60 and its derivatives promising candidates for various
  • may be employed to improve environmental conditions [13][18]. On the other hand, if the sorption interactions can occur spontaneously in the environment, they may bring as much hope as they do risk [23][24][25][26]. Objective The possibility of surface interactions between fullerenes and organic
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Published 31 Mar 2017

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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  • , which lies between two and three dimensions, allowing for many new types of materials with promising new functions for future technologies. Since many material functions rely on molecule–surface interactions and low-dimensional properties, materials with large surface areas and a quantum-confined
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Published 27 Dec 2016

Experimental and simulation-based investigation of He, Ne and Ar irradiation of polymers for ion microscopy

  • Lukasz Rzeznik,
  • Yves Fleming,
  • Tom Wirtz and
  • Patrick Philipp

Beilstein J. Nanotechnol. 2016, 7, 1113–1128, doi:10.3762/bjnano.7.104

Graphical Abstract
  • ions and the samples. Numerical simulations are one tool which can provide important information about particle–surface interactions, both for inorganic [12][13][14][15] and organic samples [16][17][18][19]. For the analysis of organic matter, information on preferential sputtering and the modification
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Published 02 Aug 2016
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Published 15 Apr 2016

Surface coating affects behavior of metallic nanoparticles in a biological environment

  • Darija Domazet Jurašin,
  • Marija Ćurlin,
  • Ivona Capjak,
  • Tea Crnković,
  • Marija Lovrić,
  • Michal Babič,
  • Daniel Horák,
  • Ivana Vinković Vrček and
  • Srećko Gajović

Beilstein J. Nanotechnol. 2016, 7, 246–262, doi:10.3762/bjnano.7.23

Graphical Abstract
  • ligands such as PVP and BSA provide additional steric hindrances. Our results, in accordance with previously published data [48], imply that CIT, PVP and BSA provided colloidal stability for AgNPs irrespective to the type of surface interactions. It is interesting that we have recently observed [49] a
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Published 15 Feb 2016

Single-molecule mechanics of protein-labelled DNA handles

  • Vivek S. Jadhav,
  • Dorothea Brüggemann,
  • Florian Wruck and
  • Martin Hegner

Beilstein J. Nanotechnol. 2016, 7, 138–148, doi:10.3762/bjnano.7.16

Graphical Abstract
  • connection between the DNA spacer and the experimental target. When a certain protein or enzyme of interest is tethered to surface-modified beads it is desirable to avoid unspecific surface interactions between the optically trapped spheres. This can be achieved by using single molecular handles. The use of
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Published 29 Jan 2016

Surface-site reactivity in small-molecule adsorption: A theoretical study of thiol binding on multi-coordinated gold clusters

  • Elvis C. M. Ting,
  • Tatiana Popa and
  • Irina Paci

Beilstein J. Nanotechnol. 2016, 7, 53–61, doi:10.3762/bjnano.7.6

Graphical Abstract
  • oxidation of 2-propanol was positively correlated to not only the average unsaturation of the surface metal atoms, but also to the fraction of edge and corner atoms, which present the lowest coordination. With an end goal of developing a coordination-dependent description of aminoacid-surface interactions
  • , we focus, in the current work, on the surface-binding groups. To this end, we replaced molecular backbones with methyl groups, in order to remove factors such as lone-pair or charge-group surface interactions, and the overall backbone–surface interaction. We designed a 20-atom Au cluster, with gold
  • initial (user input) configuration. This limitation can be particularly problematic in cases where there is an overwhelming contributor to the potential energy surface such as in the case of molecule–surface interactions [70]. An elegant workaround is to use thermal energy as provided by an ab initio
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Published 18 Jan 2016

The role of low-energy electrons in focused electron beam induced deposition: four case studies of representative precursors

  • Rachel M. Thorman,
  • Ragesh Kumar T. P.,
  • D. Howard Fairbrother and
  • Oddur Ingólfsson

Beilstein J. Nanotechnol. 2015, 6, 1904–1926, doi:10.3762/bjnano.6.194

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Published 16 Sep 2015

Enhanced fullerene–Au(111) coupling in (2√3 × 2√3)R30° superstructures with intermolecular interactions

  • Michael Paßens,
  • Rainer Waser and
  • Silvia Karthäuser

Beilstein J. Nanotechnol. 2015, 6, 1421–1431, doi:10.3762/bjnano.6.147

Graphical Abstract
  • , respectively, which should be lifted, if intermolecular interactions or molecule–surface interactions become relevant. However, as reported so far, the electronic configuration of C60 remains largely unperturbed upon adsorption and the charge transfer to C60 on Au(111) is small, which also has been confirmed
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Published 29 Jun 2015

Dynamic force microscopy simulator (dForce): A tool for planning and understanding tapping and bimodal AFM experiments

  • Horacio V. Guzman,
  • Pablo D. Garcia and
  • Ricardo Garcia

Beilstein J. Nanotechnol. 2015, 6, 369–379, doi:10.3762/bjnano.6.36

Graphical Abstract
  • of AFM configuration (AM-AFM versus bimodal AFM) or the model to describe the tip–surface forces. By activating any of the tabs a new panel will show the available options. Figure 1b shows the options available to model the tip–surface interactions. An example of force data panel is shown in Figure
  • first two flexural modes are excited and an amplitude modulation feedback controls the amplitude of the first mode [33]. The parameters used in the bimodal AM simulations are presented in Table 4. Figure 6 shows the tip response under the influence of excitation and the tip–surface interactions. The
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Published 04 Feb 2015

Boosting the local anodic oxidation of silicon through carbon nanofiber atomic force microscopy probes

  • Gemma Rius,
  • Matteo Lorenzoni,
  • Soichiro Matsui,
  • Masaki Tanemura and
  • Francesc Perez-Murano

Beilstein J. Nanotechnol. 2015, 6, 215–222, doi:10.3762/bjnano.6.20

Graphical Abstract
  • the latter, AFM, it excels in versatility, as its working principle allows AFM to be applied conveniently onto any surface and in a variety of atmospheres [2][3][4]. Nonetheless, SPL based on AFM can rely on a number of tip–surface interactions (chemical, electrical, thermal, etc.), including tip
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Published 19 Jan 2015

In situ metalation of free base phthalocyanine covalently bonded to silicon surfaces

  • Fabio Lupo,
  • Cristina Tudisco,
  • Federico Bertani,
  • Enrico Dalcanale and
  • Guglielmo G. Condorelli

Beilstein J. Nanotechnol. 2014, 5, 2222–2229, doi:10.3762/bjnano.5.231

Graphical Abstract
  • relevant information on the interactions occurring between the anchored molecules and the substrates. The spectra suggest that the phthalocyanine ring interacts significantly with the flat Si surface, whilst ring–surface interactions are less relevant on porous Si. The surface-bonded molecules were then
  • surface interactions. Results and Discussion Synthesis of 1-Pc Phthalocyanine 1-Pc was prepared according to a slightly modified literature procedure [22] starting from the 4-(ω-undecenyloxy)phthalonitrile in refluxing 1-pentanol in presence of a catalytic amount of 1,8- diazabicyclo[5.4.0]undec-7-ene
  • ruled out since the reverse trend was observed for PSi-1-Pc. Overall the metalation appears more efficient in the case of the porous silicon substrate compared to flat Si(100). This behavior is likely to be associated to the different surface interactions observed for Si-1-Pc and PSi-1-Pc. In the case
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Published 25 Nov 2014

Dissipation signals due to lateral tip oscillations in FM-AFM

  • Michael Klocke and
  • Dietrich E. Wolf

Beilstein J. Nanotechnol. 2014, 5, 2048–2057, doi:10.3762/bjnano.5.213

Graphical Abstract
  • ). Parameter choice The experimentally observed dissipation rate due to tip–surface interactions in FM-AFM is at least 0.01 eV per cycle. We will now consider the question, what fraction of the observed dissipation rate may be accounted for by the excitation of lateral tip oscillations. Monte-Carlo study of
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Published 10 Nov 2014

Effects of surface functionalization on the adsorption of human serum albumin onto nanoparticles – a fluorescence correlation spectroscopy study

  • Pauline Maffre,
  • Stefan Brandholt,
  • Karin Nienhaus,
  • Li Shang,
  • Wolfgang J. Parak and
  • G. Ulrich Nienhaus

Beilstein J. Nanotechnol. 2014, 5, 2036–2047, doi:10.3762/bjnano.5.212

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  • NP surfaces. For both planar and NP surfaces, still more knowledge about the detailed physicochemical processes at the molecular level would be highly desirable. In our view, studying protein–surface interactions by using NPs rather than planar surfaces has significant technical advantages, provided
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Published 07 Nov 2014

Dynamic calibration of higher eigenmode parameters of a cantilever in atomic force microscopy by using tip–surface interactions

  • Stanislav S. Borysov,
  • Daniel Forchheimer and
  • David B. Haviland

Beilstein J. Nanotechnol. 2014, 5, 1899–1904, doi:10.3762/bjnano.5.200

Graphical Abstract
  • , an enhanced force sensitivity is achieved due to multiplication by the sharply peaked cantilever transfer function. Measurement of response at multiple eigenmodes can provide additional information about the tip–surface interactions [4][5][6][7][8][9][10][11]. The optical detection system [12] common
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Published 29 Oct 2014

Real-time monitoring of calcium carbonate and cationic peptide deposition on carboxylate-SAM using a microfluidic SAW biosensor

  • Anna Pohl and
  • Ingrid M. Weiss

Beilstein J. Nanotechnol. 2014, 5, 1823–1835, doi:10.3762/bjnano.5.193

Graphical Abstract
  • the interaction of calcium carbonate with standard carboxylate self-assembled monolayer sensor chips. Different fluids, with and without biomolecular components, were investigated. The pH-dependent surface interactions of two bio-inspired cationic peptides, AS8 and ES9, which are similar to an
  • carbonate surface interactions seem to be less well controlled at flow rates higher than 50 µL/min. One can assume that, at higher flow rates, the interaction of calcium and/or (bi)carbonate does not reach the maximum capacity of the sensor surface. Calcium carbonate and citric acid interactions In order to
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Published 22 Oct 2014
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  • , I want to investigate to what degree such an inversion is possible by studying the sensitivity of the functions d(FN) and ac(FN) to the functional form of the surface interactions. Figure 11 shows the contact radius as a function of the normal load. One can see that the exponential model and the MD
  • coefficients. Figure 12 reveals that it is possible to adjust the free parameters of the MD model to fit d(FN) curves for a broad variety of surface interactions. However, one should abstain from deducing contact areas based on such fits, as this can result in non-negligible errors. For example, if we only
  • for μT = 1. This is demonstrated in Figure 18. It reveals that information on the (effective) near-range surface interactions at small separation are difficult to obtain from experimentally measured load-displacement curves. I conclude this section with an analysis of the gap profile for repulsive
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Published 08 Apr 2014

Photoactivation of luminescence in CdS nanocrystals

  • Valentyn Smyntyna,
  • Bogdan Semenenko,
  • Valentyna Skobeeva and
  • Nikolay Malushin

Beilstein J. Nanotechnol. 2014, 5, 355–359, doi:10.3762/bjnano.5.40

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  • fluorescence enhancement (PFE) [1][2][3][4][5], intermittency or blinking of photoluminescence [6][7][8], and a blue- or red-shift of the exciton PL of nanocrystals [5][9]. Despite the large number of works devoted to the surface interactions in II–IV QDs [2][3][4][5][10] the mechanisms responsible for the
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Published 25 Mar 2014

The role of surface corrugation and tip oscillation in single-molecule manipulation with a non-contact atomic force microscope

  • Christian Wagner,
  • Norman Fournier,
  • F. Stefan Tautz and
  • Ruslan Temirov

Beilstein J. Nanotechnol. 2014, 5, 202–209, doi:10.3762/bjnano.5.22

Graphical Abstract
  • rapid development of scanning probe microscopy (SPM) techniques, investigations of adsorbate–surface interactions on a single-molecule level have become possible [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Especially interesting is the possibility of probing the molecule–surface
  • carboxylic oxygen atoms. The interaction potentials of the carboxylic oxygen and the backbone atoms are described via two separate parameter sets that amount to a total of five free parameters (if additional chemical molecule–surface interactions are absent). These five parameters, which describe the
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Published 26 Feb 2014

Structural development and energy dissipation in simulated silicon apices

  • Samuel Paul Jarvis,
  • Lev Kantorovich and
  • Philip Moriarty

Beilstein J. Nanotechnol. 2013, 4, 941–948, doi:10.3762/bjnano.4.106

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  • single rotational degree of freedom, the difference in tip–surface interactions can be as significant as for a completely different tip structure. Simulation details Our investigation is performed with ab initio density functional theory (DFT) simulations carried out by using the SIESTA code [41], which
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Published 20 Dec 2013
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