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Search for "organic molecules" in Full Text gives 219 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

A novel polyhedral oligomeric silsesquioxane-modified layered double hydroxide: preparation, characterization and properties

  • Xianwei Zhang,
  • Zhongzhu Ma,
  • Hong Fan,
  • Carla Bittencourt,
  • Jintao Wan and
  • Philippe Dubois

Beilstein J. Nanotechnol. 2018, 9, 3053–3068, doi:10.3762/bjnano.9.284

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  • . In contrast, the LDH modified with OCPS seems to have a denser interlayer packing. Previous literature suggests that the intercalation with linear organic molecules, e.g., surfactants, into pristine LDH can significantly weaken the hydrogen-bonding interactions between interlayer water, interlayer
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Published 19 Dec 2018

Colloidal chemistry with patchy silica nanoparticles

  • Pierre-Etienne Rouet,
  • Cyril Chomette,
  • Laurent Adumeau,
  • Etienne Duguet and
  • Serge Ravaine

Beilstein J. Nanotechnol. 2018, 9, 2989–2998, doi:10.3762/bjnano.9.278

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  • CMs can be clearly seen on the scanning electron microscopy (SEM) images shown as inserts of Figure 3e,f. We also aimed to mimic at the colloidal scale the possible bonding of atoms of different natures to a same central atom, which is the source of the richness of the organic molecules. We focused on
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Published 06 Dec 2018

Layered calcium phenylphosphonate: a hybrid material for a new generation of nanofillers

  • Kateřina Kopecká,
  • Ludvík Beneš,
  • Klára Melánová,
  • Vítězslav Zima,
  • Petr Knotek and
  • Kateřina Zetková

Beilstein J. Nanotechnol. 2018, 9, 2906–2915, doi:10.3762/bjnano.9.269

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  • order to achieve a homogenous distribution within the volume of the polymer matrix. This is a drawback for natural clays as they are usually hydrophilic, thus their application is more suitable for water-based systems. This limitation can be overcome by intercalation of organic molecules into the
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Published 20 Nov 2018

Nanoantenna structures for the detection of phonons in nanocrystals

  • Alexander G. Milekhin,
  • Sergei A. Kuznetsov,
  • Ilya A. Milekhin,
  • Larisa L. Sveshnikova,
  • Tatyana A. Duda,
  • Ekaterina E. Rodyakina,
  • Alexander V. Latyshev,
  • Volodymyr M. Dzhagan and
  • Dietrich R. T. Zahn

Beilstein J. Nanotechnol. 2018, 9, 2646–2656, doi:10.3762/bjnano.9.246

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  • metal surfaces proposed in [1] has been the subject of intensive research over the past years [2][3][4]. Several groups showed that the IR response by organic molecules can be significantly enhanced in a variety of organic systems by depositing the molecules on nanostructured surfaces of noble metals
  • wavelength – appearing in the visible spectral range and of interest for optical spectroscopy [16]. It was shown that regular linear nanoantennas fabricated by nanolithography demonstrate enhancement of the SEIRA signal from vibrational modes in organic molecules such as octadecanethiol (ODT) [17] and 4,4
  • fructose concentrations in solutions, including market beverages [20] with concentrations as low as 10 mg/dL. Despite the significant progress in SEIRA of organic molecules at ultra-low concentrations, the plasmonic enhancement of IR absorption by inorganic nanomaterials like nanocrystals (NCs) has not
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Published 05 Oct 2018

Impact of the anodization time on the photocatalytic activity of TiO2 nanotubes

  • Jesús A. Díaz-Real,
  • Geyla C. Dubed-Bandomo,
  • Juan Galindo-de-la-Rosa,
  • Luis G. Arriaga,
  • Janet Ledesma-García and
  • Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

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  • free radicals that are responsible for the degradation of organic molecules. As the ta increased, the signal for surface OH groups was enhanced, suggesting a direct relationship with the fluorine content [34]. A third feature (O 1s III, 532 eV) was also present in the oxygen spectra and was ascribed to
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Published 04 Oct 2018

SERS active Ag–SiO2 nanoparticles obtained by laser ablation of silver in colloidal silica

  • Cristina Gellini,
  • Francesco Muniz-Miranda,
  • Alfonso Pedone and
  • Maurizio Muniz-Miranda

Beilstein J. Nanotechnol. 2018, 9, 2396–2404, doi:10.3762/bjnano.9.224

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  • several months. The TEM images show that nanometer-sized silver is deposited on the surface of silica nanoparticles, instead of forming isolated Ag nanoparticles in the aqueous medium. The Ag–SiO2 nanoparticles can effectively adsorb organic molecules such as 2,2'-bipyridine while maintaining their
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Published 06 Sep 2018

Block copolymers for designing nanostructured porous coatings

  • Roberto Nisticò

Beilstein J. Nanotechnol. 2018, 9, 2332–2344, doi:10.3762/bjnano.9.218

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  • one of the blocks, through the formation of hydrogen bonding between the small organic molecules and one of the copolymer blocks. This way, it is possible to favor the normal orientation of the cylindrical nanodomains [94]. In this paper, resorcinol is selected as the orienting molecule to direct the
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Published 29 Aug 2018

Nanotribology

  • Enrico Gnecco,
  • Susan Perkin,
  • Andrea Vanossi and
  • Ernst Meyer

Beilstein J. Nanotechnol. 2018, 9, 2330–2331, doi:10.3762/bjnano.9.217

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  • “Understanding and Controlling Nano and Mesoscale Friction”, which ran from 2013 to 2017. Here the covered topics include but are not limited to controlled manipulation of nanoparticles, optically trapped colloidal and ionic systems, superlubricity of graphene, sliding friction of organic molecules, charge
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Published 28 Aug 2018

Quantitative comparison of wideband low-latency phase-locked loop circuit designs for high-speed frequency modulation atomic force microscopy

  • Kazuki Miyata and
  • Takeshi Fukuma

Beilstein J. Nanotechnol. 2018, 9, 1844–1855, doi:10.3762/bjnano.9.176

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  • [1]. It has been used under ultrahigh vacuum conditions for high-resolution imaging of various materials, including metals, semiconductors, metal oxides, and organic molecules [2][3][4][5]. Furthermore, recent advances in FM-AFM have enabled atom manipulation and identification at room temperature [6
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Published 21 Jun 2018

Photoluminescence of CdSe/ZnS quantum dots in nematic liquid crystals in electric fields

  • Margarita A. Kurochkina,
  • Elena A. Konshina and
  • Daria Khmelevskaia

Beilstein J. Nanotechnol. 2018, 9, 1544–1549, doi:10.3762/bjnano.9.145

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  • between CdSe/ZnS and organic molecules can lead to extinction or enhancement of the QD luminescence. Figure 2a shows the relative intensity (I/I0) of the QD luminescence as a function of the electric field strength. The relative PL intensity of the QDs increased by four times when an electric field
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Published 23 May 2018

Enzymatically promoted release of organic molecules linked to magnetic nanoparticles

  • Chiara Lambruschini,
  • Silvia Villa,
  • Luca Banfi,
  • Fabio Canepa,
  • Fabio Morana,
  • Annalisa Relini,
  • Paola Riani,
  • Renata Riva and
  • Fulvio Silvetti

Beilstein J. Nanotechnol. 2018, 9, 986–999, doi:10.3762/bjnano.9.92

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Published 27 Mar 2018

Electro-optical interfacial effects on a graphene/π-conjugated organic semiconductor hybrid system

  • Karolline A. S. Araujo,
  • Luiz A. Cury,
  • Matheus J. S. Matos,
  • Thales F. D. Fernandes,
  • Luiz G. Cançado and
  • Bernardo R. A. Neves

Beilstein J. Nanotechnol. 2018, 9, 963–974, doi:10.3762/bjnano.9.90

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  • packing and/or ordering [7]. Previous works have demonstrated that intermolecular interactions can dramatically reduce the luminescence quantum yield in solid-state devices [8][9][10][11][12][13]. In this context, it is important to control the ordering of π-conjugated organic molecules to make their use
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Published 23 Mar 2018

Cyclodextrin inhibits zinc corrosion by destabilizing point defect formation in the oxide layer

  • Abdulrahman Altin,
  • Maciej Krzywiecki,
  • Adnan Sarfraz,
  • Cigdem Toparli,
  • Claudius Laska,
  • Philipp Kerger,
  • Aleksandar Zeradjanin,
  • Karl J. J. Mayrhofer,
  • Michael Rohwerder and
  • Andreas Erbe

Beilstein J. Nanotechnol. 2018, 9, 936–944, doi:10.3762/bjnano.9.86

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  • because of β-CD adsorption is too high to enable easy electron transfer at active corrosion conditions. This work shows that the energy level alignment across the interface can be significantly affected by the presence of simple organic molecules. The defect chemistry of the oxide plays also an important
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Published 20 Mar 2018

Perfusion double-channel micropipette probes for oxygen flux mapping with single-cell resolution

  • Yang Gao,
  • Bin Li,
  • Riju Singhal,
  • Adam Fontecchio,
  • Ben Pelleg,
  • Zulfiya Orynbayeva,
  • Yury Gogotsi and
  • Gary Friedman

Beilstein J. Nanotechnol. 2018, 9, 850–860, doi:10.3762/bjnano.9.79

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  • as individual cells at subcellular resolution. Keywords: double-barrel pipette; hydrodynamic confinement; perfusion; oxygen flux; single-cell metabolic analysis; Introduction Transport, production and consumption of gasses, ions, and organic molecules are fluxes that sustain life. Relatively few
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Published 09 Mar 2018

Tuning adhesion forces between functionalized gold colloidal nanoparticles and silicon AFM tips: role of ligands and capillary forces

  • Sven Oras,
  • Sergei Vlassov,
  • Marta Berholts,
  • Rünno Lõhmus and
  • Karine Mougin

Beilstein J. Nanotechnol. 2018, 9, 660–670, doi:10.3762/bjnano.9.61

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  • , varying from 20 up to 70 nm diameter. The carboxylic acid terminated Au NPs are surrounded by short chains organic molecules that confer a disordered SAMs coating with low surface density, compared to –OH tail group. For these raw NPs bearing residual stabilizing carboxy group, one can reasonably suppose
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Published 20 Feb 2018

Mechanistic insights into plasmonic photocatalysts in utilizing visible light

  • Kah Hon Leong,
  • Azrina Abd Aziz,
  • Lan Ching Sim,
  • Pichiah Saravanan,
  • Min Jang and
  • Detlef Bahnemann

Beilstein J. Nanotechnol. 2018, 9, 628–648, doi:10.3762/bjnano.9.59

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  • in this system (as do organic molecules in the solution) and thus lack the potential for redox reactions to occur. The generated charge carriers are trapped by the presence of noble metal. This leads to saturation when accumulating charge carrier reaches it limits. Thus, the gathered charges are
  • also reported the use of Ag NPs to remove phenol and drive oxidation of benzyl alcohol to benzaldehyde under UV light. This verifies the role of the LSPR effect and interband transition of Ag NPs in activating organic molecules for oxidation under UV–vis irradiation [169]. Au NPs are more suitable for
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Published 19 Feb 2018

Green synthesis of fluorescent carbon dots from spices for in vitro imaging and tumour cell growth inhibition

  • Nagamalai Vasimalai,
  • Vânia Vilas-Boas,
  • Juan Gallo,
  • María de Fátima Cerqueira,
  • Mario Menéndez-Miranda,
  • José Manuel Costa-Fernández,
  • Lorena Diéguez,
  • Begoña Espiña and
  • María Teresa Fernández-Argüelles

Beilstein J. Nanotechnol. 2018, 9, 530–544, doi:10.3762/bjnano.9.51

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  • attributed to surface state emission, intrinsic band emission, triple ground state emission, dipole emission involving electron–phonon coupling, transition from surface electrons to valence holes, self-trapped excitons and to the presence of small organic molecules. Moreover, the characteristic excitation
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Published 13 Feb 2018

Kinetics of solvent supported tubule formation of Lotus (Nelumbo nucifera) wax on highly oriented pyrolytic graphite (HOPG) investigated by atomic force microscopy

  • Sujit Kumar Dora,
  • Kerstin Koch,
  • Wilhelm Barthlott and
  • Klaus Wandelt

Beilstein J. Nanotechnol. 2018, 9, 468–481, doi:10.3762/bjnano.9.45

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  • studying the epitaxial growth of organic molecules with aliphatic chains on HOPG which occurs due to the perfectly-matched interatomic distances in the molecules and the HOPG substrate. Watel and coworkers have demonstrated for long chain alkanes a parallel orientation of the carbon skeleton with respect
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Published 07 Feb 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

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  • , Switzerland 10.3762/bjnano.9.26 Abstract The properties of metal oxides, such as charge-transport mechanisms or optoelectronic characteristics, can be modified by functionalization with organic molecules. This kind of organic/inorganic surface is nowadays highly regarded, in particular, for the design of
  • (II) oxide (NiO); non-contact atomic force microscopy; p-type semiconductor; sub-molecular resolution; Introduction Inorganic substrates functionalized with organic molecules are nowadays highly regarded materials for emerging hybrid technologies including molecular electronics, photocatalysts or
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Published 23 Jan 2018

The rational design of a Au(I) precursor for focused electron beam induced deposition

  • Ali Marashdeh,
  • Thiadrik Tiesma,
  • Niels J. C. van Velzen,
  • Sjoerd Harder,
  • Remco W. A. Havenith,
  • Jeff T. M. De Hosson and
  • Willem F. van Dorp

Beilstein J. Nanotechnol. 2017, 8, 2753–2765, doi:10.3762/bjnano.8.274

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  • . High-purity Au deposits are of interest for many applications, such as the directed self-assembly of functional organic molecules [45], seeds for the growth of nanorods or nanotubes [46] and for plasmonics [47]. Two Au(I) compounds have been used for the deposition of pure gold. Utke et al
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Published 20 Dec 2017

L-Lysine-grafted graphene oxide as an effective adsorbent for the removal of methylene blue and metal ions

  • Yan Yan,
  • Jie Li,
  • Fangbei Kong,
  • Kuankuan Jia,
  • Shiyu He and
  • Baorong Wang

Beilstein J. Nanotechnol. 2017, 8, 2680–2688, doi:10.3762/bjnano.8.268

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  • organic molecules and metal nanoparticles via covalent or non-covalent binding [13][14][15][16]. Recently, functionalized graphene materials have shown great potential as highly efficient absorbers for the treatment of environmental pollutants and wastewater purification [17][18][19]. However, most of the
  • defects and π–π interactions on the graphene basal planes and edges can enhance the adsorption capacities for pollutants [3][20]. We inferred that organic molecules modifying graphene might improve their adsorption capabilities. For instance, Swager et al. reported the surface functionalization of
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Published 13 Dec 2017

The role of ligands in coinage-metal nanoparticles for electronics

  • Ioannis Kanelidis and
  • Tobias Kraus

Beilstein J. Nanotechnol. 2017, 8, 2625–2639, doi:10.3762/bjnano.8.263

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  • particles with organic molecules, one may sinter them to create metallic, conductive connections [32]. The conditions required for successful sintering depend on the tendency of the surface ligands to desorb, which lets particles fuse without melting [122]. Metal nanoparticle films with low insulator–metal
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Published 07 Dec 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

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  • agreement with the experimental one (5.35 eV) [23]. After the adsorption, the work function was reduced to 4.19 eV. This value is consistent with that measured on copper phthalocyanine (CuPc) adsorbed on Au(111) [24]. Adsorption on Ag(111) and Cu(111) surfaces It is well known for large organic molecules
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Published 23 Nov 2017

Expanding the molecular-ruler process through vapor deposition of hexadecanethiol

  • Alexandra M. Patron,
  • Timothy S. Hooker,
  • Daniel F. Santavicca,
  • Corey P. Causey and
  • Thomas J. Mullen

Beilstein J. Nanotechnol. 2017, 8, 2339–2344, doi:10.3762/bjnano.8.233

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  • iterative deposition of bifunctional organic molecules and metal ions. Note that the use of a thiol as one of the two functionalities ensures that deposition and growth of the multilayer only occurs on the surface of the metal, not the exposed substrate. By using molecules of discrete length, the thickness
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Published 07 Nov 2017

Electronic structure, transport, and collective effects in molecular layered systems

  • Torsten Hahn,
  • Tim Ludwig,
  • Carsten Timm and
  • Jens Kortus

Beilstein J. Nanotechnol. 2017, 8, 2094–2105, doi:10.3762/bjnano.8.209

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  • ; Introduction Implementing molecular spintronics requires the understanding and the ability to modify and control charge-transport characteristics of organic molecules. Thus a solid understanding of the basic effects that govern the transport characteristics in the desired material is required for the
  • . Further studies indicated that the Co orbital is filled due to the charge transfer at the interface to MnPc. Experiments and theory showed that a bulk material can be formed that maintains the charge and spin transfer between the two molecules [12]. Similar observations were made for organic molecules
  • between the organic molecules and metallic contacts. These interactions may substantially alter the electronic structure of the organic material and needs to be carefully investigated [24]. In the following, we present DFT results for model systems were two phthalocyanine systems are in contact with Au
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Published 06 Oct 2017
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