Humidity-dependent electrical performance of CuO nanowire networks studied by electrochemical impedance spectroscopy

• Jelena Kosmaca,
• Juris Katkevics,
• Jana Andzane,
• Raitis Sondors,
• Liga Jasulaneca,
• Raimonds Meija,
• Kiryl Niherysh,
• Yelyzaveta Rublova and
• Donats Erts

Beilstein J. Nanotechnol. 2023, 14, 683–691, doi:10.3762/bjnano.14.54

• compositions aligned by DEP [25]. In some of these works, electrochemical impedance spectroscopy (EIS) was used as an effective tool to study the effects of chemical and physical absorption of water on the nanostructured surfaces of active CuO elements of the systems [23][24]. To the best of our knowledge, the

• nanowires are synthesized by thermal oxidation [9] and aligned between metallic microelectrodes by DEP [26]. Electrical properties of the nanowire-based system at various RH values are assessed by EIS [27][28]. To attempt a systematic study on the suitability of the CuO nanowire networks for different

• interconnects, the distance between the metallic microelectrodes was varied from 2 to 8 µm [26]. The arrays of microelectrode pairs with different gap distances were grouped in four rows on a chip (Figure 1b). The dielectrophoretically aligned nanowires connected the gaps between pairs of microelectrodes

Suspension feeding in Copepoda (Crustacea) – a numerical model of setae acting in concert

• Alexander E. Filippov,
• Wencke Krings and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 603–615, doi:10.3762/bjnano.14.50

• , Massachusetts, USA). Our discrete numerical model describes the dynamics of two pairs of initially parallel aligned elastic crests, resembling the maxillae 1 and 2. The conceptual structure of the model is depicted in Figure 10. The dynamic behavior of the model can be found in the movie in Supporting

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

• and Gong discuss the organization of gels [103]. Specifically, they outline a unique anisotropic hydrogel consisting of uniaxially aligned lamellar bilayers in an amorphous gel matrix. This gel organization exhibits a beautiful structural color that is sensitive to mechanical and chemical stimuli. The

A distributed active patch antenna model of a Josephson oscillator

• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2023, 14, 151–164, doi:10.3762/bjnano.14.16

• power efficiency is close to the optimal approx. 50%. The operation frequency should be aligned with the Josephson frequency at the characteristics voltage, Ic0Rn, of JJs. For operation at the primary mode, one side of the patch should be a ≃ λ/2, where λ = λ0/ is the wavelength inside the patch and εr

Intermodal coupling spectroscopy of mechanical modes in microcantilevers

• Ioan Ignat,
• Bernhard Schuster,
• Jonas Hafner,
• MinHee Kwon,
• Daniel Platz and
• Ulrich Schmid

Beilstein J. Nanotechnol. 2023, 14, 123–132, doi:10.3762/bjnano.14.13

• aligned with any known mode or harmonic. Both lead to an unstable regime for the amplitude of the cavity mode. Having another eigenmode as the pump was slightly explored before [18], yet its linewidth was not taken into consideration. Another nonlinear effect can be observed in T3–F1. Here, the local

Characterisation of a micrometer-scale active plasmonic element by means of complementary computational and experimental methods

• Ciarán Barron,
• Giulia Di Fazio,
• Samuel Kenny,
• Silas O’Toole,
• Robin O’Reilly and
• Dominic Zerulla

Beilstein J. Nanotechnol. 2023, 14, 110–122, doi:10.3762/bjnano.14.12

• 561.4 nm, typically incident at 0.2 mW after filtering, was used as the incident light source. The collimated light from an optical fibre was spatially filtered through a 300 μm aperture and a polariser aligned to the plane of rotation ensuring p-polarisation for SPP excitation as seen in Figure 2. The

Rapid and sensitive detection of box turtles using an electrochemical DNA biosensor based on a gold/graphene nanocomposite

• Abu Hashem,
• M. A. Motalib Hossain,
• Ab Rahman Marlinda,
• Mohammad Al Mamun,
• Khanom Simarani and
• Mohd Rafie Johan

Beilstein J. Nanotechnol. 2022, 13, 1458–1472, doi:10.3762/bjnano.13.120

• -specific DNA sequence was chosen as the probe from aligned sequences with the highest mismatch with 29 nontarget species (Figure 1). From the aligned sequences, a 31 base length sequence was chosen as the probe. The selected probe sequence was matched 100% with the BT DNA and 6–14 bases (19–45%) were

• NCBI database (https://www.ncbi.nlm.nih.gov/) and aligned using the MEGA5.2 [73] sequence alignment software followed by ClustalW [74] to find intraspecies conserved and interspecies hypervariable regions. The specific DNA sequence of BT was selected as a probe by comparing the BT cytb gene sequence

• with the same gene of other nontarget species within the aligned sequences having the maximum mismatch with nontarget sequences (Figure 1). Then, the designed probe sequence was submitted to BLAST (basic local alignment search tool) on NCBI to check the in silico specificity by comparing with all

Growing up in a rough world: scaling of frictional adhesion and morphology of the Tokay gecko (Gekko gecko)

• Anthony J. Cobos and
• Timothy E. Higham

Beilstein J. Nanotechnol. 2022, 13, 1292–1302, doi:10.3762/bjnano.13.107

• and pes of the gecko, when pulled across a surface, do not have all of the toes aligned parallel to the direction of movement. In a study of Tokay geckos, Stewart and Higham [16] used an apparatus to pull individuals across an acrylic glass platform while obtaining high-speed video in ventral view

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• et al. [34] developed a technique based on field emission-induced growth by growing a single metal nanowire at the AFM tip and forming vertically aligned nanowire probes on AFM cantilever beams of different types and force constants. This type of probe has properties such as a high aspect ratio and

• extract vertically aligned carbon nanotubes based on the surface layer of the substrate. This method extracts single-walled carbon nanotubes (SWNTs) on the substrate surface based on the observation of micromachined tips by first fabricating vertically aligned SWNT substrates with isolation effects

Application of nanoarchitectonics in moist-electric generation

• Jia-Cheng Feng and
• Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

• ); permission conveyed through Copyright Clearance Center, Inc. This content is not subject to CC BY 4.0. (j) SEM image showing a highly aligned PVA@DA/PVDF NF array. The LSCM image shows PVA-wrapped DA/PVDF NFs. Figure 10j was reproduced from [76], Li, T. et al., “Power Generation from Moisture Fluctuations

Bioselectivity of silk protein-based materials and their bio-inspired applications

• Hendrik Bargel,
• Vanessa T. Trossmann,
• Christoph Sommer and
• Thomas Scheibel

Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81

• silk, poly-A and GA sequences in the spider dragline thread form nanocrystalline hydrophobic β-sheets aligned along the fibre axis, which are embedded in a matrix of more hydrophilic GGX and GPG(X)n regions responsible for helical and spring-like secondary structures with fewer hydrogen bonds and

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

• Lingling Xia,
• Qinyue Wang and
• Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

• find appropriate substrates with lattice similarity to the preferred crystallographic orientation of the targeted coordination polymer. Parallelly aligned Cu(OH)2 nanobelts were used to guide the epitaxial growth of Cu2(BDC)2 (BDC = benzenedicarboxylic acid). Centimeter-scale micropore alignment was

• . Figure 7a was reproduced from [138], C. Avci et al., “Metal-Organic Framework Photonic Balls: Single Object Analysis for Local Thermal Probing”, Advanced Materials, with permission from John Wiley and Sons. Copyright © 2021 WILEY‐VCH GmbH. This content is not subject to CC BY 4.0. b) Photos of aligned

Design and selection of peptides to block the SARS-CoV-2 receptor binding domain by molecular docking

• Kendra Ramirez-Acosta,
• Ivan A. Rosales-Fuerte,
• J. Eduardo Perez-Sanchez,
• Alfredo Nuñez-Rivera,
• Josue Juarez and
• Ruben D. Cadena-Nava

Beilstein J. Nanotechnol. 2022, 13, 699–711, doi:10.3762/bjnano.13.62

• ); distribution of electrostatic potential on the surface of APD peptide candidates docked to the SARS-CoV-2 RBD (Figure S2); secondary structure, docking, and distribution of electrostatic charges of aligned peptides (Figure S3); physicochemical properties, hydrogen bonds, and hydrophobic interactions of the

Experimental and theoretical study of field-dependent spin splitting at ferromagnetic insulator–superconductor interfaces

• Peter Machon,
• Michael J. Wolf,
• Detlef Beckmann and
• Wolfgang Belzig

Beilstein J. Nanotechnol. 2022, 13, 682–688, doi:10.3762/bjnano.13.60

• observed in EuS/Al structures [45][46], and the microscopic origin is yet unclear. A possible explanation are misaligned spins at the interface, which are nearly free and therefore gradually aligned by the applied field. The misaligned spins might be the result of partial oxidation of the EuS surface

Quantitative dynamic force microscopy with inclined tip oscillation

• Philipp Rahe,
• Daniel Heile,
• Reinhard Olbrich and
• Michael Reichling

Beilstein J. Nanotechnol. 2022, 13, 610–619, doi:10.3762/bjnano.13.53

• model calculation is required to determine the uncertainty in the measured force due to the inclined tip oscillation. Precise forces are measured if the data recording path, here introduced as the axis w, is aligned parallel to the tip sampling path, here described as the vector The resulting measured

A new method for obtaining the magnetic shape anisotropy directly from electron tomography images

• Cristian Radu,
• Ioana D. Vlaicu and
• Andrei C. Kuncser

Beilstein J. Nanotechnol. 2022, 13, 590–598, doi:10.3762/bjnano.13.51

• MNPs is generated. Filtering utility: Handling the diffraction contrast in electron tomography is still an ongoing issue [28][29]. In this regard, the Magn3t software is accompanied by an in-house developed novel image filtering tool, which can be applied on well-aligned experimental tomography tilt

• better 3D reconstruction. The filtering utility can be used independently from the Magn3t software on any aligned experimental tilt series in the common mrc format. Results and Discussion In order to demonstrate both capabilities and limits of the software, two examples are considered, that is, (i) an

• nanoparticles has been used for further tests. A −67 to +67 tomographic tilt series has been obtained with 1° steps. The series has been aligned using Tomviz [31] and ImageJ [32] software. The aligned series has been reconstructed using Genfire. The Rietveld refinement of the XRD spectra (Figure 4a) revealed

Zinc oxide nanostructures for fluorescence and Raman signal enhancement: a review

• Ioana Marica,
• Fran Nekvapil,
• Maria Ștefan,
• Cosmin Farcău and
• Alexandra Falamaș

Beilstein J. Nanotechnol. 2022, 13, 472–490, doi:10.3762/bjnano.13.40

• allowed for the decoration of vertically aligned cone-shaped ZnO nanorods with Ag NPs on their sides and their top ends [35], and magnetron sputtering [7][36]. Electron beam evaporation of, for example, a 30 nm Au layer on ZnO nanopillars arrays [37] or of ZnO-elevated Au dimer nanostructures (Figure 2a,b

• density of the free carriers or by creating “hot spots” on the ZnO nanosubstrates. For example, it has been observed that randomly oriented ZnO nanowires showed higher SERS enhancement than aligned ones [31], meaning that randomly oriented nanostructures may generate more “hot spots”. One of the most

• morphology for SERS measurements can be fabricated using various methods, including sol–gel synthesis [38], thermal deposition [31][32], chemical vapour deposition [42], or electrodeposition [35], which resulted in 1.2 μm high, vertically aligned nanorods of 60 nm diameter. It was observed that thermal

Investigation of electron-induced cross-linking of self-assembled monolayers by scanning tunneling microscopy

• Patrick Stohmann,
• Sascha Koch,
• Yang Yang,
• Christopher David Kaiser,
• Julian Ehrens,
• Jürgen Schnack,
• Niklas Biere,
• Dario Anselmetti,
• Armin Gölzhäuser and
• Xianghui Zhang

Beilstein J. Nanotechnol. 2022, 13, 462–471, doi:10.3762/bjnano.13.39

• to the surface normal [65]. Figure 2b (bottom panel) shows a high-resolution image of the β-phase, which is characterized by rows of oval spots aligned at an angle of ≈60° with respect to the stripe direction. Each oval spot contains two TPT molecules. Such superstructure is caused by point-on-line

• . The irradiated area was typically around 30 × 40 µm2. The time per cycle was 2.5 s. Imaging of SAMs by STM The STM experiments were performed on a commercial Omicron Multiscan system combining both a temperature-variable STM (Multiscan STM VT) and an SEM. The STM tip is aligned at ≈45° with respect to

Electrostatic pull-in application in flexible devices: A review

• Teng Cai,
• Yuming Fang,
• Yingli Fang,
• Ruozhou Li,
• Ying Yu and
• Mingyang Huang

Beilstein J. Nanotechnol. 2022, 13, 390–403, doi:10.3762/bjnano.13.32

• the life cycles of the switch. The MWCNTs prepared by Dujardin et al. [17] had a diameter of 22 nm and a length of 115 nm. The pull-in voltage was reduced to 2.9 V as the gap was only 4 nm. Vertical model: On the basis of the cantilever model, Jang et al. [18][19][20] and Kaul et al. [4] aligned CNTs

• vertically on the substrate. The vertically aligned MWCNTs were prepared by various methods, such as the constriction of CNT growth by nanoscale pockets and DC plasma-enhanced chemical vapor deposition (PECVD), as shown in Figure 2c. Using the vertically aligned CNT switches provides a high density for

• nonvolatile storage memory. However, vertically aligned switches require a pull-in voltage of more than 20 V, higher than the usual horizontally distributed switches. CNT-NEM switches have great potential in nonvolatile memory devices. In addition, CNTs used with metals in composite electrodes, as a bottom

Micro- and nanotechnology in biomedical engineering for cartilage tissue regeneration in osteoarthritis

• Zahra Nabizadeh,
• Mahmoud Nasrollahzadeh,
• Hamed Daemi,
• Mohamadreza Baghaban Eslaminejad,
• Ali Akbar Shabani,
• Mehdi Dadashpour,
• Majid Mirmohammadkhani and
• Davood Nasrabadi

Beilstein J. Nanotechnol. 2022, 13, 363–389, doi:10.3762/bjnano.13.31

• regeneration of cartilage tissue, researchers successfully designed and fabricated aligned porous PLLA electrospun fibers with biomimetic surfaces by combining the electrospinning process with the polydopamine (PDA) coating approach. The in vivo results of this study in a rabbit cartilage defect model showed

• are usually used as fillers in combination with other compounds in the construction of nanocomposites. However, there are a few reports about the fabrication of nanofilms of vertically aligned (VA) CNTs for the 2D culture of chondrocytes. To simultaneously introduce polar functional groups (COH, COOH

Controllable two- and three-state magnetization switching in single-layer epitaxial Pd_1−xFe_x films and an epitaxial Pd_0.92Fe_0.08/Ag/Pd_0.96Fe_0.04 heterostructure

• Igor V. Yanilkin,
• Amir I. Gumarov,
• Gulnaz F. Gizzatullina,
• Roman V. Yusupov and
• Lenar R. Tagirov

Beilstein J. Nanotechnol. 2022, 13, 334–343, doi:10.3762/bjnano.13.28

• necessary to find the particular angle of the applied magnetic field direction with respect to the in-plane four-fold easy axes. Once the conditions of magnetization rotation by 90° are found, the addition of the second, magnetically more hard ferromagnetic layer with properly aligned in-plane easy axes

Systematic studies into uniform synthetic protein nanoparticles

• Nahal Habibi,
• Ava Mauser,
• Jeffery E. Raymond and
• Joerg Lahann

Beilstein J. Nanotechnol. 2022, 13, 274–283, doi:10.3762/bjnano.13.22

• results that found for HEM/HSA SPNPs a right-skewed population in the 30–100 nm diameter range (d = 51 nm), which is much more aligned with the monomodal HEM distribution (d = 65 nm) than the broader HSA distribution (d = 77 nm). Geometric factors (minimum diameter, circularity, anisotropy and roundness

• /HSA are also aligned with the HSA response (Supporting Information File 1, Figure S4, Table S4). These relationships between secondary geometric attributes and particle diameter indicate that the two-factor response of MUC/HSA is dominated by the more hydrophobic HSA constituent, a fact that was not

Effects of drug concentration and PLGA addition on the properties of electrospun ampicillin trihydrate-loaded PLA nanofibers

• Tuğba Eren Böncü and
• Nurten Ozdemir

Beilstein J. Nanotechnol. 2022, 13, 245–254, doi:10.3762/bjnano.13.19

• ratios of PLGA. All PLA and PLA/PLGA nanofibers showed randomly aligned, smooth, and bead-free morphology (Figure 1 and Figure 2). The diameters of the PLA nanofibers ranged from 417 to 477 nm. While the diameter of the nanofiber containing 4% of drug was 417 nm, the diameter of the nanofiber increased

Impact of device design on the electronic and optoelectronic properties of integrated Ru-terpyridine complexes

• Max Mennicken,
• Sophia Katharina Peter,
• Corinna Kaulen,
• Ulrich Simon and
• Silvia Karthäuser

Beilstein J. Nanotechnol. 2022, 13, 219–229, doi:10.3762/bjnano.13.16

• nanoelectrodes separated by gaps of 8 to 20 nm. They are fabricated by electron beam lithography (EBL) in a lift-off process while using a self-aligned Al2O3 hard mask to define the nanogap size [20][21]. The resulting nanoelectrode pairs are used for the on-chip preparation of Ru(TP)2-complex wires according to

Topographic signatures and manipulations of Fe atoms, CO molecules and NaCl islands on superconducting Pb(111)

• Carl Drechsel,
• Philipp D’Astolfo,
• Jung-Ching Liu,
• Thilo Glatzel,
• Rémy Pawlak and
• Ernst Meyer

Beilstein J. Nanotechnol. 2022, 13, 1–9, doi:10.3762/bjnano.13.1

• . Similar CO adsorption experiments were also conducted on Pb(110) (Figure 2a). There, most CO molecules appear in STM images as linear aggregates of different lengths, aligned nearly perpendicular to the row direction of Pb(110). The dimer-like protrusions ((D) in Figure 2b) exhibit a length of ≈7 Å

• , which might be related to a strong interaction with the Pb lattice. While the D features are all aligned in the same direction, the orientation of the T features differs slightly. Both features have an apparent height of ≈0.3 Å, as extracted from the profile of Figure 2b, displayed in Figure 2c. Overall

• observed at much higher temperatures on both surfaces. Dimer and chain structures were always aligned perpendicularly to the close-packed rows suggesting an attractive interaction along the [001] direction of the substrate [58]. CO adsorption sites were found with the C atom on top of Cu or Cu-O rows