Design of a nanostructured mucoadhesive system containing curcumin for buccal application: from physicochemical to biological aspects

• Sabrina Barbosa de Souza Ferreira,
• Gustavo Braga,
• Évelin Lemos Oliveira,
• Jéssica Bassi da Silva,
• Hélen Cássia Rosseto,
• Lidiane Vizioli de Castro Hoshino,
• Mauro Luciano Baesso,
• Wilker Caetano,
• Craig Murdoch,
• Helen Elizabeth Colley and
• Marcos Luciano Bruschi

Beilstein J. Nanotechnol. 2019, 10, 2304–2328, doi:10.3762/bjnano.10.222

• containing CUR, the Tsol–gel is considered suitable (between 25 and 37 °C). Texture profile analysis The mechanical properties of the preparations with and without CUR were evaluated by texture profile analysis (TPA). The information about the physical structure of gels obtained by TPA are useful for the

• parameter [9]. Regarding the temperature effect (at 25 and 37 °C), the preparations demonstrated elasticity and cohesiveness values significantly lower (p < 0.05) at 37 °C. Syringeability The work required to expel the formulation from a syringe (syringeability) at 25 °C was investigated by a texture

Targeted therapeutic effect against the breast cancer cell line MCF-7 with a CuFe₂O₄/silica/cisplatin nanocomposite formulation

• B. Rabindran Jermy,
• Vijaya Ravinayagam,
• Widyan A. Alamoudi,
• Dana Almohazey,
• Hatim Dafalla,
• Lina Hussain Allehaibi,
• Abdulhadi Baykal,
• Muhammet S. Toprak and
• Thirunavukkarasu Somanathan

Beilstein J. Nanotechnol. 2019, 10, 2217–2228, doi:10.3762/bjnano.10.214

• adsorption technique (Figure 2). HYPS particles show a type IV isotherm corresponding to the presence of mesopores. The silica hysteresis loop tends to be present at a higher relative pressure of P/P0 > 0.8. The HYPS texture exhibited a surface area of 170 m2/g, pore volume of 0.35 cm3/g with an intermediate

Nitrogen-vacancy centers in diamond for nanoscale magnetic resonance imaging applications

• Alberto Boretti,
• Lorenzo Rosa,
• Jonathan Blackledge and
• Stefania Castelletto

Beilstein J. Nanotechnol. 2019, 10, 2128–2151, doi:10.3762/bjnano.10.207

• developing magnetic devices. This is a challenging task in condensed matter physics because the magnetic field reconstruction is based on stray field measurements, which is an example of an under-constrained inverse problem. The stray magnetic field generated by a planar magnetic texture is determined by the

Facile synthesis of carbon nanotube-supported NiO//Fe₂O₃ for all-solid-state supercapacitors

• Shengming Zhang,
• Xuhui Wang,
• Yan Li,
• Xuemei Mu,
• Yaxiong Zhang,
• Jingwei Du,
• Guo Liu,
• Xiaohui Hua,
• Yingzhuo Sheng,
• Erqing Xie and
• Zhenxing Zhang

Beilstein J. Nanotechnol. 2019, 10, 1923–1932, doi:10.3762/bjnano.10.188

• –Halenda (BJH) pore size distribution of CC-CNT@Fe2O3 are shown in Supporting Information File 1, Figure S4. It is a type-IV isotherm, indicating the mesoporous texture of the sample (Figure S4a, Supporting Information File 1). The BET surface area was found to be 24.9 m2·g−1, much larger than that of pure

• , verifying the mesoporous texture of the sample (Figure S7a, Supporting Information File 1). The BET surface area was 34.4 m2·g−1, much larger than that of pure carbon cloth (0.2 m2·g−1). Pore size distribution (Figure S4b, Supporting Information File 1) shows that numerous pores have a size of about 2 and

Oblique angle deposition of nickel thin films by high-power impulse magnetron sputtering

• Hamidreza Hajihoseini,
• Movaffaq Kateb,
• Snorri Þorgeir Ingvarsson and
• Jon Tomas Gudmundsson

Beilstein J. Nanotechnol. 2019, 10, 1914–1921, doi:10.3762/bjnano.10.186

• -based shape memory alloy thin films utilized in micro-actuator applications [9]. It is well known that microstructure, texture and structure of thin films can have significant influence on the magnetic and other functional properties of the films. The magnetic properties of evaporated [10][11

• texture with low density and columnar grain growth that is elongated in the direction of the incoming flux [32]. As a result of this structure, some unique optical [33][34][35], electrical [36][37], mechanical [37][38] and magnetic [39] properties of thin films have been reported. By employing an ionized

• in-plane texture perpendicular to the direction of the incoming flux, which corresponds to the easy axis of the film. However, more recently there are reports on a 90° rotation of the easy axis in a Co film deposited at 75° tilt angle [45]. In the present study we investigate the effect of angle of

Processing nanoporous organic polymers in liquid amines

• Jeehye Byun,
• Damien Thirion and
• Cafer T. Yavuz

Beilstein J. Nanotechnol. 2019, 10, 1844–1850, doi:10.3762/bjnano.10.179

• conditions maintained its original shape, and the rigid texture of the annealed COP-100-Film indicated its high potential for fabricating a flat carbon surface on a variety of substrates (Figure 6b, inset) [29]. Conclusion In this study, a new phenomenon is discovered to nanoporous polymer networks. The

Magnetic segregation effect in liquid crystals doped with carbon nanotubes

• Danil A. Petrov,
• Pavel K. Skokov,
• Alexander N. Zakhlevnykh and
• Dmitriy V. Makarov

Beilstein J. Nanotechnol. 2019, 10, 1464–1474, doi:10.3762/bjnano.10.145

• the initial homogeneous planar texture of the liquid crystal–carbon nanotubes mixture is disturbed in a threshold manner (Fréedericksz transition). The orientational and concentration distributions of the suspension are studied for different values of the magnetic field strength and segregation

Magnetic field-assisted assembly of iron oxide mesocrystals: a matter of nanoparticle shape and magnetic anisotropy

• Julian J. Brunner,
• Marina Krumova,
• Helmut Cölfen and
• Elena V. Sturm (née Rosseeva)

Beilstein J. Nanotechnol. 2019, 10, 894–900, doi:10.3762/bjnano.10.90

• symmetry of packing arrangement and orientational order in 2D and 3D superlattices. The 3D structures of the self-assembled nanocubes can be approximated by a slightly distorted fcc superlattice, thereby the texture-like wide-angle diffraction pattern indicates the formation of mesocrystals with a

• single crystal-like fast Fourier transforms (FFTs) and texture-like EDs are shown in Figure 3. The large yellow circles indicate the position from which the FFTs and EDs are obtained. The symmetry of the projected mesocrystal surface, which is parallel to the substrate can be described either in p4mm

• FFTs were taken. The zone axes contributing to the ED patterns are noted and some diffraction reflections are highlighted and colour coded. (a) A directed mesocrystal with a projected p4mm layer symmetry (inset: 200 1/µm). (b) The ED pattern of the directed mesocrystal shown in (a). The texture-like

On the transformation of “zincone”-like into porous ZnO thin films from sub-saturated plasma enhanced atomic layer deposition

• Alberto Perrotta,
• Julian Pilz,
• Stefan Pachmajer,
• Antonella Milella and
• Anna Maria Coclite

Beilstein J. Nanotechnol. 2019, 10, 746–759, doi:10.3762/bjnano.10.74

• is targeted, since its crystal growth and texture affect the optical and (piezo)electrical properties of the material [64][65][66]. The crystallinity of the pristine zincone-like layers and its evolution during and after calcination were monitored using in situ X-ray diffraction (XRD) and grazing

• . Both confirms a preferential out-of-plane texture of the crystallites in the [100] direction for longer plasma exposure times during deposition. For the calcined samples, in the literature major changes are reported in the optical and morphological properties of pure ZnO thin films deposited with

• index as measured with SE. It can therefore be concluded that the combination of plasma exposure time and annealing allows for the tuning of the final texture of the resulting ZnO. Furthermore, the temperature range of 350–450 °C would be crucial in the formation and the clogging of porosity. Liang et

Quantification and coupling of the electromagnetic and chemical contributions in surface-enhanced Raman scattering

• Yarong Su,
• Yuanzhen Shi,
• Ping Wang,
• Jinglei Du,
• Markus B. Raschke and
• Lin Pang

Beilstein J. Nanotechnol. 2019, 10, 549–556, doi:10.3762/bjnano.10.56

• were prepared and chemically functionalized with benzenethiol. Planar Au and Ag films were prepared by metal evaporation, with minimal grain texture and boundaries providing for the smallest EM enhancement of the samples investigated. Nanostructured Ag substrates were fabricated by interference

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• campaign of a material with known growth rate and density, as measured by X-ray reflectivity (XRR). This procedure calibrated for possible variations in surface area of the QCM crystal due to evolution of texture during growth. The growth rate was measured as a function of deposition temperature for each

One-step nonhydrolytic sol–gel synthesis of mesoporous TiO₂ phosphonate hybrid materials

• Yanhui Wang,
• P. Hubert Mutin and
• Johan G. Alauzun

Beilstein J. Nanotechnol. 2019, 10, 356–362, doi:10.3762/bjnano.10.35

• organosilsesquioxane (O1.5Si–R–O1.5). These hybrids are usually prepared by conventional sol–gel processing, i.e., by hydrolysis and condensation of alkoxysilane precursors, which offers an excellent control over composition and homogeneity, while texture can be tuned using various templating approaches [9]. In the

• use an excess of metal precursor in order to form a metal oxide–phosphonate hybrid material. There are very few examples of the preparation of such materials by sol–gel methods [15][16], and the texture of these materials has not been reported. Actually, most metal oxide–phosphonate-based porous

pH-mediated control over the mesostructure of ordered mesoporous materials templated by polyion complex micelles

• Emilie Molina,
• Mélody Mathonnat,
• Jason Richard,
• Patrick Lacroix-Desmazes,
• Martin In,
• Philippe Dieudonné,
• Thomas Cacciaguerra,
• Corine Gérardin and
• Nathalie Marcotte

Beilstein J. Nanotechnol. 2019, 10, 144–156, doi:10.3762/bjnano.10.14

• oligomers, inducing sudden macroscopic precipitation in less than 3 min. Two different mass concentrations of the reaction medium, expressed by the wt % of DHBC, were used. The 3.9 wt % concentration was aimed at evaluating the influence of the pH on the texture, structure and chemical composition of the

Amorphous Ni_xCo_yP-supported TiO₂ nanotube arrays as an efficient hydrogen evolution reaction electrocatalyst in acidic solution

• Yong Li,
• Peng Yang,
• Bin Wang and
• Zhongqing Liu

Beilstein J. Nanotechnol. 2019, 10, 62–70, doi:10.3762/bjnano.10.6

• crystallographic texture, scanning electron microscopy (SEM, JSM-5900 LV, JEOV) for micro-morphology, transmission electron microscopy (TEM, Tecnai G2 F20 S-TWIN) for microstructure, UV–vis diffuse reflectance spectroscopy (UV2100) for photoabsorption properties, X-ray photoelectron spectroscopy (XPS, Escalab

• crystallographic texture of the electrode samples was not altered by the electrodeposition of Ni–P or NiCoP. The intensity of the diffraction peaks follow the order: TNAs > Ni–P/TNAs > NixCoyP/TNAs. It is suggested that after electrodeposition, there was an amorphous deposit covering the TiO2 surface to dampen the

A comparison of tarsal morphology and traction force in the two burying beetles Nicrophorus nepalensis and Nicrophorus vespilloides (Coleoptera, Silphidae)

• Liesa Schnee,
• Benjamin Sampalla,
• Josef K. Müller and
• Oliver Betz

Beilstein J. Nanotechnol. 2019, 10, 47–61, doi:10.3762/bjnano.10.5

• texture, the calculated surface free energies of 33.3 mN·m−1 (micro-rough surface) and 42.2 mN·m−1 (rough surface) (Table 2 in [19]), respectively, should not be considered as absolute values, which can only be determined for ideal, perfectly smooth surfaces [20]. The plasma-treated Al2O3 grinding disc

Controlling surface morphology and sensitivity of granular and porous silver films for surface-enhanced Raman scattering, SERS

• Sherif Okeil and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2018, 9, 2813–2831, doi:10.3762/bjnano.9.263

• show a dependence of the significant and most prominent reflexes on the film texture (Figure 4b). As can be seen from Figure 4b and Figure 4c the preferential orientation of the crystallites is different from that of bulk silver (JCPDS file No. 04-0783). In case of the as-sputtered silver film the

Friction reduction through biologically inspired scale-like laser surface textures

• Johannes Schneider,
• Vergil Djamiykov and
• Christian Greiner

Beilstein J. Nanotechnol. 2018, 9, 2561–2572, doi:10.3762/bjnano.9.238

• ][8][9], and the morphological texturing of the sliding surfaces themselves [10][11]. The latter has attracted a lot of attention in the last two decades, even though first experiments demonstrating the potential of a morphological surface texture go back to the 1960s [11]. Among the different

• . In contrast, our own previous work aimed at retaining the advantages of using laser light to generate a morphological scale-like surface texture [23]. We successfully textured bearing steel surfaces with scale-like morphological patterns and were able to reduce dry friction forces by more than 40

• the testing of a possible size effect under dry sliding conditions, a different scale-like surface morphology was chosen. Here, the scales were organized with an offset between each row, resulting in a surface texture as presented in Figure 1c and 1d. This surface morphology was created for four

High-throughput micro-nanostructuring by microdroplet inkjet printing

• Hendrikje R. Neumann and
• Christine Selhuber-Unkel

Beilstein J. Nanotechnol. 2018, 9, 2372–2380, doi:10.3762/bjnano.9.222

• droplets. The broad distribution of droplet diameter on the NiTi foil might also be due to dirt particles on the surface as shown by the bright spots in the AFM image in Figure 5D. Another factor that might also influence the droplet diameter is the surface texture of NiTi on copper (Figure 3E). There is a

• ), the gold nanoparticles arrange themselves in the grooves of the material texture (see Figure 3B1–E1). The NND of these samples, shown in Figure 6, is given for the gold nanoparticles at the boundaries. For better comparison of nanopatterned surfaces with established techniques, the NND for spin-coated

• result of the distinct arrangement of the gold nanodots in the texture-induced grooves on these samples. The distribution for the sputtered NiTi thin film differs from the other samples. The mean NND here is about 27 nm and 50% of the data set for this sample has a small variation of 10 nm. However, the

Performance analysis of rigorous coupled-wave analysis and its integration in a coupled modeling approach for optical simulation of complete heterojunction silicon solar cells

• Ziga Lokar,
• Benjamin Lipovsek,
• Marko Topic and
• Janez Krc

Beilstein J. Nanotechnol. 2018, 9, 2315–2329, doi:10.3762/bjnano.9.216

• substructure of the solar cell, including the texture, thin passivation and contact layers. Inverted pyramidal textures of different sizes were included in the simulations. The simulations rapidly converge as long as the textures are small (in the (sub)micrometer range), while for larger microscale textures

• (feature sizes of a few micrometers), this is not the case. Small textures were optimized to decrease the reflectance, and consequently, increase the absorption in the active layers of the solar cell. Decreasing the flat parts of the texture was shown to improve performance. For simulations of structures

• our previous work presented in [20] and to other coupling approaches such as the OPTOS matrix formulation [21], our CMA was used for the simulation of the solar cell structure including a double (nano + micro) texture. Modeling Rigorous coupled-wave analysis method RCWA, also called the Fourier modal

Induced smectic phase in binary mixtures of twist-bend nematogens

• Anamarija Knežević,
• Irena Dokli,
• Marin Sapunar,
• Suzana Šegota,
• Ute Baumeister and
• Andreja Lesac

Beilstein J. Nanotechnol. 2018, 9, 1297–1307, doi:10.3762/bjnano.9.122

• ]. The N–NTB phase transition has been confirmed observing characteristic blocky texture from which polygon and rope textures developed. The X-ray diffraction (XRD) measurements in both nematic phases show that the d value for the maxima of the inner scattering in the nematic phase is at about 1.4 nm for

• characteristic texture. As can be seen in Figure 2, upon addition of BB to CBI, the Iso–N, as well as the N–NTB transition temperatures, decrease linearly with increasing BB content. In terms of a molecular field theory developed to predict phase diagrams for binary mixtures of nematics [19], this suggests that

• with BB. On cooling from the isotropic liquid, mixtures containing less than 50 mol % of BB show the nematic and the NTB phase identified by marble (Figure 3a) and polygonal texture (Figure 3b), respectively. Further cooling resulted in increased viscosity and vitrification with no change in texture

Formation and development of nanometer-sized cybotactic clusters in bent-core nematic liquid crystalline compounds

• Yuri P. Panarin,
• Sithara P. Sreenilayam,
• Jagdish K. Vij,
• Anne Lehmann and
• Carsten Tschierske

Beilstein J. Nanotechnol. 2018, 9, 1288–1296, doi:10.3762/bjnano.9.121

• homogeneously planar texture using polarized optical microscopy (POM). Figure 4 shows POM textures with different applied AC and DC voltages. An application of a 100 Hz square wave voltage above an amplitude of 10 V causes turbulent convection with domains of different shapes appearing in the cell. A study of

• clusters (open black squares) in the bulk nematic phase, FC. Polarized optical microscopy (POM) texture of a 7.8 µm BCN66 cell with an applied peak voltage of an AC square wave of 100 Hz. The original left-most texture is not affected by the AC voltage applied up to 10 V. Other textures were taken at the

Understanding the performance and mechanism of Mg-containing oxides as support catalysts in the thermal dry reforming of methane

• Nor Fazila Khairudin,
• Mohd Farid Fahmi Sukri,
• Mehrnoush Khavarian and
• Abdul Rahman Mohamed

Beilstein J. Nanotechnol. 2018, 9, 1162–1183, doi:10.3762/bjnano.9.108

• alkaline properties and thermal stability of MgO, which is more suitable for CO2 and CH4 adsorption. In fact, MgO offers low surface area, which could further be improved, and yields optimum texture properties with a combination of alumina [45][114][115][116][117]. Based on the investigation of the

An implementation of spin–orbit coupling for band structure calculations with Gaussian basis sets: Two-dimensional topological crystals of Sb and Bi

• Sahar Pakdel,
• Mahdi Pourfath and
• J. J. Palacios

Beilstein J. Nanotechnol. 2018, 9, 1015–1023, doi:10.3762/bjnano.9.94

• antimonene including SOC, as obtained with the small-core pseudopotential basis set and the same enhancement factor as in the previous section. The results compare rather well down to any practical detail with those reported in the literature. In the inset of Figure 5 we show that the spin texture of the

• reference, thin gray curves indicate the bands before adding SOC. The same lattice structure relaxed with VASP has been used for all cases. Band structure of 9 layers, ABC stacking Sb(111) films as obtained from small core pseudopotential basis. The spin texture around the Γ point is presented in the inset

Comparative study of sculptured metallic thin films deposited by oblique angle deposition at different temperatures

• Susann Liedtke,
• Christoph Grüner,
• Jürgen W. Gerlach and
• Bernd Rauschenbach

Beilstein J. Nanotechnol. 2018, 9, 954–962, doi:10.3762/bjnano.9.89

• temperature affect the columnar tilt angles and the porosity of the sculptured thin films. Exemplarily for tilted Al columns deposited at 77 K and at 300 K, in-plane pole figure measurements are carried out. A tendency to form a biaxial texture as well as a change in the crystalline structure depending on the

• substrate temperature is found for those films. Keywords: biaxial texture; metallic tilted columns; oblique angle deposition; porosity; shadowing; thin films; Introduction The ability to produce highly porous metallic thin films is a substantial issue for a large number of applications [1]. For instance

• columnar morphology, the relation between tilt angle β, porosity P and incidence angle θ is in focus of this paper. Further, the influence of surface diffusion and changes in the crystalline structure are studied. Results and Discussion Morphology and texture Figure 1 shows tilted Al columns that are

A review of carbon-based and non-carbon-based catalyst supports for the selective catalytic reduction of nitric oxide

• Shahreen Binti Izwan Anthonysamy,
• Syahidah Binti Afandi,
• Mehrnoush Khavarian and
• Abdul Rahman Bin Mohamed

Beilstein J. Nanotechnol. 2018, 9, 740–761, doi:10.3762/bjnano.9.68