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

• , developed by Koshelets and co-workers show a remarkable performance in terms of tunability and linewidth [6][9][12]. However, they emit very little power into free space [11][13][15][16]. The low radiation power efficiency, that is, the ratio of radiated to dissipated power, is commonly attributed to a

• high power-efficiency of approx. 50% and a sufficiently high off-cryostat power above 1 mW. Josephson patch oscillator Since in this work I consider patch antennas, below I will dwell on the patch antenna approach, discussed by Ono and co-workers [24]. Figure 4 shows a design of a Josephson patch

Batch preparation of nanofibers containing nanoparticles by an electrospinning device with multiple air inlets

• Dong Wei,
• Chengwei Ye,
• Adnan Ahmed and
• Lan Xu

Beilstein J. Nanotechnol. 2023, 14, 141–150, doi:10.3762/bjnano.14.15

• nanoparticles (ZnO, purity 99.7%, spherical particles with an average diameter of 50 nm) were supplied by Shanghai Sinopharm Chemical Reagent Co., LTD. N,N-Dimethylformamide (DMF) was purchased from Shanghai Lingfeng Chemical Reagent Co., LTD. All materials are analytical grade and can be used without

• purification. Preparation of spinning solution Firstly, 4.5 g PAN and 44 g DMF solution were weighed separately by an electronic balance (XJ120A, Shanghai Precisa Co., LTD), mixed and placed on an unheated magnetic stirrer (HJ-6A, Gongyi Yuhua Instrument Co., LTD.) for stirring for 24 h. Then 1.5 g ZnO

• characterization The spinning solution viscosity was measured by a viscosity instrument (SNB-1, Shanghai Ruifang Co., LTD.). The spinning solution conductivity was tested by a conductivity tester (DDS-307A, Shanghai INESA Analytical Instrument Co., LTD.). The yield of nanofibers fabricated by EMAI was determined

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• 305 (FastµXRD) and B715-10009 (BioMacroNano2020), all co-financed by the European Union within the framework of the European Regional Development Fund (ERDF). The financial support from the Thuringian State Graduate Support for one of the authors, F.L., is acknowledged.

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

• ; Introduction Atomic force microscopy has established itself as one of the most powerful tools in nanotechnology. With meticulous setups amassing techniques such as ultra high vacuum, cryogenic temperatures, and CO-terminated tips, it is able to create a wonderful vista of surfaces, not missing the atoms for

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

• characterised in two different ways, using two of the most cited sources in the field. At first, the refractive index was defined using Johnson and Christy dataset [33]. Subsequently, the same simulation was repeated exploiting data from Wu and co-workers [35]. The result in terms of SPR curve is plotted in

Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

• Jessica Plé,
• Marine Dabert,
• Helene Lecoq,
• Sophie Hellé,
• Lydie Ploux and
• Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

• triacrylate monomer, which increases the amount of cross-linked polymer chains compared to the diacrylate monomer (PEG600DA). Moreover, particle stabilization is ensured through interactions with the CO• groups resulting from photoinitiator decomposition [49]. In addition, AgNP interactions with the polymer’s

• This project has benefited from the expertise and the facilities of the Platform MACLE-CVL which was co-funded by the European Union and Centre-Val de Loire Region (FEDER). The authors MD, LP and LB express their thanks to the Agence Nationale de la Recherche (ANR) for financial support under contract

Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

• Adrien Chauvin,
• Walter Puglisi,
• Damien Thiry,
• Cristina Satriano,
• Rony Snyders and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

• resulting signal intensity tends to strongly vary due to surface contamination [30]. In this paper, a simple synthesis method to design bimodal porous silver substrate for SERS is reported. Magnetron co-sputtering of a silver and aluminum target was used for the deposition of the precursor alloy thin film

• Discussion Morphology of Ag–Al alloy thin films The deposition of silver–aluminum thin films on silicon was accomplished by magnetron co-sputtering using a silver target and an aluminum target. To allow for a good adhesion between silicon and the alloy thin film, a silver adhesion layer was deposited prior

• were adapted from [39]. The Ag–Al thin films were deposited by DC magnetron co-sputtering in pure argon plasma of a Ag target (diameter: 50.8 mm; purity: 99.99%) and an Al target (diameter: 50.8 mm; purity: 99.99%) placed in a confocal geometry. The distance between the targets and the substrate was

Frontiers of nanoelectronics: intrinsic Josephson effect and prospects of superconducting spintronics

• Anatolie S. Sidorenko,
• Horst Hahn and
• Vladimir Krasnov

Beilstein J. Nanotechnol. 2023, 14, 79–82, doi:10.3762/bjnano.14.9

• drastically lower energy dissipation. А logical solution and the most promising candidate for radical reduction in energy consumption is the superconducting digital technology (SDT) based on Josephson junctions. The intrinsic Josephson effect, which was first reported by Reinhold Kleiner, Paul Müller, and co

• interferometer as an adiabatic neural cell of a perceptron artificial neural network in the quantum regime (a hybrid system whose configuration is dynamically adjusted by a quantum co-processor) [23]. - In several articles of the volume, new phenomena are predicted and investigated for promising spintronics

Liquid phase exfoliation of talc: effect of the medium on flake size and shape

• Samuel M. Sousa,
• Helane L. O. Morais,
• Joyce C. C. Santos,
• Ana Paula M. Barboza,
• Bernardo R. A. Neves,
• Elisângela S. Pinto and
• Mariana C. Prado

Beilstein J. Nanotechnol. 2023, 14, 68–78, doi:10.3762/bjnano.14.8

• Fernandes and co-workers [24], simply looking at mean flake thickness and standard deviation of a sample does not account well for the volume (or mass) of few-layer flakes versus bulk flakes (thicker than 10.5 nm for talc, which represents 10 or more layers). We calculated the mass ratio of bulk (M) and few

• measurements were performed on silicon substrates with an oxide layer, Si/SiOx. Substrates were functionalized with (3-aminopropyl)triethoxysilane (APTES) following the procedure reported by Fernandes and co-workers [24]. X-ray diffraction. XRD was performed in a Rigaku Geigerflex 2037 diffractometer with a

• et al. [24] and Santos and co-workers [25]. In short, a solution (1:40) of APTES in DI water was prepared. Si/SiOx substrates were immersed in the solution for 15 min. Subsequently, each substrate was rinsed with DI water and blown dry with pure N2 five times to ensure the removal of any residual

Solvent-induced assembly of mono- and divalent silica nanoparticles

• Bin Liu,
• Etienne Duguet and
• Serge Ravaine

Beilstein J. Nanotechnol. 2023, 14, 52–60, doi:10.3762/bjnano.14.6

• with two patches functionalized with metal-coordination-based recognition units [20], and by co-assembly of block copolymer micelles and hard nanoparticles [21]. Particles with two patches located at opposite poles have been assembled into a Kagome lattice by hydrophobic interactions [22], into chains

• %), homodimers made of two 1-PSN with a PPSR of 0.45 (≈17.5%), homodimers made of two 1-PSN with a PPSR of 0.38 (≈23%), and also heterotrimers (≈1.5%), and homotrimers (≈1.5%) (Figure 5b). Co-assembly of 2-PSN and 1-PSN acting as chain stoppers It has been previously shown that monofunctional nanoparticles can

• 0.60, which act as colloidal analogues of chain stoppers, at several [1-PSN]/[2-PSN] ratios between 0 and 0.5 [31]. Here we decided to further explore this behavior by expanding the range of [1-PSN]/[2-PSN] ratios from 0 to 1.5. We thus first tried to co-assemble 190 nm 2-PSN with 1-PSN with a PPSR of

Gap-directed chemical lift-off lithographic nanoarchitectonics for arbitrary sub-micrometer patterning

• Chang-Ming Wang,
• Hong-Sheng Chan,
• Chia-Li Liao,
• Che-Wei Chang and
• Wei-Ssu Liao

Beilstein J. Nanotechnol. 2023, 14, 34–44, doi:10.3762/bjnano.14.4

• glycol undecanethiol (TEG), and biotinylated alkane PEG thiol (BAT) were purchased from Sensopath Technologies Inc. (Bozeman, MT, USA). Streptavidin was purchased from Novus Biologicals (Centennial, CO, USA). FITC-labelled antistreptavidin antibody was purchased from Jackson ImmunoResearch Inc. (West

• Grove, PA, USA). Bovine serum albumin (BSA) and 10× phosphate buffered saline (PBS, contains 1.37 M NaCl, 0.027 M KCl, 0.10 M Na2HPO4, and 0.018 M KH2PO4) were purchased from Bioman Scientific Co., Ltd. (Taipei, Taiwan). Ethanol (99.5 wt %), acetone (99.5 wt %), and isopropanol (99.9 wt %) were

• purchased from Echo Chemical (Taipei, Taiwan). Hexamethyldisilazane (HMDS) was purchased from Sigma-Aldrich (St Louis, MO, USA). Iron nitrate and thiourea were purchased from Showa Chemical Industry Co., Ltd. (Tokyo, Japan). Positive photoresist AZ6112 was purchased from AZ Electronic Materials Taiwan Co

The influence of structure and local structural defects on the magnetic properties of cobalt nanofilms

• Alexander Vakhrushev,
• Aleksey Fedotov,
• Olesya Severyukhina and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2023, 14, 23–33, doi:10.3762/bjnano.14.3

• Nb/Co spin-valve nanosystem was reproduced from [37] (© 2020 A. Vakhrushev et al., distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)). Variation of the average value of the crystal lattice ideality parameter in horizontal layers of a

Two-step single-reactor synthesis of oleic acid- or undecylenic acid-stabilized magnetic nanoparticles by thermal decomposition

• Mykhailo Nahorniak,
• Pamela Pasetto,
• Jean-Marc Greneche,
• Volodymyr Samaryk,
• Sandy Auguste,
• Anthony Rousseau,
• Nataliya Nosova and
• Serhii Varvarenko

Beilstein J. Nanotechnol. 2023, 14, 11–22, doi:10.3762/bjnano.14.2

• makes them ideal candidates for magnetic-assisted targeted drug delivery [12]. Nanoscale magnetite can be obtained through well-known synthesis routes, such as hydrothermal synthesis, thermal decomposition, or co-precipitation [10][11]. Each of these synthetic approaches has certain advantages and

• ), without additional co-stabilizers or reducing agents, could be applied to obtain monodisperse nanoparticles of iron oxide (Fe3O4, Fe2O3, or their mixtures) with controlled dimensions using the single-reactor synthesis, which involves the vacuum-controlled formation of Fe(III) alkanoates. It was

• an accelerating voltage of 200 kV was applied. The electronic diffraction patterns were obtained using the SAED technique. The XRD diffraction patterns were collected using a PANalytical MPD-PRO diffractometer equipped with a linear X’celerator detector and a Co Kα lamp as a source of radiation

Observation of collective excitation of surface plasmon resonances in large Josephson junction arrays

• Roger Cattaneo,
• Mikhail A. Galin and
• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2022, 13, 1578–1588, doi:10.3762/bjnano.13.132

• interjunction interaction. Samples We study arrays of Nb/NbxSi1−x/Nb JJs fabricated on oxidized Si substrates and connected in series by Nb electrodes. The NbxSi1−x interlayer with the composition x ≃ 0.14 was deposited by co-sputtering from Nb and Si sources. Details about the fabrication procedure can be

From a free electron gas to confined states: A mixed island of PTCDA and copper phthalocyanine on Ag(111)

• Alfred J. Weymouth,
• Emily Roche and
• Franz J. Giessibl

Beilstein J. Nanotechnol. 2022, 13, 1572–1577, doi:10.3762/bjnano.13.131

• -precision STM and atomic force microscopy (AFM) scanning. Third, CuPc and PTCDA are known to form commensurate phases on flat metal surfaces. In particular, they have been well studied at different stoichiometries on Ag(111) [16]. Henneke and co-workers showed that more than 0.15 ML of PTCDA in addition to

• Measurements were carried out in a He-bath scanning probe microscope (CreaTec Fischer & Co. GmbH) and were acquired in ultrahigh vacuum at 5.6 K. Ag(111) (Mateck GmbH) was prepared with standard sputter and anneal cycles. The PTCDA and CuPc were evaporated from a custom-built evaporator. A detailed description

• to images taken with a CO-terminated tip [23]. However, it could be due to another molecule at the tip apex leading to similar contrast as has been previously discussed in the literature [24]. As there was a slight drift in the vertical direction, the AFM data was plane-subtracted to enhance the

Single-step extraction of small-diameter single-walled carbon nanotubes in the presence of riboflavin

• Polina M. Kalachikova,
• Anastasia E. Goldt,
• Eldar M. Khabushev,
• Timofei V. Eremin,
• Timofei S. Zatsepin,
• Elena D. Obraztsova,
• Konstantin V. Larionov,
• Liubov Yu. Antipina,
• Pavel B. Sorokin and
• Albert G. Nasibulin

Beilstein J. Nanotechnol. 2022, 13, 1564–1571, doi:10.3762/bjnano.13.130

• helical densities discussed by Sharifi and co-workers [17]. For each (n,m)-SWCNT, three riboflavin molecules were deposited on its surface (Figure 4) and relaxed reproducing wrapping patterns [17]. SWCNT was excluded from ongoing modeling, while nitrogen atoms were fixed to preserve the optimized

Utilizing the surface potential of a solid electrolyte region as the potential reference in Kelvin probe force microscopy

• Nobuyuki Ishida

Beilstein J. Nanotechnol. 2022, 13, 1558–1563, doi:10.3762/bjnano.13.129

•  1a. We used narrow electrodes (≈100 μm) to suppress the non-local capacitive coupling between the electrode and the tip, which is expected to reduce the tip-averaging effect [21][22][23]. A metallic Li foil (Honjo metal Co., Ltd.) was used to measure the Au electrode potential versus Li/Li+. To avoid

• the reduction of Ti ions in the solid electrolyte owing to direct contact between the Li metal and solid electrolyte, a poly(ethylene oxide)-based polymer electrolyte film (Osaka Soda Co., Ltd.), denoted PEO, was inserted between them. Before the KPFM measurements, the sample was heated at 150 °C for

• , shown in Figure 1. Potential of Au1 and Au2 electrodes relative to the Li reference electrode at each applied DC voltage during the KPFM measurements. Acknowledgements We thank Osaka Soda Co., Ltd. for the supply of the polymer electrolyte film. Funding This work was partially supported by the

Non-stoichiometric magnetite as catalyst for the photocatalytic degradation of phenol and 2,6-dibromo-4-methylphenol – a new approach in water treatment

• Joanna Kisała,
• Anna Tomaszewska and
• Przemysław Kolek

Beilstein J. Nanotechnol. 2022, 13, 1531–1540, doi:10.3762/bjnano.13.126

• purification. Characterization of the photocatalysts The PZC of catalysts was measured according to Kocharova and co-workers [41]. For the determination of pHPZC, eleven vials were filled with 0.1 mol·L−1 NaCl solution. The pH of each vial was adjusted with NaOH and HCl solutions to pH 2–12. Next, 10 mg of

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• reagent, purity ≥99.0%, purchased from Sigma-Aldrich Co) was used as a silver nanoparticle precursor. Aqueous extraction by infusion of pineapple peel MD2 pineapples were peeled and used. The peel was cut into small pieces, and dried to a constant weight. Then, 100 g of dehydrated pineapple peel was

Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

• Olga Shikimaka,
• Mihaela Bivol,
• Bogdan A. Sava,
• Marius Dumitru,
• Christu Tardei,
• Beatrice G. Sbarcea,
• Daria Grabco,
• Constantin Pyrtsac,
• Daria Topal,
• Andrian Prisacaru,
• Vitalie Cobzac and
• Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

• addition of different dopants to the glass can enhance the osteogenesis (Mg, Sr, Fe, and Zr) or can yield particular properties such as angiogenesis (Cu and Co) and antimicrobial activity (Ag, Zn, Ce, Ga, and Cu). Also, dopants can change the glass solubility [13][15][16][17][18][19]. The presence of the

Structural studies and selected physical investigations of LiCoO₂ obtained by combustion synthesis

• Monika Michalska,
• Paweł Ławniczak,
• Tomasz Strachowski,
• Adam Ostrowski and
• Waldemar Bednarski

Beilstein J. Nanotechnol. 2022, 13, 1473–1482, doi:10.3762/bjnano.13.121

• discussion below), (ii) the substitution of Co ions with other metal ions, such as Mg, Al, Fe, Ni, Mn, V [10][11][12][13][14][15][16][17][18][19][20][21][22], or (iii) the surface modification by carbon, metal, or oxide coatings [15][16]. Nanomaterials are preferred for the use in energy storage and

• given in the literature on the layered structure. The lattice constants depend on the fraction of vacancies and the mixing of Li/Co positions. There were no significant changes of the lattice constants a and c as functions of the temperature and size of the crystallites. Specific surface area

Facile preparation of Au- and BODIPY-grafted lipid nanoparticles for synergized photothermal therapy

• Yuran Wang,
• Xudong Li,
• Haijun Chen and
• Yu Gao

Beilstein J. Nanotechnol. 2022, 13, 1432–1444, doi:10.3762/bjnano.13.118

• platform to deliver both AuNPs and BODIPY dye for synergized PTT. To our knowledge, this is the first report about using LNPs as carriers for the co-delivery of gold nanoclusters and BODIPY, the first investigation of the synergistic thermal effects of gold nanoclusters and BODIPY, and the first

Density of states in the presence of spin-dependent scattering in SF bilayers: a numerical and analytical approach

• Tairzhan Karabassov,
• Valeriia D. Pashkovskaia,
• Nikita A. Parkhomenko,
• Anastasia V. Guravova,
• Elena A. Kazakova,
• Boris G. Lvov,
• Alexander A. Golubov and
• Andrey S. Vasenko

Beilstein J. Nanotechnol. 2022, 13, 1418–1431, doi:10.3762/bjnano.13.117

• are the special case of the more general formalism derived by Ivanov and co-workers [96]. Thus, the equations that we use in our calculations are exactly a quasiclassical limit of the model derived in [96] except that in our model we also include spin–orbit scattering. Ivanov et al. describe the spin

Orally administered docetaxel-loaded chitosan-decorated cationic PLGA nanoparticles for intestinal tumors: formulation, comprehensive in vitro characterization, and release kinetics

• Sedat Ünal,
• Osman Doğan and
• Yeşim Aktaş

Beilstein J. Nanotechnol. 2022, 13, 1393–1407, doi:10.3762/bjnano.13.115

• drug delivery system loaded with docetaxel (DCX) as an anticancer drug, using poly(lactic-co-glycolic acid) (PLGA) as nanoparticle material, and modified with chitosan (CS) to gain mucoadhesive properties. In this context, an innovative nanoparticle formulation that can protect orally administered DCX

• appears to be the primary problem and requires the addition of a co-solvent and/or a surfactant (ethanol/polysorbate 80) to the formulations [32][36]. However, results such as acute hypersensitivity reactions and decreased clinical efficacy have been reported due to auxiliary components such as Cremophor

• . Experimental Materials Poly(lactide-co-glycolide) (PLGA) 50:50 (RG 502H) (Mw = 7–17 kDa; lactide/glycolide = 50:50) was purchased from Sigma-Aldrich (St. Louis, MO, USA). Chitosan (Protasan UP G-113; Mw < 200 kDa) was purchased from Novamatrix, Norway. Docetaxel was kindly donated by ILKO, Turkey. Ethyl

Dry under water: air retaining properties of large-scale elastomer foils covered with mushroom-shaped surface microstructures

• Matthias Mail,
• Stefan Walheim,
• Thomas Schimmel,
• Wilhelm Barthlott,
• Stanislav N. Gorb and
• Lars Heepe

Beilstein J. Nanotechnol. 2022, 13, 1370–1379, doi:10.3762/bjnano.13.113

• Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany Department of Functional Morphology and Biomechanics, Institute of Zoology, Christian-Albrechts-University of Kiel, Am Botanischen Garten 1–9, D-24118 Kiel, Germany Gottlieb Binder GmbH & Co KG, Bahnhofstr. 19, D-71088